Comprehensive Guide to 1800+ Adjectives That Start With U

Adjectives are essential for vivid and expressive communication, adding depth, color, and emotional resonance to your language. They transform ordinary statements into impactful and engaging expressions. Adjectives starting with the letter "U" often convey unique qualities such as unity, understanding, and upliftment, making them valuable tools for enhancing your writing and captivating your audience.

This page is your ultimate guide to exploring adjectives that begin with "U." Whether you’re a creative writer crafting compelling narratives, a student polishing your essays, or a language enthusiast eager to expand your vocabulary, this resource equips you to communicate with precision, creativity, and clarity.

To make your exploration seamless, we've organized adjectives starting with "U" into intuitive categories. Each section includes detailed definitions, practical examples, and relevant synonyms, enabling you to confidently incorporate these words into any context. With over 1800 meticulously curated "U" adjectives, this guide is designed to inspire you, enrich your vocabulary, and elevate your expression.

Positive Adjectives Starting with "U": These adjectives emphasize uplifting qualities such as unwavering support, unyielding determination, and universal kindness. Ideal for motivational writing, personal development, and fostering positive connections.
Empowering Adjectives Starting with "U": Highlighting traits like unique brilliance, unmatched leadership, and unshakable resilience, these adjectives are perfect for professional content, inspirational messages, and self-growth narratives.
Descriptive Adjectives Starting with "U": Great for storytelling, these adjectives bring to life scenes of urban sophistication, untamed wilderness, or uncharted adventures, enriching your narratives and making them unforgettable.
Emotive Adjectives Starting with "U": These adjectives capture emotions such as unconditional love, urgent desire, and unwavering loyalty, helping you establish a deep connection with your audience.

This comprehensive guide offers a treasure trove of adjectives starting with "U." Whether you’re striving to inspire positivity, convey unique traits, or create compelling narratives, these adjectives will unlock new dimensions of expression. Dive into the world of "U" adjectives and discover innovative ways to communicate with creativity and originality.

Positive Adjectives Starting with "U"

Positive adjectives starting with "U" encompass qualities such as unwavering support, uplifting energy, and universal kindness. Whether you're describing an uplifting experience, celebrating an unparalleled achievement, or highlighting an understanding gesture, these words bring depth and positivity to your language. Adjectives like unique, unwavering, and united convey strength and connection, while terms such as upbeat and unifying inspire optimism and harmony in your communication.

Incorporating positive adjectives that start with "U" can elevate the tone of your writing, fostering connection and engagement. Whether you're crafting motivational speeches, heartfelt messages, or captivating stories, these adjectives exude authenticity and hope. Words like uplifting, understanding, and unforgettable add warmth, positivity, and resonance to your message. Embrace these "U" adjectives to inspire joy, foster meaningful connections, and leave a lasting impression on your audience.

For a broader range of Positive Adjectives, don’t forget to explore our Comprehensive List of Positive Adjectives

Additionally, you can expand your vocabulary further by checking out our Comprehensive List of Adjectives Starting with "U".

Adjective	Meaning	Synonyms
Uplifting	Providing moral or emotional support and inspiration	Encouraging, Inspiring, Heartening
Understanding	Compassionate and empathetic toward others	Compassionate, Sympathetic, Empathetic
Unique	Being the only one of its kind; unlike anything else	Distinctive, Special, Unparalleled
Unwavering	Firm and resolute; not swayed or shaken	Steadfast, Resolute, Constant
Upbeat	Cheerful and optimistic	Cheerful, Positive, Buoyant
Unifying	Bringing people or things together as a whole	Harmonizing, Integrating, Connecting
Untiring	Displaying great effort and persistence	Indefatigable, Diligent, Persistent
Unselfish	Putting others' needs before one's own	Generous, Selfless, Altruistic
Urbane	Charming, courteous, and refined in manner	Suave, Sophisticated, Polished
Unparalleled	Having no equal; better or greater than any other	Matchless, Incomparable, Unrivaled
Upstanding	Honest and morally admirable	Honorable, Virtuous, Ethical
Unstoppable	Impossible to prevent or hinder	Unbeatable, Invincible, Relentless
Unblemished	Free from flaws or imperfections	Spotless, Flawless, Pristine
Unwavering	Steady and resolute; not hesitant	Firm, Resolute, Determined
Unifying	Serving to unite or bring together	Harmonizing, Integrative, Cohesive
Unpretentious	Simple and humble in manner or appearance	Modest, Humble, Down-to-earth
Uplifted	Feeling inspired or emotionally elevated	Encouraged, Exhilarated, Energized
Untouched	Not harmed, changed, or affected	Pristine, Unspoiled, Pure
Unbeatable	Impossible to defeat	Invincible, Supreme, Unconquerable
Understanding	Having insight or good judgment	Perceptive, Empathetic, Compassionate

Negative Adjectives Starting with "U"

Negative adjectives starting with "U" are essential for expressing flaws, challenges, or unsettling emotions in your writing. Whether you're describing an unfortunate event, an untrustworthy individual, or an unstable situation, these words bring authenticity and depth to your narratives. Adjectives like uncertain, unbearable, and unruly reflect struggles and tension, while terms such as unforgiving and unjust add layers of conflict and drama to your storytelling.

Incorporating negative adjectives that start with "U" can heighten the emotional complexity of your writing and create multidimensional characters. Whether you're crafting suspenseful plots, exploring moments of difficulty, or portraying inner turmoil, these adjectives articulate adversity with clarity and impact. Explore our curated list of negative adjectives starting with "U" to expand your vocabulary and enhance your creative expression with powerful and evocative language.

For a broader range of Nagative Adjectives, don’t forget to explore our Comprehensive List of Negative Adjectives

Additionally, you can expand your vocabulary further by checking out our Comprehensive List of Adjectives Starting with "U"

Adjective	Meaning	Synonyms
Unacceptable	Not satisfactory or allowable	Intolerable, Objectionable, Inappropriate
Uncaring	Showing no concern or sympathy for others	Indifferent, Apathetic, Cold
Unclear	Not easy to understand or ambiguous	Vague, Confusing, Obscure
Uncooperative	Not willing to work with others	Stubborn, Difficult, Obstructive
Unforgiving	Not willing to forgive or excuse faults	Harsh, Merciless, Relentless
Unkind	Lacking kindness or compassion	Cruel, Harsh, Mean
Unjust	Not based on fairness or justice	Unfair, Biased, Prejudiced
Unmotivated	Lacking enthusiasm or interest	Indifferent, Apathetic, Dispassionate
Unpleasant	Causing discomfort or displeasure	Disagreeable, Irritating, Annoying
Unreliable	Not dependable or trustworthy	Undependable, Untrustworthy, Erratic
Unsatisfactory	Not meeting expectations or needs	Inadequate, Poor, Substandard
Unstable	Likely to change or fail; not secure	Precarious, Erratic, Volatile
Unsubtle	Lacking refinement or sophistication	Obvious, Crude, Blunt
Untidy	Not neat or organized	Messy, Disorganized, Cluttered
Untruthful	Not honest or truthful	Dishonest, Deceitful, Misleading
Unwilling	Reluctant or not inclined to do something	Resistant, Opposed, Hesitant
Unwise	Lacking good judgment or prudence	Foolish, Imprudent, Rash
Unworthy	Not deserving of respect or attention	Undeserving, Shameful, Disgraceful
Unyielding	Not flexible or willing to compromise	Rigid, Inflexible, Stubborn
Unappealing	Not attractive or pleasing	Unattractive, Off-putting, Unpleasant

Descriptive Adjectives Starting with "U"

Descriptive adjectives starting with "U" add precision, creativity, and vivid imagery to your writing. Whether you're portraying an urban landscape, describing an unwavering character, or capturing an uplifting moment, these words infuse your language with depth and uniqueness. Adjectives like unusual, untamed, and unified provide fresh and engaging ways to depict settings, emotions, and personalities, making your content more memorable and impactful.

Using descriptive adjectives that start with "U" empowers you to convey ideas with clarity and elegance. Whether you're crafting immersive narratives, writing persuasive essays, or delivering motivational speeches, these adjectives enrich your expression and resonate with your audience. Dive into our curated collection of descriptive adjectives starting with "U" to enhance your vocabulary and elevate your writing with dynamic, evocative language.

For a broader range of Descriptive Adjectives, don’t forget to explore our Comprehensive List of Descriptive Adjectives

Additionally, you can expand your vocabulary further by checking out our Comprehensive List of Adjectives Starting with "U".

Adjective	Meaning	Synonyms
Unique	Being the only one of its kind; unlike anything else	Distinctive, Special, Singular
Uplifting	Providing moral or emotional inspiration	Encouraging, Heartening, Inspiring
Urban	Relating to a city or town	Metropolitan, City-like, Civic
Unblemished	Free from flaws or imperfections	Pristine, Spotless, Flawless
Uncharted	Not explored or mapped	Unknown, Unexplored, Untapped
Untamed	Not domesticated or controlled	Wild, Savage, Uncontrolled
Unparalleled	Having no equal; unmatched	Incomparable, Unrivaled, Supreme
Unpretentious	Simple and modest; not showy	Humble, Down-to-earth, Modest
Unprecedented	Never done or known before	Groundbreaking, Novel, Revolutionary
Unwavering	Steady and resolute; not hesitant	Steadfast, Firm, Resolute
Unyielding	Not giving way to pressure; firm	Stubborn, Inflexible, Determined
Upbeat	Cheerful and optimistic	Positive, Buoyant, Cheerful
Urbane	Charming, courteous, and refined in manner	Suave, Sophisticated, Polished
Unassuming	Not pretentious or arrogant	Modest, Humble, Reserved
Untouched	Not altered, affected, or changed	Pristine, Unspoiled, Pure
Unfolding	Gradually developing or revealing	Evolving, Emerging, Progressing
Unstoppable	Impossible to stop or prevent	Invincible, Relentless, Unbeatable
Unmistakable	Not able to be mistaken for anything else	Clear, Obvious, Distinct
Undaunted	Not discouraged or intimidated by difficulty	Fearless, Brave, Resolute
Unfaltering	Steady and resolute	Determined, Resolute, Persistent

Emotional Adjectives Starting with "U"

Emotional adjectives starting with "U" are invaluable for expressing the diverse and intricate spectrum of human emotions with authenticity and nuance. Whether you're describing someone as uplifted in their spirit, understanding in their empathy, or uneasy in their uncertainty, these words bring emotions to life with vivid clarity. Adjectives like unwavering, urgent, and unsettled add depth and resonance, enriching the emotional impact of your writing.

Incorporating emotional adjectives that start with "U" enables you to convey complex feelings with creativity and precision. Whether you're building relatable characters, writing heartfelt messages, or crafting immersive narratives, these adjectives foster a deeper connection with your audience. Explore our curated collection of emotional adjectives starting with "U" to expand your vocabulary and infuse your communication with sincerity, expressiveness, and emotional depth.

For a broader range of Emotional Adjectives, don’t forget to explore our Comprehensive List of Emotional Adjectives

Additionally, you can expand your vocabulary further by checking out our Comprehensive List of Adjectives Starting with "U" linked below on this page.

Adjective	Meaning	Synonyms
Uplifted	Feeling emotionally elevated or inspired	Inspired, Encouraged, Exhilarated
Uneasy	Feeling anxious or uncomfortable	Worried, Nervous, Restless
Unsettled	Feeling disturbed or uneasy	Disturbed, Anxious, Restless
Understanding	Empathetic and compassionate	Empathetic, Sympathetic, Compassionate
Urgent	Feeling a strong need or importance	Pressing, Compelling, Insistent
Unloved	Feeling not loved or cared for	Rejected, Forsaken, Neglected
Unappreciated	Feeling undervalued or not recognized	Overlooked, Ignored, Neglected
Unforgiving	Feeling unwilling to forgive	Merciless, Harsh, Resentful
Uncertain	Feeling unsure or doubtful	Insecure, Hesitant, Indecisive
Unworthy	Feeling undeserving or inadequate	Undeserving, Shameful, Inferior
Undaunted	Feeling courageous and determined despite challenges	Fearless, Resolute, Brave
Uninspired	Feeling lacking in creativity or enthusiasm	Unmotivated, Bored, Apathetic
Unashamed	Feeling no guilt or embarrassment	Confident, Bold, Shameless
Upset	Feeling distressed or agitated	Disturbed, Troubled, Agitated
Unfazed	Feeling not disconcerted or perturbed	Calm, Unbothered, Composed
Unsure	Feeling uncertain or hesitant	Indecisive, Hesitant, Doubtful
Unfulfilled	Feeling not satisfied or content	Dissatisfied, Restless, Incomplete
Unhindered	Feeling free of constraints or obstacles	Unrestrained, Unrestricted, Free
Uncertain	Feeling unsure about something	Hesitant, Doubtful, Insecure
Unexcited	Feeling lacking enthusiasm or interest	Indifferent, Apathetic, Unmoved

Explore Over 1800 Adjectives Starting with "U" – Complete with Definitions, Synonyms, and Examples

Dive into this all-encompassing guide featuring a wide array of adjectives starting with "U," complete with precise definitions, thoughtfully curated synonyms, and real-world usage examples. Whether you're a writer looking to add depth and vibrancy to your descriptions, a student aiming to broaden your vocabulary, or a language enthusiast eager to refine your communication skills, this resource is crafted to meet your needs. Discover how these adjectives can enrich your language, unlock your creativity, and empower you to communicate with confidence, precision, and originality.

Adjective	Meaning	Synonyms
Ubiquitous	Present, appearing, or found everywhere	Omnipresent, pervasive, universal
Ugandan	Relating to Uganda or its people	-
Ugliest	Most unattractive or unpleasant to look at	Unattractive, hideous, grotesque
Ugly	Unpleasant or repulsive, especially in appearance	Unattractive, hideous, unsightly
Ukrainian	Relating to Ukraine or its people	-
Ulcerated	Affected with or as if with an ulcer	Sore, eroded, infected
Ulcerative	Characterized by or causing ulcers	Inflammatory, eroding, festering
Ulcerous	Having the nature of an ulcer; infected	Festering, sore, inflamed
Ulnar	Relating to the ulna, a bone in the forearm	-
Ulterior	Beyond what is immediately evident	Hidden, underlying, covert
Ultimate	Being the best or most extreme example of its kind	Final, supreme, utmost
Ultra-cautious	Extremely cautious or careful	Overcautious, wary, vigilant
Ultra-clean	Exceptionally clean	Spotless, pristine, immaculate
Ultraconservative	Extremely conservative, especially politically	Traditionalist, reactionary, right-wing
Ultra-coordinated	Highly organized and synchronized	Organized, orderly, aligned
Ultradurable	Extremely durable or resistant	Resilient, robust, strong
Ultra-fashionable	Very stylish or trendy	Chic, trendy, stylish
Ultra-fine	Extremely fine or delicate	Delicate, refined, thin
Ultra-fresh	Exceptionally fresh, often newly produced	New, crisp, pristine
Ultra-hot	Extremely hot	Scorching, blazing, sizzling
Ultra-light	Extremely lightweight	Lightweight, airy, featherweight
Ultramarine	A deep blue color	Azure, cobalt, navy
Ultramicro	Extremely small, microscopic	Microscopic, minuscule, tiny
Ultramicroscopic	So small as to be invisible to the naked eye	Invisible, micro, atomic
Ultramild	Extremely mild or gentle	Gentle, soft, tender
Ultramobile	Highly mobile or movable	Portable, mobile, nimble
Ultramodern	Extremely modern, using the latest technology	Advanced, state-of-the-art, futuristic
Ultra-modern	Extremely modern	Contemporary, advanced, trendy
Ultramontane	Situated beyond the mountains	-
Ultranarrow	Extremely narrow	Thin, narrow, slender
Ultranationalistic	Extremely nationalistic or patriotic	Patriotic, chauvinistic, nationalist
Ultraneat	Exceptionally neat or organized	Tidy, orderly, organized
Ultrapatriotic	Extremely patriotic	Nationalist, patriotic, fervent
Ultraportable	Highly portable, easy to carry	Compact, portable, lightweight
Ultra-quiet	Extremely quiet or silent	Silent, still, noiseless
Ultra-rare	Very rare or uncommon	Scarce, unusual, unique
Ultrarefined	Highly refined or polished	Polished, sophisticated, elegant
Ultrareliable	Extremely reliable or dependable	Dependable, trustworthy, stable
Ultrasecret	Highly confidential or secret	Confidential, classified, covert
Ultrasensitive	Exceptionally sensitive or responsive	Perceptive, delicate, responsive
Ultra-sharp	Extremely sharp or keen	Acute, precise, razor-sharp
Ultra-sleek	Exceptionally smooth and stylish	Smooth, streamlined, stylish
Ultra-slim	Very slim or thin	Thin, slender, svelte
Ultra-smooth	Exceptionally smooth	Sleek, silky, polished
Ultrasoft	Extremely soft	Fluffy, gentle, delicate
Ultra-soft	Very soft or gentle	Supple, tender, cushioned
Ultrasonic	Sound frequencies above human hearing range	-
Ultrasound	Using or relating to ultrasound technology	-
Ultraspecialized	Highly specialized	Focused, expert, advanced
Ultraspecific	Very specific or detailed	Precise, exact, detailed
Ultrastrong	Exceptionally strong or durable	Sturdy, resilient, powerful
Ultra-strong	Extremely strong or tough	Robust, durable, powerful
Ultra-stylish	Extremely fashionable or trendy	Chic, modern, trendy
Ultrasuccessful	Exceptionally successful	Triumphant, accomplished, prosperous
Ultrasuede	Made of a soft, suede-like material	Suede-like, soft, plush
Ultratable	Highly stable or balanced	Balanced, steady, secure
Ultrathin	Exceptionally thin	Slender, delicate, slim
Ultra-thin	Very thin or lightweight	Svelte, slim, skinny
Ultra-tight	Extremely tight or restrictive	Firm, close-fitting, snug
Ultra-tough	Exceptionally tough or durable	Hardy, robust, resilient
Ultratraditional	Extremely traditional, adhering to old customs	Conservative, conventional, orthodox
Ultratrendy	Very trendy or fashionable	Chic, stylish, fashionable
Ultraviolet	Relating to electromagnetic radiation beyond visible light	-
Ultrawarm	Exceptionally warm or cozy	Cozy, snug, heated
Ultrawide	Very wide or broad	Expansive, broad, extensive
Umbellar	Relating to or resembling an umbel in shape	-
Umbellate	Having or resembling an umbel form	Clustered, radiating, spread
Umbelliferous	Belonging to the parsley family, with umbels	-
Umbelliform	Shaped like an umbel	Radiate, cluster-like, umbrella-shaped
Umber	Dark brownish color, often earthy	Brown, earthy, tan
Umbilical	Relating to the navel or umbilical cord	Naval, central, cord-like
Umbilicate	Having a navel or central depression	Indented, concave, hollowed
Umbonal	Relating to or resembling a rounded projection	Bulging, rounded, convex
Umbonate	Having a raised, rounded center	Raised, convex, mound-shaped
Umboniform	Shaped like a rounded knob or umbo	Knobby, rounded, dome-like
Umbrageous	Shady or providing shade	Shady, shadowed, overcast
Umbral	Relating to shadows or shade	Shadowy, dim, shaded
Umbrellalike	Resembling an umbrella in shape or function	-
Umbreous	Shaded, dark, or shadowy	Dark, shaded, dim
Umbrious	Dark or shadowy in nature	Gloomy, shadowed, dim
Umpteenth	Indicating an indefinitely large number	Numerous, countless, infinite
Umteen	A large but indefinite number	Numerous, countless, many
Umteenth	Used to describe an indefinitely large count	Numerous, uncountable, many
Unabashed	Not embarrassed or ashamed	Bold, unashamed, confident
Unabated	Not weakened or reduced	Persistent, continuous, undiminished
Unabiding	Not enduring or lasting	Transient, fleeting, temporary
Unabject	Not despicable or lowly	Noble, honorable, dignified
Unable	Lacking the skill or power to do something	Incapable, unfit, helpless
Unabridged	Complete; not shortened	Full, entire, complete
Unabrogated	Not repealed or annulled	Valid, upheld, in force
Unabrupt	Not sudden or unexpected	Gradual, smooth, calm
Unabsorbable	Incapable of being absorbed	Impermeable, impenetrable, resistant
Unabsorbent	Not capable of absorbing liquids	Waterproof, impermeable, nonporous
Unabstemious	Not self-restrained or moderate	Indulgent, excessive, intemperate
Unabused	Not harmed or mistreated	Safe, intact, unharmed
Unacademic	Not scholarly or theoretical	Practical, untheoretical, applied
Unaccented	Without emphasis or stress	Monotone, flat, unstressed
Unacceptable	Not satisfactory or allowable	Intolerable, inadmissible, undesirable
Unaccepted	Not approved or accepted	Rejected, unapproved, denied
Unaccessible	Not reachable or accessible	Inaccessible, unreachable, isolated
Unacclimated	Not adjusted to a new climate or environment	Unadapted, unaccustomed, unadjusted
Unacclimatized	Not accustomed to a particular environment	Unfamiliar, unadjusted, unadapted
Unaccommodable	Not easily adjusted to or changed	Inflexible, rigid, stubborn
Unaccommodating	Not helpful or obliging	Inconsiderate, unhelpful, uncooperative
Unaccompanied	Without company; alone	Solitary, alone, unaided
Unaccountable	Not responsible or explainable	Inexplicable, mysterious, unexplainable
Unaccredited	Not officially recognized or authorized	Unauthorized, unapproved, unofficial
Unaccused	Not accused of wrongdoing	Innocent, blameless, guiltless
Unaccustomable	Not capable of being accustomed or adapted	Inflexible, unadaptable, unyielding
Unaccustomed	Not familiar or used to	Inexperienced, unfamiliar, unused
Unachievable	Not able to be achieved or accomplished	Impossible, unattainable, unfeasible
Unaching	Without pain or soreness	Painless, comfortable, easy
Unacidic	Not acidic in nature	Neutral, non-acidic, alkaline
Unacknowledged	Not recognized or acknowledged	Ignored, unrecognized, unnoticed
Unacquainted	Not familiar with someone or something	Unknown, unfamiliar, unrecognized
Unacquisitive	Not inclined to acquire possessions	Non-materialistic, unselfish, ungreedy
Unactable	Not able to be acted or performed	Unplayable, unperformable, inexpressible
Unactive	Not active or energetic	Inactive, idle, passive
Unadaptable	Not capable of adapting to new conditions	Inflexible, unyielding, rigid
Unadapted	Not adjusted or suitable	Unfit, unadjusted, unsuitable
Unaddicted	Not addicted or dependent on anything	Non-dependent, unhooked, unaffected
Unaddictive	Not causing addiction	Non-habit-forming, safe, harmless
Unaddressed	Not dealt with or discussed	Ignored, unresolved, unattended
Unadhesive	Not sticky or adhesive	Non-sticky, smooth, slick
Unadjustable	Cannot be changed or adapted	Fixed, immovable, unchangeable
Unadjusted	Not modified or altered	Original, unaltered, unmodified
Unadmirable	Not worthy of admiration	Unimpressive, undesirable, unattractive
Unadmissible	Not allowable or acceptable	Inadmissible, unacceptable, prohibited
Unadoptable	Not suitable for adoption	Unfitting, unsuited, inappropriate
Unadopted	Not taken up or accepted	Unused, unclaimed, neglected
Unadorned	Plain, without decoration	Simple, bare, undecorated
Unadulating	Without undulating or wavy movement	Flat, straight, even
Unadulterated	Pure, not mixed with any other elements	Pure, clean, undiluted
Unadventurous	Not seeking adventure or excitement	Cautious, conservative, risk-averse
Unadvisable	Not recommended or wise	Ill-advised, risky, unsuitable
Unadvised	Without counsel or advice	Uninformed, rash, unplanned
Unaerated	Not exposed to air	Sealed, enclosed, airtight
Unaesthetic	Lacking in beauty or appeal	Ugly, unattractive, plain
Unaffable	Not friendly or easy to talk to	Aloof, distant, unapproachable
Unaffected	Not influenced or touched by external factors	Unmoved, indifferent, untouched
Unaffecting	Not causing emotional response	Unmoving, dull, bland
Unaffectionate	Lacking affection or warmth	Cold, unloving, distant
Unaffiliated	Not officially attached or connected	Independent, unattached, free
Unaffixed	Not attached or fastened	Loose, detached, separate
Unafflicted	Not suffering from pain or distress	Healthy, well, untroubled
Unaffordable	Too expensive to be afforded	Costly, expensive, out of reach
Unafraid	Not scared or frightened	Brave, fearless, bold
Unaged	Not aged or matured	Young, fresh, new
Unaggravated	Not made worse or more severe	Mild, calm, manageable
Unaggressive	Not forceful or confrontational	Passive, peaceful, non-violent
Unagile	Lacking agility or flexibility	Clumsy, stiff, inflexible
Unagitated	Calm and not disturbed	Calm, peaceful, serene
Unagonized	Not experiencing pain or agony	Calm, untroubled, painless
Unagonizing	Not causing pain or agony	Painless, mild, gentle
Unagreed	Not in agreement	Disputed, unresolved, undecided
Unahistorical	Not related to history or past events	Modern, ahistorical, contemporary
Unaided	Without help or assistance	Alone, unassisted, solo
Unairable	Not suitable for broadcasting	Unsuitable, inappropriate, censored
Unaired	Not shown or broadcasted	Unseen, unshown, withheld
Unairworthy	Not fit for flying	Unsafe, unfit, grounded
Unairy	Lacking airiness or freshness	Stuffy, confined, dense
Unalarming	Not causing alarm or worry	Calm, reassuring, harmless
Unalert	Not aware or attentive	Oblivious, unaware, inattentive
Unalienable	Cannot be taken away or transferred	Inherent, absolute, irrevocable
Unalike	Not similar or alike	Different, dissimilar, unlike
Unallayed	Not lessened or relieved	Intense, undiminished, unrelieved
Unalleged	Not claimed or accused	Undeclared, unaccused, unstated
Unallowable	Not permitted or accepted	Forbidden, disallowed, prohibited
Unalloyed	Pure and not mixed with anything else	Pure, untainted, unblended
Unalluring	Not attractive or enticing	Unattractive, unappealing, dull
Unallusive	Not making indirect references	Direct, explicit, clear
Unalluvial	Not relating to or formed by sediment	Non-sedimentary, rocky, solid
Unalterable	Cannot be changed	Fixed, immutable, permanent
Unaltered	Not modified or changed	Untouched, unchanged, original
Unamazed	Not impressed or amazed	Unmoved, indifferent, unimpressed
Unambiguous	Clear and precise, not open to multiple interpretations	Clear, definite, straightforward
Unambitious	Lacking ambition or desire for success	Apathetic, indifferent, uninspired
Unamendable	Cannot be corrected or changed	Fixed, permanent, irremediable
Unamended	Not improved or corrected	Uncorrected, unchanged, as is
Unamending	Not undergoing changes or improvements	Static, fixed, constant
Unamphibious	Not able to live both on land and in water	Land-based, non-amphibious, terrestrial
Unamplified	Not increased in volume or power	Soft, quiet, low
Unamused	Not entertained or laughing	Serious, indifferent, unimpressed
Unanalogous	Not similar or comparable	Dissimilar, unrelated, distinct
Unanalytical	Not using or skilled in analysis	Non-analytical, uncritical, superficial
Unanalyzable	Cannot be analyzed or broken down	Indecipherable, incomprehensible, inscrutable
Unanalyzed	Not examined or broken down into parts	Whole, untouched, unexplored
Unanchored	Not fixed in place	Loose, detached, drifting
Unancient	Not old or ancient	Modern, recent, new
Unangelic	Not resembling an angel	Human, flawed, imperfect
Unangry	Not angry or upset	Calm, content, peaceful
Unanguished	Free from severe mental or physical pain	Calm, peaceful, untroubled
Unangular	Not having sharp angles	Rounded, smooth, curved
Unanimated	Lacking life or excitement	Dull, lifeless, flat
Unanimous	Fully in agreement	Agreed, unified, consistent
Unannealed	Not subjected to the annealing process	Unprocessed, untreated, raw
Unannexed	Not added or joined	Separate, detached, independent
Unannounced	Not made public or declared	Secret, undisclosed, unpublicized
Unanswerable	Not capable of being answered	Indisputable, irrefutable, definitive
Unanswered	Not responded to	Ignored, unresolved, neglected
Unanticipatable	Cannot be predicted or expected	Unforeseeable, unpredictable, surprising
Unanticipated	Not expected or planned	Surprising, unforeseen, unexpected
Unapologetic	Not sorry or remorseful	Unrepentant, shameless, unapologetic
Unappareled	Not dressed or clothed	Naked, bare, undressed
Unapparent	Not visible or obvious	Hidden, unseen, subtle
Unappealable	Cannot be challenged or appealed	Final, absolute, conclusive
Unappealing	Not attractive or pleasing	Unattractive, unpleasant, undesirable
Unappeasable	Cannot be pacified or satisfied	Insatiable, relentless, unsatisfied
Unappeased	Not satisfied or calmed	Angry, upset, dissatisfied
Unappendaged	Lacking additional parts or appendages	Simple, unadorned, basic
Unappetising	Not appealing to the taste	Unappetizing, unpalatable, bland
Unappetizing	Not appealing or inviting	Unpleasant, bland, tasteless
Unapplied	Not put into practice	Theoretical, unused, dormant
Unapposable	Cannot be opposed or challenged	Indisputable, certain, irrefutable
Unappreciable	Too small to be noticed	Negligible, insignificant, minor
Unappreciated	Not fully understood or valued	Overlooked, undervalued, ignored
Unappreciative	Lacking gratitude	Thankless, ungrateful, indifferent
Unapprehended	Not captured or understood	Free, uncaught, unsolved
Unapprehensive	Not worried or fearful	Unconcerned, fearless, calm
Unapproachable	Not easy to approach or communicate with	Distant, aloof, inaccessible
Unapproached	Not approached or attempted	Untried, untouched, pristine
Unappropriate	Not suitable or fitting	Improper, unfitting, unsuitable
Unapproved	Not officially accepted	Unauthorized, rejected, disapproved
Unapt	Not suitable or inclined	Inappropriate, unsuitable, improper
Unapted	Not well-suited or fitted	Unfitted, unprepared, unsuited
Unarbitrary	Not random, based on reason	Reasonable, justified, logical
Unarguable	Cannot be argued against	Incontestable, irrefutable, undeniable
Unargued	Not debated or discussed	Undiscussed, unquestioned, uncontested
Unargumentative	Not inclined to argue	Agreeable, non-combative, peaceable
Unarisen	Not having arisen or come up	Unemerged, latent, dormant
Unaristocratic	Not relating to the aristocracy	Common, non-elite, plebeian
Unarmed	Not carrying weapons	Defenseless, weaponless, vulnerable
Unarmored	Not protected by armor	Exposed, defenseless, unshielded
Unarmoured	Not covered with armor	Unprotected, exposed, bare
Unaromatic	Not having a pleasant smell	Odorless, scentless, unscented
Unarranged	Not organized or ordered	Disordered, chaotic, untidy
Unarticulate	Not clearly expressed	Incoherent, unclear, mumbling
Unarticulated	Not expressed or specified	Implicit, vague, undeclared
Unartistic	Lacking artistic quality	Plain, unimaginative, uninspired
Unary	Consisting of a single element or component	Single, one-part, unitary
Unascendable	Not capable of being climbed	Inaccessible, unscalable, impassable
Unascendant	Not rising or dominant	Subordinate, lesser, inferior
Unascertainable	Not able to be determined	Indeterminable, unknowable, uncertain
Unascribable	Cannot be attributed to any source	Unattributable, vague, unidentified
Unashamed	Not feeling shame or embarrassment	Brazen, bold, unapologetic
Unasked	Not requested or invited	Uninvited, unsolicited, voluntary
Unasked-for	Not requested	Uninvited, unrequested, unsolicited
Unassailable	Cannot be attacked or challenged	Invincible, secure, unshakable
Unasserted	Not claimed or declared	Unstated, unexpressed, unspoken
Unassertive	Not showing confidence or force	Timid, passive, docile
Unassignable	Cannot be designated or attributed	Undistributable, unallocable, indisposable
Unassigned	Not allocated to anyone	Available, free, open
Unassimilable	Cannot be absorbed or integrated	Separate, distinct, incompatible
Unassisted	Not helped or supported	Independent, solo, unaided
Unassuming	Modest and humble	Humble, modest, down-to-earth
Unassured	Lacking confidence	Unsure, insecure, doubtful
Unasterisked	Not marked with an asterisk	Plain, unmarked, unnoted
Unattached	Not connected or joined	Free, separate, independent
Unattackable	Cannot be attacked	Invulnerable, secure, unassailable
Unattainable	Cannot be achieved or reached	Impossible, unreachable, inaccessible
Unattended	Not being looked after	Unsupervised, neglected, unaccompanied
Unattired	Not dressed	Naked, unclothed, undressed
Unattractive	Not pleasing to look at	Ugly, unappealing, unpleasant
Unattributable	Cannot be assigned to a source	Untraceable, anonymous, uncertain
Unauthentic	Not genuine or real	Fake, false, counterfeit
Unauthorised	Not officially allowed	Forbidden, unlawful, unapproved
Unauthorized	Not permitted by authority	Illegal, unapproved, prohibited
Unavailable	Not able to be used or accessed	Unreachable, inaccessible, absent
Unavailing	Not achieving the desired outcome	Fruitless, ineffective, futile
Unavenged	Not having received revenge	Forgiven, overlooked, pardoned
Unavoidable	Impossible to prevent	Inevitable, inescapable, certain
Unavowed	Not openly declared	Secret, hidden, undisclosed
Unawakened	Not roused from sleep	Asleep, dormant, unaware
Unaware	Not knowing about something	Ignorant, oblivious, unmindful
Unawed	Not impressed by anything	Unaffected, unimpressed, unshaken
Unbacked	Not supported by backing	Unsupported, unassisted, independent
Unbaffled	Not confused or puzzled	Clear-headed, certain, decisive
Unbalanced	Not evenly distributed or steady	Unsteady, unstable, uneven
Unbalconied	Without a balcony	Balcony-free, plain, balcony-less
Unbanded	Without bands or strips	Plain, unstriped, undecorated
Unbankable	Not acceptable to a bank	Non-negotiable, uncreditworthy, unprofitable
Unbaptised	Not having undergone baptism	Unchristened, heathen, unblessed
Unbaptized	Not initiated by baptism	Unchristened, heathen, uninitiated
Unbarbaric	Not barbaric; civilized	Civilized, refined, cultured
Unbared	Not exposed or uncovered	Covered, concealed, hidden
Unbargained	Not agreed upon	Unexpected, unforeseen, accidental
Unbarred	Without barriers or bars	Open, accessible, unobstructed
Unbarreled	Not stored in barrels	Loose, unpackaged, open
Unbarrelled	Not put into barrels	Loose, unpackaged, exposed
Unbearable	Too painful or unpleasant to endure	Intolerable, insufferable, unendurable
Unbeatable	Impossible to defeat	Invincible, supreme, undefeated
Unbeaten	Not defeated	Victorious, undefeated, unvanquished
Unbecoming	Not appropriate or attractive	Inappropriate, unsuitable, unflattering
Unbefitting	Not suitable or proper	Inappropriate, improper, unfitting
Unbeholden	Not owing thanks or duty	Independent, unbound, ungrateful
Unbeknown	Unknown; not known	Unaware, unperceived, undetected
Unbeknownst	Without someone's knowledge	Unknowingly, secretly, covertly
Unbelievable	Impossible to believe	Incredible, astonishing, inconceivable
Unbelieved	Not accepted as true	Disbelieved, doubted, unaccepted
Unbelieving	Not believing or showing disbelief	Skeptical, doubtful, incredulous
Unbeloved	Not loved or cherished	Unwanted, unloved, disregarded
Unbelted	Not secured with a belt	Loose, unfastened, unsecured
Unbendable	Not able to be bent	Rigid, inflexible, firm
Unbending	Not willing to change or compromise	Inflexible, firm, steadfast
Unbeneficed	Not holding a position with a church income	Unpaid, unsalaried, uncompensated
Unbent	Not bent; straightened	Straight, upright, unbowed
Unbiased	Without prejudice or favoritism	Impartial, fair, objective
Unbiassed	Another form of unbiased; impartial	Neutral, fair, even-handed
Unbidden	Without being asked or invited	Spontaneous, voluntary, unwelcome
Unbigoted	Without bigotry; tolerant	Open-minded, accepting, non-prejudiced
Unbitter	Without bitterness or resentment	Content, accepting, good-natured
Unbleached	Not whitened by chemicals	Natural, untreated, unwhitened
Unblemished	Without any flaws or marks	Perfect, flawless, pristine
Unblended	Not mixed or combined with anything else	Pure, unmixed, single
Unblessed	Not blessed or consecrated	Unholy, cursed, ungrateful
Unblinking	Showing no fear or hesitation	Steady, unwavering, unflinching
Unbloody	Without bloodshed or violence	Peaceful, nonviolent, gentle
Unblushing	Not feeling or showing shame or embarrassment	Brazen, shameless, bold
Unbodied	Not having a body or physical form	Ethereal, ghostly, spiritual
Unbolted	Not fastened or secured with a bolt	Unlocked, open, unfastened
Unbooked	Not reserved or booked	Available, free, open
Unbordered	Without borders or edges	Open, boundless, unlimited
Unborn	Not yet born	Future, nascent, pre-birth
Unbound	Not tied up or restrained	Free, untied, liberated
Unbounded	Without limits or boundaries	Limitless, boundless, infinite
Unbowed	Not bent or bowed down	Upright, unbent, unyielding
Unbraced	Not fastened or braced	Loose, unrestrained, unsecured
Unbrainwashed	Not manipulated or influenced	Independent, free-thinking, unswayed
Unbranched	Without branches or divisions	Simple, straight, direct
Unbranching	Not dividing into branches	Continuous, undivided, singular
Unbranded	Not marked with a brand	Generic, plain, unmarked
Unbreakable	Cannot be broken or damaged	Durable, indestructible, shatterproof
Unbridgeable	Impossible to bridge or connect	Impassable, unpassable, insurmountable
Unbridled	Not controlled or restrained	Unrestrained, unchecked, wild
Unbroken	Not fractured or interrupted	Whole, intact, continuous
Unbrushed	Not brushed or cleaned	Messy, untidy, unkempt
Unburdened	Not carrying a burden	Free, relieved, untroubled
Unburied	Not buried or interred	Exposed, aboveground, unlaid
Unburnished	Not polished or shiny	Dull, rough, unpolished
Unbuttoned	Not fastened with buttons	Open, loose, undone
Uncamphorated	Not treated with camphor	Untreated, uncamphored, natural
Uncanny	Strange or mysterious	Eerie, peculiar, supernatural
Uncapped	Without a cap or cover	Open, uncovered, exposed
Uncarbonated	Not containing carbon dioxide gas	Flat, still, non-fizzy
Uncaring	Without concern or empathy	Indifferent, unfeeling, apathetic
Uncarpeted	Without carpeting	Bare, uncovered, exposed
Uncarved	Not carved or shaped	Plain, unshaped, natural
Uncastrated	Not castrated or altered	Intact, unaltered, whole
Uncategorised	Not placed in a category	Unclassified, unsorted, general
Uncategorized	Not categorized or classified	Unsorted, unclassified, undefined
Uncaulked	Not sealed with caulk	Unsealed, open, leaking
Uncaused	Not having a cause or reason	Random, aimless, unprovoked
Unceasing	Not stopping; continuous	Incessant, constant, endless
Uncensored	Not edited or censored	Raw, uncut, unrestricted
Unceremonial	Not formal or ceremonious	Casual, informal, relaxed
Unceremonious	Done without ceremony	Blunt, abrupt, impolite
Uncertain	Not sure or confident	Doubtful, unsure, ambiguous
Uncertified	Not officially recognized	Unofficial, unlicensed, unsanctioned
Unchained	Not bound by chains	Free, unbound, unrestricted
Unchallengeable	Impossible to challenge	Undeniable, indisputable, irrefutable
Unchallenged	Not disputed or opposed	Accepted, unquestioned, undisputed
Unchangeable	Not able to be changed	Fixed, permanent, immutable
Unchanged	Not altered or modified	Same, consistent, stable
Unchanging	Not changing; remaining constant	Constant, fixed, enduring
Uncharacteristic	Not typical or usual	Atypical, unusual, unexpected
Uncharged	Without an electric charge	Neutral, uncharged, balanced
Uncharitable	Lacking generosity or kindness	Stern, unkind, ungenerous
Uncharted	Not mapped or surveyed	Unknown, unexplored, unmarked
Unchartered	Not having a charter	Unofficial, unsanctioned, unauthorized
Uncheckable	Not capable of being checked or controlled	Unrestrainable, unstoppable, unrestrained
Unchecked	Not restrained or controlled	Unrestricted, uncontrolled, unrestrained
Uncheerful	Not cheerful; lacking joy	Gloomy, somber, melancholic
Unchewable	Not easy to chew	Hard, tough, inedible
Unchivalrous	Lacking courtesy or gallantry	Rude, ungentlemanly, impolite
Unchristian	Not conforming to Christian principles	Irreligious, ungodly, heathen
Unchristlike	Not resembling Christ-like qualities	Unholy, ungodly, immoral
Uncial	In an uncial script style (historical writing style)	Stylized, ancient, uppercase
Uncivil	Not polite or courteous	Rude, impolite, discourteous
Uncivilized	Lacking civilization or culture	Barbaric, primitive, savage
Unclad	Not dressed or covered	Naked, bare, exposed
Unclaimed	Not claimed or owned	Unowned, unpossessed, abandoned
Unclassifiable	Unable to be classified	Incomparable, unique, indefinable
Unclassified	Not classified or categorized	Unsorted, uncategorized, undetermined
Unclean	Not clean; dirty	Dirty, impure, contaminated
Uncleanly	Not done in a clean manner	Messy, sloppy, untidy
Unclear	Not clear or understandable	Vague, ambiguous, obscure
Uncleared	Not cleared or resolved	Pending, unresolved, uncleansed
Unclimbable	Unable to be climbed	Inaccessible, impassable, steep
Unclipped	Not cut or trimmed	Untrimmed, rough, natural
Unclogged	Free from blockages	Clear, unblocked, open
Unclothed	Not wearing clothes	Naked, undressed, exposed
Unclouded	Clear; not cloudy	Transparent, bright, pure
Uncluttered	Not cluttered; organized	Neat, tidy, organized
Uncoated	Without a protective coating	Uncovered, bare, exposed
Uncoiled	Not in a coil	Straight, loose, relaxed
Uncollected	Not gathered or collected	Untidy, scattered, abandoned
Uncollectible	Unable to be collected	Unrecoverable, irrecoverable, lost
Uncolored	Without color	Colorless, plain, neutral
Uncoloured	Without color (British spelling)	Colorless, plain, neutral
Uncolumned	Lacking columns	Open, unstructured, unsupported
Uncombable	Not capable of being combed	Messy, untidy, tangled
Uncombed	Not combed	Messy, tangled, unkempt
Uncombined	Not combined or mixed	Separate, distinct, pure
Uncomely	Not attractive or pleasant	Unattractive, plain, homely
Uncomfortable	Causing discomfort	Uneasy, awkward, unpleasant
Uncommercial	Not suitable for commerce	Non-commercial, private, personal
Uncommercialised	Not made commercial	Unexploited, non-commercial, private
Uncommercialized	Not made commercial	Unexploited, non-commercial, private
Uncommitted	Not committed to anything	Neutral, indifferent, uninvolved
Uncommon	Not common; rare	Unusual, rare, exceptional
Uncommunicative	Not inclined to talk or communicate	Silent, reserved, taciturn
Uncomparable	Unable to be compared	Incomparable, unique, unmatched
Uncompartmented	Not divided into compartments	Open, undivided, whole
Uncompassionate	Not compassionate; unkind	Insensitive, indifferent, unkind
Uncompensated	Not compensated or paid	Unpaid, unrewarded, uncompensated
Uncompetitive	Not inclined to compete	Non-competitive, indifferent, apathetic
Uncomplaining	Not complaining; patient	Tolerant, enduring, unprotesting
Uncomplete	Not complete	Incomplete, unfinished, partial
Uncompleted	Not finished	Unfinished, partial, incomplete
Uncomplicated	Simple; not complex	Simple, straightforward, basic
Uncomplimentary	Not flattering or complimentary	Critical, disparaging, unkind
Uncompounded	Not mixed or combined	Pure, separate, single
Uncomprehended	Not understood	Misunderstood, unclear, ungrasped
Uncomprehending	Lacking understanding	Confused, bewildered, ignorant
Uncomprehensible	Unable to be comprehended	Incomprehensible, confusing, unclear
Uncompromising	Not willing to compromise	Stubborn, rigid, inflexible
Unconcealed	Not hidden or concealed	Visible, open, apparent
Unconcerned	Not worried or concerned	Indifferent, casual, nonchalant
Unconditional	Without any conditions	Absolute, unrestricted, total
Unconditioned	Not subject to conditions	Free, unrestricted, unrestrained
Unconfessed	Not admitted or confessed	Secret, undisclosed, hidden
Unconfined	Not confined or restricted	Free, unrestricted, unbounded
Unconfirmed	Not confirmed or verified	Unproven, uncertain, tentative
Unconformable	Not conformable or compliant	Nonconformist, independent, rebellious
Unconformist	Not conforming to standard practices	Nonconformist, unconventional, rebellious
Unconfused	Not confused; clear-headed	Clear, certain, understanding
Uncongenial	Not friendly or pleasant	Unfriendly, disagreeable, incompatible
Unconnected	Not joined or linked	Separate, detached, unrelated
Unconquerable	Unable to be conquered	Invincible, indomitable, unbeatable
Unconquered	Not defeated or subdued	Invincible, undefeated, unconquerable
Unconscientious	Lacking conscientiousness; careless	Careless, negligent, thoughtless
Unconscionable	Not guided by conscience; unethical	Immoral, unethical, unscrupulous
Unconscious	Not aware or awake	Insensible, unaware, oblivious
Unconsecrated	Not holy or dedicated to religious use	Profane, secular, desecrated
Unconsidered	Not thought about or disregarded	Ignored, overlooked, neglected
Unconsolable	Impossible to comfort	Inconsolable, heartbroken, devastated
Unconsolidated	Not combined into a whole	Unmerged, separate, fragmented
Unconstipated	Not constipated; free-moving	Regular, free, unblocked
Unconstitutional	Not in accordance with a constitution	Illegal, unlawful, unauthorized
Unconstrained	Free from constraints or restrictions	Free, unrestricted, unlimited
Unconstricted	Not constricted; free	Free-flowing, unrestricted, open
Unconstructive	Not helpful or productive	Unhelpful, negative, obstructive
Unconsumed	Not consumed or used up	Remaining, unused, leftover
Unconsummated	Not completed or fulfilled	Unfinished, incomplete, unrealized
Uncontainable	Not capable of being contained	Unrestrainable, uncontrollable, boundless
Uncontaminated	Not tainted or polluted	Pure, clean, pristine
Uncontaminating	Not contaminating or harmful	Safe, harmless, benign
Uncontested	Not disputed or challenged	Accepted, acknowledged, undisputed
Uncontrived	Not artificial or forced	Natural, genuine, unplanned
Uncontrollable	Unable to be controlled	Unmanageable, uncontrollable, wild
Uncontrolled	Not under control	Chaotic, rampant, unrestrained
Uncontroversial	Not causing controversy	Accepted, neutral, non-controversial
Unconventional	Not conforming to usual standards	Unorthodox, unusual, unique
Unconverted	Not converted; unchanged	Original, intact, unaltered
Unconvertible	Unable to be converted	Fixed, unchangeable, rigid
Unconvinced	Not persuaded	Doubtful, skeptical, unconvinced
Unconvincing	Not convincing	Doubtful, weak, ineffective
Uncooked	Not cooked or prepared	Raw, fresh, underdone
Uncooperative	Not willing to cooperate	Unhelpful, unwilling, obstructive
Uncoordinated	Lacking coordination	Clumsy, unsteady, awkward
Uncordial	Not friendly or warm	Cold, distant, unfriendly
Uncorrectable	Not capable of being corrected	Irreparable, incurable, permanent
Uncorrected	Not corrected or fixed	Flawed, unchanged, unaltered
Uncorrelated	Not having a relationship or correlation	Independent, unrelated, disconnected
Uncorroborated	Not confirmed or supported by evidence	Unverified, unconfirmed, unsupported
Uncorrupted	Not corrupted or tainted	Pure, honest, clean
Uncounted	Not counted or tallied	Untallied, innumerable, unlimited
Uncoupled	Not joined or connected	Separated, detached, unlinked
Uncousinly	Not showing familial kindness	Unfriendly, distant, cold
Uncouth	Not refined; lacking manners	Rude, crude, unsophisticated
Uncovered	Not covered; exposed	Exposed, open, revealed
Uncrannied	Without cracks or crevices	Solid, unbroken, intact
Uncreased	Not creased or wrinkled	Flat, smooth, unwrinkled
Uncreative	Lacking creativity	Unimaginative, uninspired, dull
Uncritical	Not critical or judgmental	Accepting, lenient, tolerant
Uncropped	Not cut or trimmed	Uncut, untouched, natural
Uncrossed	Not crossed or intersected	Straight, direct, parallel
Uncrowded	Not filled or packed with people	Spacious, open, empty
Uncrowned	Not officially recognized as a king or queen	Unthroned, uninstalled, dethroned
Uncrystallised	Not formed into crystals	Amorphous, non-crystalline, shapeless
Uncrystallized	Not having formed crystals	Amorphous, non-crystalline, undefined
Unctuous	Excessively flattering; oily	Sycophantic, ingratiating, insincere
Uncultivable	Not capable of being cultivated	Barren, infertile, unproductive
Uncultivatable	Impossible to cultivate	Arid, sterile, uncultivable
Uncultivated	Not prepared for crops	Wild, untilled, untouched
Uncultured	Lacking refinement or taste	Unrefined, coarse, unpolished
Uncurable	Not able to be cured	Incurable, terminal, untreatable
Uncurbed	Not restrained or controlled	Unchecked, unrestricted, free
Uncured	Not treated or preserved	Fresh, raw, untreated
Uncurled	Not curled or coiled	Straight, unfurled, flattened
Uncurtained	Not covered with curtains	Exposed, open, bare
Uncurved	Not curved; straight	Straight, linear, unbent
Uncurving	Not curving or bending	Straight, rigid, inflexible
Uncut	Not trimmed or shortened	Whole, entire, intact
Undamaged	Not harmed or broken	Intact, unbroken, whole
Undatable	Unable to be dated	Timeless, ageless, ancient
Undated	Not marked with a date	Timeless, undated, unmarked
Undaunted	Not discouraged by difficulty	Fearless, brave, resolute
Undeceived	Not misled or deceived	Enlightened, aware, informed
Undecided	Not having made a decision	Unresolved, unsure, uncertain
Undecipherable	Impossible to interpret or understand	Indecipherable, cryptic, unclear
Undeciphered	Not decoded or interpreted	Unread, unexamined, unexplored
Undeclared	Not officially announced	Unstated, hidden, unofficial
Undecomposable	Not able to be decomposed	Indissoluble, stable, non-decomposable
Undecomposed	Not broken down or decayed	Whole, intact, unaltered
Undecorated	Not adorned or decorated	Plain, simple, unadorned
Undedicated	Not dedicated or committed	Uncommitted, indifferent, unattached
Undefeated	Not defeated or beaten	Victorious, unbeaten, invincible
Undefendable	Not capable of being defended	Indefensible, vulnerable, unjustifiable
Undefended	Not protected or guarded	Unprotected, exposed, vulnerable
Undeferential	Lacking respect or deference	Disrespectful, impudent, rude
Undefiled	Not tainted or polluted	Pure, pristine, unblemished
Undefinable	Not able to be defined or described	Vague, indescribable, elusive
Undefined	Not clearly defined or determined	Ambiguous, vague, indeterminate
Undelineated	Not marked or outlined	Unmarked, shapeless, undefined
Undemanding	Not requiring much effort or attention	Easy, simple, effortless
Undemocratic	Not in accordance with democratic principles	Authoritarian, autocratic, undemocratic
Undemonstrative	Not showing feelings openly	Reserved, reticent, restrained
Undeniable	Unable to be denied or disputed	Indisputable, evident, unquestionable
Undenominational	Not related to a specific denomination	Nonsectarian, universal, all-inclusive
Undependable	Not reliable or trustworthy	Unreliable, erratic, unpredictable
Undepicted	Not shown or represented visually	Unrepresented, unseen, invisible
Under	Situated beneath or lower in position	Beneath, below, lower
Underactive	Not active enough	Sluggish, slow, hypoactive
Underage	Below the legal age	Minor, juvenile, young
Underarm	Relating to the armpit	Axillary, subaxillary, armpit-related
Underbred	Of low breeding or poor background	Ill-bred, uncultured, unrefined
Underclothed	Not wearing enough clothing	Scantily dressed, lightly dressed, uncovered
Undercoated	Having an underlayer of coating	Primed, base-coated, prepared
Undercooked	Not cooked thoroughly	Rare, underdone, raw
Underdeveloped	Not fully developed	Immature, incomplete, primitive
Underdone	Insufficiently cooked	Rare, undercooked, lightly done
Underdressed	Wearing clothing that is too casual for an occasion	Casually dressed, informally dressed, insufficiently dressed
Undereducated	Having less education than average	Uneducated, poorly educated, unschooled
Underemployed	Working below one's skill level or part-time	Underutilized, part-time, underused
Underfed	Not sufficiently fed	Malnourished, starved, hungry
Underhanded	Secretive or deceitful	Sneaky, sly, dishonest
Underhung	Having a structure that extends downward	Low-set, drooping, sagging
Underivative	Not derived from something else	Original, unique, foundational
Underived	Not taken or derived from another source	Original, primary, independent
Underlying	Existing beneath the surface	Fundamental, hidden, basic
Undermanned	Having fewer staff than needed	Short-staffed, understaffed, inadequately staffed
Undermentioned	Mentioned later in a document	Later-mentioned, subsequently noted, cited below
Undernourished	Not having enough food or nutrients	Malnourished, underfed, emaciated
Underpopulated	Having fewer people than is normal or desirable	Sparsely populated, thinly settled, depopulated
Underprivileged	Lacking basic resources	Deprived, disadvantaged, poor
Underqualified	Not having the required qualifications	Inadequately trained, unqualified, inexperienced
Underrated	Underestimated in value or ability	Undervalued, unappreciated, overlooked
Undersealed	Protected with a seal underneath	Sealed, protected, treated
Undersexed	Lacking in sexual desire or activity	Sexually inactive, low libido, celibate
Undershot	Positioned lower than expected	Low, beneath, under
Undersize	Smaller than the usual size	Small, undersized, petite
Undersized	Below the typical size	Small, miniature, tiny
Underslung	Suspended or positioned beneath	Low-hung, suspended, hanging
Understaffed	Not having enough staff	Short-staffed, undermanned, inadequate
Understandable	Capable of being understood	Comprehensible, clear, intelligible
Understanding	Sympathetic and aware	Compassionate, kind, perceptive
Understated	Subtle and not obvious	Subtle, restrained, low-key
Understood	Agreed upon or known	Accepted, agreed, acknowledged
Underweight	Weighing less than is healthy	Thin, lightweight, slim
Undescended	Not descended or fallen	Not lowered, retained, unmoved
Undescriptive	Not descriptive or lacking details	Vague, non-descriptive, unclear
Undeserved	Not merited or warranted	Unwarranted, unjustified, unearned
Undeserving	Not worthy of something	Unworthy, unmerited, undeserving
Undesigned	Not planned or intentional	Unplanned, accidental, unintended
Undesirable	Not wanted or attractive	Unwanted, unpleasant, unfavorable
Undesired	Not desired or wished for	Unwanted, unwished, unsolicited
Undesiring	Not desiring	Indifferent, apathetic, disinterested
Undesirous	Not having a desire for something	Indifferent, uninterested, apathetic
Undestroyable	Impossible to destroy	Indestructible, unbreakable, durable
Undetectable	Impossible to detect	Invisible, hidden, unseen
Undetected	Not detected or discovered	Unnoticed, unseen, hidden
Undeterminable	Not able to be determined	Indefinable, unknown, unclear
Undetermined	Not yet decided or resolved	Pending, unresolved, unknown
Undeterred	Not discouraged or dissuaded	Persistent, unwavering, determined
Undeveloped	Not fully grown or developed	Immature, incomplete, basic
Undeviating	Not changing or departing from	Consistent, unwavering, steady
Undiagnosable	Not able to be diagnosed	Indeterminate, unclear, inconclusive
Undiagnosed	Not diagnosed	Unidentified, unknown, untreated
Undifferentiated	Not different or lacking distinction	Uniform, homogenous, similar
Undigested	Not digested	Unprocessed, whole, undissolved
Undignified	Not showing dignity	Shameful, improper, unworthy
Undiluted	Not diluted or watered down	Pure, concentrated, full-strength
Undiminished	Not lessened or reduced	Intact, whole, unweakened
Undimmed	Not dimmed or faded	Bright, clear, vivid
Undiplomatic	Lacking tact or sensitivity	Blunt, tactless, insensitive
Undirected	Not guided or directed	Random, aimless, unguided
Undiscerning	Lacking insight or judgment	Unperceptive, unwise, naive
Undischarged	Not released or fulfilled	Pendent, incomplete, pending
Undisciplined	Lacking discipline or control	Uncontrolled, unruly, chaotic
Undisclosed	Not revealed or made known	Hidden, secret, private
Undiscouraged	Not discouraged or disheartened	Determined, resolute, steadfast
Undiscoverable	Impossible to find or uncover	Untraceable, hidden, elusive
Undiscovered	Not yet found or known	Unknown, unexplored, hidden
Undiscriminating	Lacking careful judgment	Indiscriminate, naive, unselective
Undisguised	Not concealed or hidden	Obvious, open, plain
Undismayed	Not disheartened or discouraged	Unfazed, unbothered, resolute
Undisputable	Cannot be questioned or doubted	Indisputable, undeniable, certain
Undisputed	Accepted without question	Agreed, acknowledged, unchallenged
Undissolved	Not dissolved or broken down	Solid, intact, whole
Undistinguishable	Not able to be identified as different	Indistinct, identical, similar
Undistinguished	Not marked by distinction	Ordinary, unremarkable, plain
Undistorted	Not twisted or altered	Clear, accurate, true
Undistributed	Not spread or allocated	Unallocated, withheld, retained
Undisturbed	Not interrupted or bothered	Peaceful, quiet, calm
Undiversified	Lacking variety or diversity	Uniform, homogenous, similar
Undividable	Cannot be divided	Indivisible, whole, unified
Undivided	Not divided or separated	Whole, complete, unified
Undoable	Capable of being undone	Reversible, fixable, correctable
Undocumented	Not supported by written records	Unrecorded, unverified, unregistered
Undogmatic	Not adhering to strict beliefs	Flexible, open-minded, adaptable
Undogmatical	Not dogmatic	Liberal, tolerant, nonrigid
Undomestic	Not related to home or family	Wild, feral, non-domestic
Undomesticated	Not tamed or domesticated	Wild, untamed, feral
Undone	Not done or finished	Incomplete, unfinished, pending
Undoubted	Not questioned or doubted	Certain, sure, indisputable
Undrained	Not emptied of liquid	Full, saturated, waterlogged
Undramatic	Not dramatic or exciting	Ordinary, plain, simple
Undraped	Not covered with drapes or fabric	Exposed, bare, uncovered
Undrawn	Not pulled or drawn	Unpulled, relaxed, at rest
Undreamed	Not imagined or thought of	Unexpected, unimaginable, surprising
Undreamt	Not dreamed or imagined	Unforeseen, unbelievable, unthought-of
Undressed	Not dressed or clothed	Naked, unclothed, bare
Undried	Not dried	Wet, damp, moist
Undrinkable	Not suitable for drinking	Inedible, contaminated, nonpotable
Undue	Excessive or unwarranted	Unjustified, unnecessary, extreme
Undulant	Having a wavy form or motion	Wavy, rolling, undulating
Undulate	To move in a wave-like motion	Wave-like, flowing, oscillating
Undulatory	Having a wave-like motion	Wavy, rippling, rolling
Undutiful	Not fulfilling one's duties	Disobedient, negligent, irresponsible
Undyed	Not colored with dye	Natural, plain, uncolored
Undying	Never-ending or eternal	Immortal, perpetual, endless
Undynamic	Lacking energy or vigor	Inactive, lifeless, sluggish
Uneager	Not eager or enthusiastic	Reluctant, unenthusiastic, indifferent
Unearned	Not gained by effort	Unwarranted, undeserved, unmerited
Unearthed	Brought to light or discovered	Discovered, exposed, revealed
Unearthly	Not of this world; strange	Supernatural, eerie, otherworldly
Uneasy	Feeling discomfort or anxiety	Uncomfortable, restless, anxious
Uneatable	Not fit to be eaten	Inedible, unpalatable, indigestible
Uneconomic	Not economical or cost-effective	Wasteful, inefficient, impractical
Uneconomical	Not saving money or resources	Wasteful, costly, inefficient
Unedifying	Not morally or intellectually improving	Uninspiring, dull, uninteresting
Unedited	Not edited or revised	Raw, uncut, original
Uneducated	Lacking education or knowledge	Ignorant, unlearned, uninformed
Uneffective	Not producing a desired effect	Ineffective, unproductive, useless
Unelaborate	Not detailed or intricate	Simple, basic, plain
Unelaborated	Not developed or detailed	Basic, simple, undeveloped
Unembarrassed	Not feeling or showing embarrassment	Confident, unashamed, unapologetic
Unembellished	Not decorated or adorned	Plain, simple, unadorned
Unembodied	Not having a physical form	Disembodied, intangible, incorporeal
Unemotional	Not showing or feeling emotions	Apathetic, detached, indifferent
Unemphatic	Lacking emphasis or force	Weak, subtle, muted
Unemployable	Not suitable for employment	Ineligible, jobless, unqualified
Unemployed	Not currently holding a job	Jobless, out of work, idle
Unenclosed	Not enclosed or contained	Open, unconfined, free
Unencouraging	Not providing support or confidence	Discouraging, disheartening, demotivating
Unencumbered	Not burdened or restricted	Free, unburdened, unrestricted
Unended	Not finished or concluded	Ongoing, continuous, perpetual
Unending	Having no end or limit	Infinite, endless, perpetual
Unendowed	Not provided with qualities or attributes	Deprived, lacking, unequipped
Unendurable	Impossible to endure	Intolerable, unbearable, insufferable
Unenergetic	Lacking energy or enthusiasm	Lethargic, sluggish, listless
Unenforceable	Not capable of being enforced	Impractical, unenactable, inapplicable
Unenforced	Not imposed or executed	Neglected, ignored, unimplemented
Unengaged	Not involved or committed	Detached, uninvolved, indifferent
Unenlightened	Lacking knowledge or awareness	Ignorant, uninformed, unaware
Unenlightening	Not providing new information	Uninformative, unhelpful, uninstructive
Unenlivened	Not made lively or animated	Dull, lifeless, unexciting
Unenterprising	Lacking initiative or ambition	Lazy, unmotivated, passive
Unenthusiastic	Not showing enthusiasm or excitement	Indifferent, apathetic, disinterested
Unentitled	Not having the right or claim to something	Unqualified, unauthorized, disallowed
Unenviable	Not desirable or worthy of envy	Unattractive, undesirable, regrettable
Unequal	Not the same in size, value, or quality	Disparate, uneven, unbalanced
Unequaled	Without equal; unmatched	Incomparable, unparalleled, superior
Unequalised	Not made equal	Unbalanced, uneven, unmatched
Unequalized	Not equalized or balanced	Disparate, inconsistent, uneven
Unequalled	Not equaled or surpassed	Incomparable, unmatched, supreme
Unequipped	Not equipped or prepared	Unprepared, unarmed, lacking
Unequivocal	Leaving no doubt; clear	Clear, unambiguous, definite
Unerasable	Not capable of being erased	Permanent, indelible, enduring
Unerect	Not upright or raised	Flat, fallen, collapsed
Unerring	Always accurate or correct	Infallible, flawless, precise
Unessential	Not essential or necessary	Optional, nonessential, extraneous
Unestablished	Not established or proven	Unconfirmed, unsettled, uncertain
Unethical	Not morally correct	Immoral, dishonest, improper
Uneven	Not level or smooth	Rough, irregular, jagged
Uneventful	Lacking significant events	Quiet, calm, dull
Unexacting	Not demanding or challenging	Easygoing, lenient, undemanding
Unexampled	Without precedent or example	Unique, unparalleled, unprecedented
Unexceeded	Not surpassed	Unmatched, unbeaten, peerless
Unexcelled	Not bettered by anyone or anything	Unparalleled, unrivaled, supreme
Unexceptionable	Not open to objection	Flawless, perfect, impeccable
Unexceptional	Not exceptional or outstanding	Ordinary, average, standard
Unexchangeable	Not capable of being exchanged	Fixed, non-transferable, static
Unexcitable	Not easily excited	Calm, composed, reserved
Unexcited	Not showing excitement	Apathetic, indifferent, unmoved
Unexciting	Not stimulating or interesting	Dull, boring, monotonous
Unexclusive	Not exclusive or limited	Inclusive, accessible, open
Unexcused	Not excused or justified	Unforgiven, overlooked, ignored
Unexhausted	Not depleted or worn out	Fresh, renewed, undiminished
Unexpansive	Not willing to expand or elaborate	Reserved, reticent, tight-lipped
Unexpected	Not expected or anticipated	Surprising, unforeseen, sudden
Unexpendable	Not expendable; essential	Indispensable, crucial, vital
Unexpended	Not used or spent	Unused, conserved, retained
Unexpired	Still valid or active	Ongoing, active, unended
Unexplainable	Not able to be explained	Mysterious, puzzling, enigmatic
Unexplained	Without explanation	Mysterious, unknown, unresolved
Unexploded	Not detonated	Intact, live, undetonated
Unexploited	Not utilized to its full potential	Untapped, unused, dormant
Unexplorative	Not tending to explore or investigate	Uninquisitive, incurious, uninterested
Unexploratory	Not inclined to explore or research	Uninvestigative, non-explorative, passive
Unexplored	Not examined or investigated	Untouched, unknown, uncharted
Unexportable	Not suitable or allowed for export	Non-exportable, restricted, limited
Unexpressed	Not communicated or put into words	Unspoken, implicit, hidden
Unexpressible	Impossible to express	Inexpressible, indescribable, ineffable
Unexpressive	Lacking expression or emotion	Emotionless, blank, neutral
Unexpurgated	Not censored or edited	Unedited, complete, uncensored
Unextended	Not expanded or stretched out	Contracted, shortened, compressed
Unfaceted	Without facets or angles	Flat, smooth, plain
Unfading	Not losing brightness or strength	Enduring, permanent, lasting
Unfailing	Never failing; reliable	Dependable, constant, unwavering
Unfair	Not fair or just	Biased, unjust, partial
Unfaithful	Not loyal or faithful	Disloyal, untrustworthy, unreliable
Unfaltering	Steady and resolute; unwavering	Determined, steadfast, persistent
Unfamiliar	Not known or recognized	Unknown, strange, foreign
Unfashionable	Not in accordance with current fashion	Outdated, old-fashioned, unfashioned
Unfastened	Not secured or closed	Loose, open, unbuckled
Unfastidious	Not demanding or particular	Easygoing, undemanding, relaxed
Unfathomable	Impossible to understand	Incomprehensible, deep, inscrutable
Unfathomed	Not fully explored or understood	Unknown, uncharted, mysterious
Unfattened	Not made fat or plump	Lean, slim, thin
Unfavorable	Not favorable or approving	Negative, adverse, hostile
Unfavourable	British spelling of "Unfavorable"	Negative, adverse, hostile
Unfearing	Not afraid or fearful	Brave, fearless, bold
Unfeasible	Not practical or possible	Impractical, unattainable, unworkable
Unfeathered	Lacking feathers	Featherless, bare, plucked
Unfed	Not fed or nourished	Hungry, starved, fasting
Unfeeling	Lacking emotion or sympathy	Insensitive, cold, indifferent
Unfeigned	Genuine and sincere	Real, authentic, true
Unfeminine	Not characteristic of a woman	Masculine, rough, tomboyish
Unfermented	Not subjected to fermentation	Raw, fresh, natural
Unfertile	Not capable of producing vegetation	Barren, unproductive, sterile
Unfertilised	British spelling of "Unfertilized"	Infertile, unproductive, barren
Unfertilized	Not fertilized	Infertile, unproductive, barren
Unfettered	Not restricted or restrained	Free, unbound, unrestricted
Unfilled	Not filled	Empty, hollow, unoccupied
Unfilmed	Not recorded on film	Unrecorded, undocumented, unseen
Unfinished	Not completed	Incomplete, pending, ongoing
Unfirm	Not firm or solid	Weak, unsteady, unstable
Unfit	Not suitable or proper	Inappropriate, unsuitable, inadequate
Unfitting	Not fitting or appropriate	Inappropriate, unsuitable, unfitting
Unfixed	Not fixed or permanent	Loose, temporary, movable
Unflagging	Persistent and tireless	Unwavering, determined, constant
Unflappable	Not easily upset or agitated	Calm, composed, collected
Unflattering	Not complimentary or favorable	Critical, disparaging, unfavorable
Unflavored	Lacking flavor or taste	Bland, tasteless, plain
Unflavoured	British spelling of "Unflavored"	Bland, tasteless, plain
Unflawed	Without defects or imperfections	Perfect, impeccable, flawless
Unfledged	Not fully developed or matured	Immature, inexperienced, young
Unflinching	Showing no fear or hesitation	Resolute, brave, steadfast
Unfluctuating	Not varying or changing	Consistent, steady, stable
Unflurried	Not agitated or excited	Calm, composed, serene
Unflustered	Not agitated or confused	Calm, collected, composed
Unfocused	Not having a clear aim or focus	Distracted, aimless, unclear
Unfocussed	British spelling of "Unfocused"	Distracted, aimless, unclear
Unfolded	Not folded; spread out	Open, expanded, spread
Unforbearing	Not patient or tolerant	Impatient, intolerant, short-tempered
Unforced	Natural and not compelled	Spontaneous, genuine, relaxed
Unforceful	Lacking force or strength	Weak, feeble, gentle
Unforeseeable	Not able to be anticipated or predicted	Unpredictable, unexpected, uncertain
Unforeseen	Not anticipated or expected	Unexpected, surprising, sudden
Unforesightful	Lacking foresight or planning	Short-sighted, imprudent, impulsive
Unforested	Not covered by forest or trees	Bare, treeless, open
Unforethoughtful	Lacking prior thought or consideration	Impulsive, unplanned, rash
Unforfeitable	Not subject to being forfeited	Secure, protected, inalienable
Unforgettable	So remarkable as to be impossible to forget	Memorable, lasting, impressive
Unforgivable	Not able to be forgiven or excused	Inexcusable, intolerable, unpardonable
Unforgiving	Not willing to forgive or show mercy	Harsh, merciless, relentless
Unformed	Not fully developed or shaped	Incomplete, immature, rudimentary
Unfortunate	Having bad luck or unfavorable outcomes	Unlucky, regrettable, adverse
Unfounded	Having no basis in fact or reality	Baseless, groundless, unsupported
Unframed	Not surrounded by a frame or border	Borderless, plain, simple
Unfree	Not free or independent	Restricted, constrained, bound
Unfrequented	Rarely visited or used	Isolated, deserted, quiet
Unfretted	Not worried or anxious	Calm, composed, undisturbed
Unfriendly	Not kind or pleasant	Hostile, cold, antagonistic
Unfrightened	Not feeling fear	Brave, fearless, bold
Unfrosted	Not covered with frost or icing	Plain, bare, natural
Unfrozen	No longer frozen or solid	Thawed, melted, soft
Unfruitful	Not producing good results	Barren, unproductive, sterile
Unfueled	Not supplied with fuel	Empty, depleted, unfed
Unfulfilled	Not completed or satisfied	Incomplete, unsatisfied, unrealized
Unfunctional	Not functioning properly	Dysfunctional, broken, ineffective
Unfunded	Not provided with funds or financial support	Unsupported, unpaid, unfunded
Unfunny	Not amusing or humorous	Dull, serious, unamusing
Unfurnished	Not supplied with furniture	Empty, bare, vacant
Unfurrowed	Not having furrows or grooves	Flat, smooth, even
Ungainly	Awkward and clumsy	Clumsy, awkward, ungraceful
Ungallant	Not polite or chivalrous	Rude, discourteous, impolite
Ungarbed	Not clothed or dressed	Naked, bare, undressed
Ungarmented	Not wearing garments	Undressed, naked, unclothed
Ungathered	Not collected or assembled	Scattered, dispersed, unassembled
Ungeared	Not equipped with gears	Disengaged, idle, inactive
Ungenerous	Not generous or giving	Stingy, miserly, selfish
Ungentle	Not kind or mild	Harsh, rough, severe
Ungentlemanlike	Not behaving like a gentleman	Rude, ungallant, improper
Ungentlemanly	Not characteristic of a gentleman	Impolite, unchivalrous, crude
Ungetatable	Difficult to reach or access	Inaccessible, unreachable, remote
Unglamorous	Not attractive or stylish	Plain, simple, ordinary
Unglamourous	Alternate spelling of "Unglamorous"	Plain, simple, ordinary
Unglazed	Not covered with a glaze	Matte, rough, unpolished
Unglued	Not held together by glue	Detached, loose, separate
Ungodly	Not reverent or pious	Irreligious, sinful, profane
Ungovernable	Not able to be controlled or governed	Uncontrollable, unruly, wild
Ungoverned	Not controlled or regulated	Unregulated, uncontrolled, unchecked
Ungraceful	Lacking grace or elegance	Clumsy, awkward, unrefined
Ungracious	Not courteous or polite	Rude, discourteous, impolite
Ungraded	Not assigned a grade or rank	Unranked, unclassified, unassessed
Ungrammatical	Not following grammar rules	Incorrect, erroneous, flawed
Ungrasped	Not held or understood	Missed, overlooked, misunderstood
Ungrateful	Not showing gratitude	Thankless, unappreciative, selfish
Ungratified	Not satisfied or fulfilled	Unfulfilled, unsatisfied, discontented
Ungratifying	Not giving satisfaction	Unsatisfying, disappointing, unrewarding
Ungreased	Not lubricated or oiled	Dry, rough, unlubricated
Ungregarious	Not sociable or outgoing	Introverted, solitary, shy
Ungroomed	Not well-kept or groomed	Messy, disheveled, untidy
Ungrudging	Given or done willingly	Generous, willing, wholehearted
Ungual	Relating to the nails or claws	Nail-like, claw-like, onychial
Unguaranteed	Not guaranteed or assured	Uncertain, unsecured, risky
Unguarded	Not protected or watched	Unprotected, exposed, defenseless
Unguiculate	Having claws or nails	Clawed, nail-bearing, taloned
Unguiculated	Equipped with claws or nails	Clawed, taloned, nail-bearing
Unguided	Not having guidance or direction	Directionless, aimless, unsteered
Ungulate	Having hooves	Hoofed, hoof-bearing, unguligrade
Ungulated	Equipped with hooves	Hoofed, hoofed-footed, unguligrade
Ungummed	Not having adhesive applied	Non-sticky, smooth, unglued
Ungusseted	Not reinforced with gussets	Unreinforced, plain, simple
Unhallowed	Not holy or consecrated	Profane, impious, unblessed
Unhampered	Not restricted or obstructed	Free, unrestricted, unimpeded
Unhandsome	Not attractive or graceful	Plain, unattractive, unsightly
Unhappy	Not happy or content	Sad, discontented, miserable
Unhardened	Not made hard or tough	Soft, tender, pliable
Unharmed	Not damaged or injured	Safe, intact, unharmed
Unharmonious	Not forming a pleasing or consistent whole	Dissonant, discordant, clashing
Unhatched	Not yet hatched	Unborn, undeveloped, unhatched
Unhazardous	Not dangerous or risky	Safe, harmless, nonhazardous
Unheaded	Without a head or leader	Leaderless, decapitated, headless
Unhealed	Not healed or recovered	Injured, open, untreated
Unhealthful	Not promoting good health	Unhealthy, harmful, detrimental
Unhealthy	Not in good health	Sickly, unwell, ailing
Unhearable	Not able to be heard	Inaudible, silent, soundless
Unheard	Not heard or listened to	Ignored, unnoticed, disregarded
Unhearing	Not hearing or listening	Deaf, unresponsive, inattentive
Unheated	Not warmed or heated	Cold, unheated, cool
Unheeded	Not noticed or considered	Ignored, disregarded, neglected
Unheeding	Not paying attention	Careless, inattentive, oblivious
Unhelpful	Not providing assistance	Useless, uncooperative, ineffective
Unheralded	Not previously announced or expected	Unexpected, unannounced, unnoticed
Unhesitating	Without delay or pause	Immediate, prompt, decisive
Unhewn	Not cut or shaped	Rough, natural, unshaped
Unhindered	Not hindered or obstructed	Unimpeded, free, unrestricted
Unhinged	Mentally unstable	Deranged, unstable, insane
Unholy	Not holy or sacred	Profane, impious, wicked
Unhomogenised	Not homogenized	Unmixed, unprocessed, raw
Unhomogenized	Not subjected to homogenization	Raw, unprocessed, whole
Unhoped	Not hoped for	Unexpected, unforeseen, surprising
Unhopeful	Not showing hope or optimism	Pessimistic, doubtful, discouraged
Unhuman	Not human; inhuman	Inhuman, alien, unnatural
Unhumorous	Lacking a sense of humor	Serious, solemn, grave
Unhurried	Done without haste	Leisurely, relaxed, slow
Unhurt	Not injured or harmed	Safe, unharmed, intact
Unhygienic	Not clean or sanitary	Unsanitary, dirty, filthy
Uniate	Relating to Eastern churches in communion with Rome	Eastern Catholic, Byzantine, Greek Catholic
Unicameral	Having a single legislative chamber	Single-chambered, monolithic, simple
Unicellular	Consisting of a single cell	Single-celled, microscopic, minute
Unicuspid	Having a single cusp	Single-pointed, simple, single-peaked
Unidentifiable	Not able to be identified	Unrecognizable, mysterious, unknown
Unidentified	Not recognized or named	Unknown, unnamed, anonymous
Unidimensional	Having only one dimension	One-dimensional, linear, single-layered
Unidirectional	Moving or operating in one direction	One-way, linear, forward
Unifacial	Having only one face or surface	One-sided, singular, mono-faced
Unified	Made into a single entity	Combined, merged, integrated
Unifilar	Consisting of or using a single thread or filament	Single-threaded, monofilament, simple
Unifoliate	Having a single leaf	Single-leafed, simple, mono-leaved
Uniform	Remaining the same in all cases	Consistent, identical, unchanging
Uniformed	Wearing a uniform	Dressed, clad, garbed
Unifying	Bringing together or combining	Integrative, consolidating, cohesive
Unilateral	Affecting only one side	One-sided, single-sided, independent
Unilluminated	Not lit or illuminated	Dark, unlit, shadowed
Unilluminating	Not providing enlightenment or insight	Dull, uninspiring, non-revealing
Unimaginable	Not possible to imagine or comprehend	Unthinkable, inconceivable, unbelievable
Unimaginative	Lacking creativity or originality	Dull, mundane, uninspired
Unimagined	Not thought of or considered	Unexpected, unforeseen, unanticipated
Unimodal	Having or involving one mode	Single-modal, uniform, singular
Unimpaired	Not damaged or weakened	Intact, unharmed, flawless
Unimpassioned	Lacking strong emotion or feeling	Detached, indifferent, unemotional
Unimpeachable	Not able to be doubted or questioned	Irreproachable, unquestionable, trustworthy
Unimpeded	Not obstructed or hindered	Unhindered, unobstructed, free-flowing
Unimportant	Not of great significance or value	Trivial, insignificant, minor
Unimposing	Not imposing or impressive	Modest, plain, unremarkable
Unimpregnated	Not impregnated or fertilized	Unfertilized, sterile, barren
Unimpressed	Not feeling admiration or interest	Indifferent, unmoved, nonchalant
Unimpressionable	Not easily influenced or affected	Resistant, insusceptible, hardened
Unimpressive	Not evoking admiration or interest	Ordinary, plain, lackluster
Unimprisoned	Not confined or imprisoned	Free, unconfined, unrestricted
Unimproved	Not made better or developed	Stagnant, unchanged, undeveloped
Unincorporated	Not included as part of a whole	Separate, independent, unintegrated
Unindustrialised	Not industrialized or developed	Rural, undeveloped, agrarian
Unindustrialized	Not transformed into an industrial society	Undeveloped, non-industrial, rural
Uninebriated	Not intoxicated or drunk	Sober, clear-headed, alert
Uninfected	Not affected by infection	Healthy, untainted, clean
Uninflected	Not having inflection	Monotone, flat, unvaried
Uninfluenced	Not affected or swayed	Independent, unaffected, unbiased
Uninfluential	Having little or no influence	Powerless, ineffective, insignificant
Uninformative	Not providing useful or sufficient information	Vague, unclear, unhelpful
Uninformed	Not having knowledge or awareness	Ignorant, unaware, uneducated
Uninhabitable	Not suitable for living	Unlivable, unfit, barren
Uninhabited	Not lived in or occupied	Vacant, empty, deserted
Uninhibited	Not restricted; free in behavior	Spontaneous, unrestrained, free-spirited
Uninitiate	Not initiated or introduced	Novice, untrained, inexperienced
Uninitiated	Lacking experience or knowledge	Ignorant, untrained, green
Uninjectable	Not capable of being injected	Non-injectable, unsuitable, inadmissible
Uninjured	Not harmed or damaged	Safe, intact, unharmed
Uninominal	Having one name or term	Singular, individual, single-term
Uninquiring	Not showing curiosity or inquiry	Indifferent, uninterested, apathetic
Uninquisitive	Not eager to learn or ask questions	Uncurious, uninterested, indifferent
Uninspired	Lacking enthusiasm or creativity	Dull, unoriginal, lifeless
Uninspiring	Not producing inspiration	Dull, mundane, uninfluential
Uninstructed	Not taught or trained	Ignorant, untaught, untrained
Uninstructive	Not giving knowledge or instruction	Unhelpful, vague, unclear
Uninsurable	Not able to be insured	High-risk, non-insurable, ineligible
Uninsured	Not covered by insurance	Unprotected, uncovered, unbacked
Unintegrated	Not combined or unified	Separate, isolated, independent
Unintelligent	Lacking intelligence	Stupid, dull, ignorant
Unintelligible	Impossible to understand	Incomprehensible, unclear, baffling
Unintended	Not planned or meant	Accidental, unplanned, inadvertent
Unintentional	Not done on purpose	Accidental, unintended, unplanned
Uninterested	Not interested or concerned	Apathetic, indifferent, dispassionate
Uninteresting	Not engaging or exciting	Dull, boring, monotonous
Uninterrupted	Not stopped or interrupted	Continuous, constant, seamless
Unintimidated	Not frightened or discouraged	Bold, confident, fearless
Unintoxicated	Not under the influence of alcohol or drugs	Sober, clear-headed, lucid
Unintrusive	Not imposing or disruptive	Discreet, unobtrusive, low-key
Uninucleate	Having a single nucleus	Mononuclear, single-nucleated, unicellular
Uninventive	Lacking creativity or innovation	Dull, unimaginative, uninspired
Uninvited	Not invited or expected	Unsolicited, unasked, unwelcome
Uninviting	Not appealing or welcoming	Unattractive, unappealing, unwelcoming
Uninvolved	Not participating or interested	Detached, disengaged, distant
Unionized	Organized into a labor union	Collective, organized, affiliated
Uniovular	Originating from a single ovum	Monozygotic, single-egg, identical
Uniovulate	Having one ovule	Single-ovulate, mono-ovulate, single-seeded
Uniparous	Producing a single offspring at a time	Single-birth, mono-birth, one-offspring
Unipolar	Having or relating to a single pole or direction	Single-pole, mono-polar, one-sided
Unique	Being the only one of its kind	Distinct, singular, unparalleled
Unironed	Not ironed; wrinkled	Wrinkled, creased, crumpled
Unisex	Suitable for any gender	Gender-neutral, androgynous, unisex
Unisexual	Having only one sex or gender	Monoecious, single-sex, one-gender
Unitarian	Relating to the belief in the unity of God	Monotheistic, non-trinitarian, singular-belief
Unitary	Forming a single or uniform entity	Unified, singular, whole
United	Joined together as one	Unified, combined, merged
Univalent	Having a valence of one	Monovalent, single-valent, single-bond
Univalve	Having a shell consisting of one valve	Single-shelled, mono-valve, one-piece
Universal	Applicable everywhere or in all cases	Global, all-encompassing, comprehensive
Universalist	Related to or advocating universalism	Inclusive, all-embracing, all-encompassing
Universalistic	Embracing all people or things; worldwide	Global, inclusive, all-encompassing
Univocal	Having only one meaning or interpretation	Clear, unambiguous, unequivocal
Unjointed	Lacking joints or divisions	Continuous, seamless, unsegmented
Unjust	Not fair or reasonable	Unfair, inequitable, biased
Unjustifiable	Not able to be justified or explained	Inexcusable, indefensible, unreasonable
Unjustified	Not warranted or deserved	Unmerited, unwarranted, baseless
Unkempt	Having an untidy or disheveled appearance	Disheveled, untidy, messy
Unkept	Not cared for or neglected	Neglected, disordered, untidy
Unkeyed	Not matched or corresponding to a key or code	Uncoded, unmatched, unrelated
Unkind	Lacking kindness; harsh or cruel	Cruel, harsh, mean
Unkindled	Not ignited or sparked	Unlit, extinguished, unaroused
Unkindly	In an unkind manner	Rude, harsh, unfriendly
Unknowable	Impossible to know	Unfathomable, mysterious, inscrutable
Unknowing	Not aware or conscious	Ignorant, unaware, unconscious
Unknowledgeable	Lacking knowledge or understanding	Ignorant, uninformed, uneducated
Unknown	Not known or familiar	Mysterious, unidentified, unfamiliar
Unlabeled	Not labeled or identified	Unmarked, unnamed, anonymous
Unlabelled	Without a label or identification	Unmarked, anonymous, nameless
Unlaced	Not laced or fastened	Loose, untied, undone
Unladylike	Not appropriate for a lady; coarse	Coarse, unrefined, improper
Unlamented	Not mourned or missed	Unmourned, forgotten, unmissed
Unlatched	Not fastened or secured with a latch	Open, unlocked, unsecured
Unlaureled	Not honored with a laurel or award	Unrecognized, unsung, unnoticed
Unlaurelled	Not decorated with laurels	Unacknowledged, unsung, unrewarded
Unlawful	Not conforming to the law	Illegal, illicit, forbidden
Unleaded	Not containing lead	Lead-free, unleaded, safe
Unlearned	Not having acquired knowledge or education	Ignorant, uneducated, unschooled
Unleavened	Not leavened or raised with yeast	Flat, unleavened, unrisen
Unlettered	Illiterate or uneducated	Illiterate, ignorant, uneducated
Unlicenced	Not having a license	Unlicensed, unauthorized, illegal
Unlicensed	Not having official permission or authorization	Unauthorized, illegal, unapproved
Unlifelike	Not resembling life; artificial	Artificial, unnatural, unreal
Unlighted	Not illuminated or lit	Dark, unlit, unilluminated
Unlikable	Not easy to like or be fond of	Disagreeable, unpleasant, off-putting
Unlike	Different from; not similar	Dissimilar, different, distinct
Unlikeable	Difficult to like or appreciate	Unpleasant, disagreeable, detestable
Unlikely	Not likely to happen or be true	Improbable, doubtful, uncertain
Unlimited	Not restricted in terms of number or quantity	Boundless, infinite, unrestricted
Unlined	Without lines or wrinkles	Smooth, unwrinkled, flat
Unlipped	Having no lip or edge	Flat, edgeless, unbordered
Unlisted	Not included in a list or directory	Unknown, unregistered, private
Unlit	Not illuminated; dark	Dark, unilluminated, shadowy
Unliterary	Not literary or scholarly	Non-literary, plain, simple
Unlittered	Not cluttered or untidy	Neat, tidy, uncluttered
Unlivable	Not suitable to live in	Inhospitable, uninhabitable, unsuitable
Unliveable	Not fit for living	Inhospitable, unsuitable, uninhabitable
Unliveried	Not dressed in a uniform or official attire	Unclothed, plain, informal
Unloaded	Without cargo or load	Empty, unburdened, vacant
Unlobed	Without lobes	Smooth, plain, unsegmented
Unlocated	Not placed or situated	Unfound, undetected, undiscovered
Unlocked	Not secured by a lock	Open, unfastened, unsecured
Unlogical	Not logical; lacking sense	Illogical, irrational, nonsensical
Unlovable	Difficult to love or appreciate	Unattractive, unappealing, disagreeable
Unloved	Not loved or cared for	Neglected, forsaken, uncherished
Unlovely	Not attractive or beautiful	Plain, unattractive, unappealing
Unloving	Showing no affection or warmth	Cold, distant, unfriendly
Unlubricated	Not having been lubricated	Dry, uncoated, ungreased
Unlucky	Marked by bad luck or misfortune	Unfortunate, cursed, ill-fated
Unmade	Not made or constructed	Undone, incomplete, unprepared
Unmalicious	Not intending harm	Innocent, kind, harmless
Unmalleable	Not able to be shaped or bent	Rigid, inflexible, unyielding
Unmalted	Not converted into malt	Raw, unmalted, unprocessed
Unmanageable	Difficult to manage or control	Uncontrollable, unruly, difficult
Unmanful	Lacking courage or strength	Weak, cowardly, timid
Unmanlike	Not characteristic of a man	Unmasculine, effeminate, weak
Unmanly	Not having qualities traditionally associated with men	Effeminate, weak, cowardly
Unmanned	Not operated or controlled by a human	Automated, remote, pilotless
Unmannered	Not showing proper manners	Rude, impolite, discourteous
Unmannerly	Lacking good manners	Rude, impolite, uncivil
Unmapped	Not shown on a map	Unknown, uncharted, unexplored
Unmarked	Having no marks or indications	Plain, clean, featureless
Unmarketable	Not fit for sale	Unsalable, undesirable, unsellable
Unmarred	Not spoiled or damaged	Untarnished, pristine, flawless
Unmarried	Not married	Single, unattached, unwed
Unmasked	Not wearing a mask	Exposed, revealed, uncovered
Unmatchable	Impossible to match or equal	Incomparable, unrivaled, peerless
Unmatched	Having no equal or match	Unparalleled, unrivaled, unique
Unmated	Not paired or matched	Single, solitary, unpaired
Unmeaning	Lacking meaning or significance	Senseless, pointless, meaningless
Unmeasurable	Impossible to measure	Immeasurable, boundless, infinite
Unmeasured	Not measured or assessed	Uncalculated, undetermined, unspecified
Unmechanical	Not mechanical or automatic	Manual, non-mechanical, human-driven
Unmechanised	Not mechanized	Manual, traditional, non-automated
Unmechanized	Not equipped with machines	Manual, non-mechanized, human-operated
Unmediated	Without an intermediary or medium	Direct, immediate, unfiltered
Unmedical	Not related to medicine	Non-medical, lay, informal
Unmedicative	Not having medicinal properties	Non-medicinal, non-therapeutic, non-healing
Unmedicinal	Lacking medical properties	Non-medicinal, non-curative, ineffective
Unmelodic	Not melodic or tuneful	Discordant, unmusical, harsh
Unmelodious	Not producing melody	Harsh, discordant, unmusical
Unmelted	Not melted or fused	Solid, hard, unchanged
Unmemorable	Not worth remembering	Forgettable, bland, insignificant
Unmentionable	Too embarrassing or shocking to be mentioned	Taboo, unspeakable, forbidden
Unmercenary	Not motivated by personal gain	Altruistic, selfless, generous
Unmerchantable	Not fit for sale	Unsellable, unmarketable, defective
Unmerciful	Lacking mercy	Ruthless, harsh, unforgiving
Unmerited	Not deserved or earned	Undeserved, unjustified, unwarranted
Unmeritorious	Lacking merit or worth	Worthless, undeserving, inadequate
Unmethodical	Not systematic or organized	Chaotic, disordered, haphazard
Unmilitary	Not suitable for the military	Non-military, civilian, untrained
Unmindful	Not paying attention	Neglectful, oblivious, inattentive
Unmined	Not extracted from a mine	Raw, unextracted, natural
Unmingled	Not mixed or blended	Pure, separate, isolated
Unmistakable	Not able to be mistaken for anything else	Distinct, clear, obvious
Unmitigable	Unable to be mitigated or lessened	Unavoidable, relentless, unavoidable
Unmitigated	Absolute and not diminished in any way	Total, complete, thorough
Unmixable	Not capable of being mixed	Incompatible, immiscible, non-blendable
Unmixed	Not mixed or combined with anything else	Pure, separate, uncombined
Unmoderated	Not controlled or moderated	Unchecked, unrestricted, unregulated
Unmodernised	Not modernized or updated	Outdated, old-fashioned, traditional
Unmodernized	Not brought up to date	Antiquated, old-style, unchanged
Unmodifiable	Not capable of being changed or altered	Immutable, fixed, unalterable
Unmodified	Not changed or altered in any way	Original, unchanged, unaltered
Unmodulated	Not modulated or adjusted	Monotone, flat, uniform
Unmolested	Not interfered with or disturbed	Peaceful, untouched, undisturbed
Unmortgaged	Not subject to a mortgage	Debt-free, unpledged, freehold
Unmotivated	Lacking motivation or incentive	Indifferent, apathetic, uninspired
Unmotorised	Not equipped with a motor	Manual, non-motorized, hand-powered
Unmotorized	Without a motor or engine	Non-mechanical, manual, non-powered
Unmourned	Not grieved for or mourned	Unlamented, forgotten, disregarded
Unmovable	Unable to be moved	Immovable, stationary, fixed
Unmoved	Not emotionally affected	Indifferent, detached, impassive
Unmoving	Not in motion	Still, stationary, motionless
Unmown	Not cut or mowed	Overgrown, wild, uncut
Unmusical	Not musical or pleasant to hear	Discordant, tuneless, harsh
Unmutilated	Not mutilated or damaged	Whole, intact, undamaged
Unmyelinated	Lacking a myelin sheath	Naked, unprotected, unsheathed
Unnameable	Unable to be named or described	Indescribable, ineffable, unspeakable
Unnamed	Without a name or title	Anonymously, unidentified, unknown
Unnatural	Not natural; artificial or abnormal	Strange, unusual, artificial
Unnaturalised	Not naturalized	Foreign, non-native, alien
Unnaturalized	Not granted citizenship	Non-citizen, foreign, non-native
Unnavigable	Impossible to navigate	Impassable, untraversable, blocked
Unnecessary	Not needed or required	Redundant, superfluous, excessive
Unneeded	Not needed	Unnecessary, redundant, unessential
Unneighborly	Not friendly or helpful to neighbors	Unfriendly, distant, cold
Unneighbourly	Not showing kindness or friendliness	Inhospitable, unfriendly, unsociable
Unnerved	Deprived of courage or confidence	Worried, anxious, disturbed
Unnerving	Causing one to lose confidence	Disturbing, disconcerting, unsettling
Unneurotic	Not neurotic; mentally stable	Calm, composed, balanced
Unnotched	Without notches or indentations	Flat, smooth, plain
Unnoted	Not noticed or observed	Unobserved, overlooked, unnoticed
Unnoticeable	Not easily noticed	Inconspicuous, subtle, hidden
Unnoticed	Not noticed or seen	Ignored, unseen, overlooked
Unnourished	Not provided with food or nutrients	Undernourished, starving, malnourished
Unnumberable	Too many to count	Countless, infinite, innumerable
Unnumbered	Not numbered or counted	Countless, uncounted, untallied
Unnumerable	Too many to be counted	Countless, innumerable, infinite
Unobjectionable	Not objectionable; acceptable	Acceptable, permissible, tolerable
Unobjective	Lacking impartiality; subjective	Biased, partial, subjective
Unobligated	Not obligated or bound by any duty	Free, unbound, noncommitted
Unobliging	Not helpful or willing to assist	Unhelpful, uncooperative, unsupportive
Unobservable	Not able to be observed	Invisible, hidden, undetectable
Unobservant	Not paying close attention	Inattentive, careless, distracted
Unobserved	Not seen or noticed	Unnoticed, overlooked, unremarked
Unobstructed	Not blocked or hindered	Clear, open, free
Unobtainable	Impossible to obtain	Unreachable, inaccessible, unattainable
Unobtrusive	Not conspicuous or attracting attention	Inconspicuous, discreet, subtle
Unobvious	Not easily noticed or clear	Hidden, subtle, unclear
Unoccupied	Not being used or filled	Empty, vacant, uninhabited
Unoffending	Not causing offense	Harmless, inoffensive, benign
Unofficial	Not formally recognized	Informal, unauthorized, unapproved
Unoiled	Not oiled; lacking lubrication	Dry, rough, unlubricated
Unopen	Not open or accessible	Closed, shut, sealed
Unopened	Not opened	Sealed, intact, unused
Unopposable	Not able to be opposed	Indisputable, uncontestable, irrefutable
Unopposed	Not opposed or challenged	Unchallenged, uncontested, supported
Unordered	Not arranged in order	Chaotic, disordered, unorganized
Unorganised	Not organized or structured	Disordered, disorganized, scattered
Unorganized	Lacking structure or system	Messy, unstructured, chaotic
Unoriented	Not aligned or directed	Disoriented, unfocused, aimless
Unoriginal	Not original; derivative	Imitative, copied, uninspired
Unornamented	Plain and without decoration	Simple, unadorned, bare
Unorthodox	Not conforming to traditional beliefs	Unconventional, unusual, nontraditional
Unostentatious	Not showy or flamboyant	Modest, simple, understated
Unowned	Not owned or claimed	Free, unclaimed, ownerless
Unoxygenated	Not oxygenated or lacking oxygen	Deoxygenated, anoxic, oxygen-free
Unpackaged	Not enclosed in a package	Loose, bulk, unpacked
Unpaid	Not paid for or compensated	Outstanding, due, unpaid-for
Unpainful	Not causing pain	Painless, comfortable, pain-free
Unpaintable	Not suitable for painting	Non-paintable, unsuitable, uncoatable
Unpainted	Not painted	Bare, uncoated, plain
Unpaired	Not matched with a pair	Single, unmatched, lone
Unpalatable	Not pleasant to taste	Distasteful, unappetizing, unpleasant
Unparallel	Not parallel	Nonparallel, skewed, divergent
Unparalleled	Having no parallel or equal	Unique, unmatched, peerless
Unpardonable	Not able to be pardoned	Unforgivable, inexcusable, intolerable
Unparented	Without parental guidance	Orphaned, unprotected, guardianless
Unparliamentary	Not appropriate to a parliament	Improper, inappropriate, unsuitable
Unpartitioned	Not divided into sections	Whole, undivided, continuous
Unpassable	Impossible to pass through	Impassable, blocked, closed
Unpasteurised	Not subjected to pasteurization	Raw, unprocessed, untreated
Unpasteurized	Not pasteurized	Raw, untreated, unprocessed
Unpatented	Not protected by a patent	Generic, non-patented, open
Unpatriotic	Lacking patriotism	Disloyal, unfaithful, unnationalistic
Unpatronised	Not supported by patrons	Unsupported, unattended, deserted
Unpatronized	Not patronized or attended	Deserted, unsponsored, unsupported
Unpatterned	Not having a pattern	Plain, solid, simple
Unpaved	Not covered with a hard surface	Dirt, unsealed, gravel
Unpeaceable	Not inclined towards peace	Hostile, aggressive, combative
Unpeaceful	Not peaceful	Violent, chaotic, disruptive
Unpeopled	Without people	Desolate, uninhabited, empty
Unperceivable	Not able to be perceived	Invisible, undetectable, hidden
Unperceived	Not noticed or seen	Unnoticed, overlooked, unseen
Unperceiving	Lacking perception	Unaware, unobservant, blind
Unperceptive	Not perceptive	Oblivious, inattentive, unobservant
Unperformed	Not carried out or completed	Incomplete, undone, unexecuted
Unpermed	Not subjected to a perm (hair treatment)	Natural, untreated, uncurled
Unpermissive	Not permissive or allowing	Restrictive, strict, prohibitive
Unperplexed	Not confused or puzzled	Clear-headed, certain, confident
Unpersuadable	Unable to be persuaded	Stubborn, inflexible, obstinate
Unpersuaded	Not convinced or influenced	Unconvinced, skeptical, doubtful
Unpersuasive	Not convincing	Ineffective, weak, unconvincing
Unperturbed	Not concerned or troubled	Calm, composed, undisturbed
Unpictured	Not depicted in an image	Unrepresented, unseen, undrawn
Unpicturesque	Not visually appealing	Unattractive, plain, dull
Unpierced	Not having holes or piercings	Intact, whole, unpunctured
Unpigmented	Lacking pigment or color	Colorless, pale, albino
Unpillared	Without pillars or columns	Unsupported, plain, uncolumned
Unpitying	Showing no pity or compassion	Merciless, ruthless, unforgiving
Unplaced	Not assigned a place	Unranked, unpositioned, unassigned
Unplanned	Not arranged or planned	Spontaneous, impromptu, unscheduled
Unplanted	Not cultivated or sown	Untilled, barren, empty
Unplayable	Not suitable for playing	Inoperative, broken, unusable
Unplayful	Not inclined to play or have fun	Serious, stern, somber
Unpleasant	Not pleasant or enjoyable	Disagreeable, uncomfortable, unwelcome
Unpleasing	Not pleasing or satisfying	Unattractive, displeasing, unsatisfying
Unpledged	Not committed to a pledge	Uncommitted, free, unattached
Unploughed	Not plowed or tilled	Untilled, barren, unturned
Unplowed	Not plowed	Untilled, untouched, fallow
Unplumbed	Not measured for depth	Unexplored, uncharted, unfathomed
Unpointed	Not sharpened to a point	Dull, blunt, unsharpened
Unpolished	Not refined or smooth	Rough, raw, unrefined
Unpolitical	Not related to politics	Apolitical, neutral, impartial
Unpolluted	Not contaminated or polluted	Clean, pure, untainted
Unpompous	Not pompous or pretentious	Humble, simple, modest
Unpopular	Not liked by many people	Disliked, unfavored, shunned
Unpopulated	Not inhabited	Empty, vacant, uninhabited
Unportable	Not easily carried	Bulky, heavy, immobile
Unposed	Not arranged in a pose	Natural, candid, informal
Unpotted	Not planted in a pot	Uncontained, free, loose
Unpowered	Lacking power or propulsion	Inactive, idle, motionless
Unpracticed	Not experienced or skilled	Inexperienced, untrained, novice
Unpractised	Not skilled or experienced (British spelling)	Inexperienced, unskilled, green
Unprecedented	Never done or known before	Novel, unparalleled, unique
Unpredictable	Not able to be predicted	Unforeseeable, random, erratic
Unpredicted	Not expected or predicted	Surprising, unexpected, unforeseen
Unpredictive	Not predictive of future events	Non-indicative, uncertain, ambiguous
Unprejudiced	Not biased or prejudiced	Impartial, unbiased, fair-minded
Unpremeditated	Not planned or rehearsed	Spontaneous, impulsive, unplanned
Unprepared	Not ready or equipped	Unready, caught off guard, untrained
Unprepossessing	Not attractive or impressive	Plain, unremarkable, ordinary
Unpresentable	Not suitable for display	Messy, disheveled, scruffy
Unpresidential	Not characteristic of a president	Unleaderly, informal, casual
Unpressed	Not pressed or ironed	Wrinkled, creased, rumpled
Unpretending	Not pretending or showing off	Modest, genuine, humble
Unpretentious	Not attempting to impress others	Simple, modest, down-to-earth
Unpreventable	Cannot be prevented	Inevitable, unavoidable, unstoppable
Unpriestly	Not befitting a priest	Secular, unholy, non-clerical
Unprincipled	Without moral principles	Immoral, unethical, unscrupulous
Unprintable	Not suitable for publication	Offensive, inappropriate, obscene
Unproblematic	Not causing or involving problems	Smooth, simple, trouble-free
Unprocessed	Not processed or refined	Raw, natural, untreated
Unprocurable	Cannot be obtained	Unavailable, inaccessible, unattainable
Unproductive	Not producing desired results	Inefficient, fruitless, barren
Unprofessional	Not displaying professionalism	Amateurish, sloppy, careless
Unprofitable	Not yielding profit or financial gain	Unlucrative, unremunerative, loss-making
Unprogressive	Not favoring or implementing new or modern ideas	Conservative, stagnant, traditional
Unpromised	Not assured or guaranteed	Unpledged, uncommitted, uncertain
Unpromising	Not showing signs of future success	Discouraging, bleak, unhopeful
Unprompted	Done or said without being asked	Spontaneous, voluntary, unbidden
Unpronounceable	Difficult or impossible to pronounce	Inarticulable, complex, challenging
Unprophetic	Not predictive of future events	Non-foreseeing, uninspired, unprescient
Unpropitious	Not favorable or conducive	Adverse, unfavorable, unlucky
Unprotected	Not guarded or shielded	Vulnerable, exposed, defenseless
Unprotective	Failing to provide protection	Neglectful, careless, unsafe
Unprovable	Cannot be proven or verified	Indemonstrable, inconclusive, uncertain
Unproved	Not proven to be true or correct	Unverified, untested, unsubstantiated
Unproven	Not confirmed as true	Unsubstantiated, speculative, unverified
Unprovocative	Not causing a strong reaction	Bland, neutral, uninspiring
Unprovoked	Not caused by anything done or said	Spontaneous, unjustified, unexpected
Unprovoking	Not arousing a response or reaction	Calm, passive, neutral
Unpublishable	Not fit to be published	Inappropriate, offensive, unprintable
Unpublished	Not made public or released	Unreleased, undistributed, private
Unpunctual	Not punctual	Late, tardy, behind schedule
Unpunished	Not subject to a penalty	Overlooked, forgiven, excused
Unpurified	Not purified or cleansed	Contaminated, impure, dirty
Unqualified	Not having the necessary qualifications	Inexperienced, unskilled, uncertified
Unquantifiable	Cannot be measured or quantified	Inestimable, immeasurable, limitless
Unquenchable	Impossible to satisfy	Insatiable, unappeasable, ravenous
Unquestionable	Not open to question; beyond doubt	Indisputable, undeniable, certain
Unquestioned	Not challenged or doubted	Accepted, acknowledged, taken for granted
Unquestioning	Accepting without doubt or reservation	Submissive, compliant, obedient
Unquiet	Not calm or peaceful	Restless, agitated, disturbed
Unquotable	Not suitable for being quoted	Inappropriate, unrepeatable, unprintable
Unraised	Not lifted or elevated	Lowered, down, flat
Unranked	Not having a rank or position	Unclassified, unordered, unlisted
Unratable	Cannot be rated or evaluated	Unassessable, unmeasurable, immeasurable
Unratified	Not formally approved	Unapproved, unofficial, pending
Unraveled	Untangled or solved	Disentangled, resolved, clarified
Unreachable	Impossible to reach	Inaccessible, distant, unattainable
Unreached	Not attained or reached	Unattained, untouched, undiscovered
Unreactive	Not showing a response to stimuli	Inactive, inert, non-responsive
Unread	Not read	Unexplored, ignored, untouched
Unreadable	Impossible or difficult to read	Illegible, unclear, indecipherable
Unready	Not prepared	Unprepared, unfit, caught off guard
Unreal	Not real or actual	Imaginary, fictitious, illusory
Unrealised	Not brought into being or made real	Potential, unfulfilled, dormant
Unrealistic	Not practical or not based on reality	Impractical, fanciful, naive
Unrealizable	Not capable of being achieved	Impracticable, unattainable, impossible
Unrealized	Not achieved or recognized	Latent, potential, unfulfilled
Unreasonable	Not guided by or based on good sense	Irrational, senseless, illogical
Unreasoning	Not based on or influenced by reason	Irrational, blind, impulsive
Unreassuring	Not providing comfort or confidence	Worrying, unsettling, disquieting
Unreceptive	Not willing to consider or accept new ideas	Closed-minded, resistant, unresponsive
Unreciprocated	Not returned in kind	Unreturned, one-sided, unrequited
Unrecognisable	Not able to be identified	Unidentifiable, obscure, distorted
Unrecognised	Not given formal acknowledgment	Unacknowledged, unnoticed, overlooked
Unrecognizable	Impossible to identify	Indistinct, blurred, altered
Unrecognized	Not identified or acknowledged	Unknown, ignored, forgotten
Unreconcilable	Not able to be brought into harmony	Irreconcilable, incompatible, contradictory
Unreconciled	Not brought into agreement	Disunited, estranged, unresolved
Unreconstructed	Not changed in beliefs or attitudes	Stubborn, traditional, unrepentant
Unrecorded	Not captured or noted	Unregistered, undocumented, unlisted
Unrecoverable	Not able to be retrieved or restored	Irretrievable, lost, gone
Unredeemable	Not able to be improved or corrected	Hopeless, irredeemable, incurable
Unredeemed	Not redeemed or saved from error or evil	Unfulfilled, unsaved, unclaimed
Unreduced	Not reduced in size, amount, or degree	Undiminished, intact, whole
Unrefined	Not processed to remove impurities	Crude, raw, natural
Unreflected	Not mirrored or considered	Unconsidered, unthought-of, disregarded
Unreflective	Lacking reflection or deep thought	Thoughtless, superficial, impulsive
Unreformable	Incapable of being reformed	Incorrigible, hopeless, unchangeable
Unreformed	Not reformed or improved	Unchanged, traditional, conservative
Unrefreshed	Not revitalized or renewed	Exhausted, tired, worn-out
Unregenerate	Not reformed in character or morals	Unrepentant, hardened, obstinate
Unregenerated	Not spiritually reborn	Unrenewed, unchanged, unsaved
Unregistered	Not officially recorded or listed	Unrecorded, unlisted, undocumented
Unregretful	Without regret or remorse	Unrepentant, unapologetic, unashamed
Unregretting	Not feeling or showing regret	Unapologetic, unrepentant, remorseless
Unregulated	Not controlled or supervised	Unrestricted, uncontrolled, unmanaged
Unrehearsed	Not practiced or planned	Spontaneous, impromptu, unprepared
Unrelated	Not connected or related	Separate, distinct, unrelated
Unrelaxed	Not at ease or free from tension	Tense, anxious, stressed
Unreleased	Not made available to the public	Withheld, unpublished, retained
Unrelenting	Not yielding in strength or determination	Relentless, persistent, unyielding
Unreliable	Not dependable or trustworthy	Undependable, untrustworthy, erratic
Unrelieved	Not lessened or alleviated	Unmitigated, continuous, persistent
Unremarkable	Not particularly interesting or special	Ordinary, commonplace, unexceptional
Unremarked	Not noticed or mentioned	Overlooked, unnoticed, ignored
Unremedied	Not corrected or solved	Unfixed, unresolved, untreated
Unremitting	Never relaxing or slackening	Constant, incessant, relentless
Unremorseful	Not showing any regret or guilt	Unapologetic, unrepentant, ruthless
Unremunerative	Not financially rewarding	Unprofitable, unrewarding, low-yield
Unrenewable	Cannot be renewed or replenished	Exhaustible, finite, nonrenewable
Unrenewed	Not refreshed or renewed	Unrefreshed, unchanged, static
Unrentable	Not suitable for renting	Unsellable, unmarketable, unusable
Unrepaired	Not fixed or mended	Broken, damaged, neglected
Unrepeatable	Cannot be repeated or duplicated	Unique, one-time, exclusive
Unrepentant	Not expressing remorse or regret	Unremorseful, unapologetic, shameless
Unreplaceable	Cannot be replaced	Irreplaceable, unique, unmatched
Unreportable	Not fit to be reported	Unprintable, inappropriate, censored
Unreported	Not made public through reports	Undocumented, unmentioned, unpublished
Unrepresentative	Not typical or characteristic	Atypical, uncharacteristic, exceptional
Unrepresented	Not represented or depicted	Overlooked, ignored, omitted
Unrepressed	Not restrained or controlled	Unrestrained, uninhibited, free
Unreproducible	Cannot be reproduced or replicated	Irreplicable, unique, non-duplicable
Unrequested	Not asked for or solicited	Unsolicited, unasked, spontaneous
Unrequited	Not returned or reciprocated	One-sided, unreturned, unreciprocated
Unresentful	Not feeling resentment	Forgiving, understanding, accepting
Unreserved	Without reservations or hesitation	Open, candid, wholehearted
Unresistant	Not offering resistance	Compliant, yielding, submissive
Unresisting	Not resisting or opposing	Docile, passive, compliant
Unresolvable	Not able to be solved or resolved	Irreconcilable, insoluble, unsolvable
Unresolved	Not settled or determined	Indecisive, uncertain, pending
Unrespectable	Not respectable or worthy of respect	Disreputable, dishonorable, improper
Unresponsive	Not reacting or replying	Indifferent, apathetic, inert
Unrested	Not rested or refreshed	Weary, fatigued, tired
Unrestrained	Not held back or controlled	Uncontrolled, free, rampant
Unrestricted	Not limited or confined	Unlimited, free, open
Unrestrictive	Not imposing restrictions	Permissive, lax, lenient
Unretentive	Lacking memory or ability to retain	Forgetful, non-retentive, absent-minded
Unretrievable	Cannot be retrieved or recovered	Irrecoverable, lost, gone
Unrevealed	Not made known	Hidden, secret, undisclosed
Unreverberant	Not echoing or resonant	Silent, muffled, dampened
Unrevised	Not revised or altered	Original, unedited, unchanged
Unrevived	Not brought back to life or activity	Lifeless, inactive, dormant
Unrewarded	Not given a reward	Unacknowledged, unpaid, unappreciated
Unrewarding	Not providing satisfaction or value	Unfulfilling, unprofitable, fruitless
Unrhetorical	Not rhetorical or elaborate in speech	Straightforward, plain, direct
Unrhymed	Not having rhymes	Free verse, unrhyming, assonant
Unrhythmic	Lacking rhythm or regular pattern	Arrhythmic, irregular, erratic
Unrhythmical	Not having rhythm	Non-rhythmic, unmetrical, uneven
Unrifled	Not rifled or disturbed	Intact, untouched, undisturbed
Unrigged	Not equipped or set up	Unfitted, plain, natural
Unrighteous	Not righteous; wicked	Immoral, unjust, sinful
Unrimed	Without a rim or border	Edgeless, borderless, unlined
Unripe	Not fully developed or mature	Green, immature, premature
Unripened	Not matured or fully grown	Green, undeveloped, young
Unrivaled	Without equal; unmatched	Unmatched, peerless, supreme
Unrivalled	Not having any rival	Unequaled, unsurpassed, unparalleled
Unromantic	Not having a romantic nature or quality	Practical, unsentimental, mundane
Unroofed	Without a roof or cover	Open, exposed, uncovered
Unrouged	Not having makeup or rouge	Natural, plain, unadorned
Unruffled	Calm and not agitated	Composed, serene, untroubled
Unruly	Disorderly and disruptive	Disobedient, wild, uncontrollable
Unsaddled	Without a saddle	Bareback, unsaddled, unmounted
Unsafe	Not safe; dangerous	Hazardous, risky, perilous
Unsaid	Not said or expressed	Unspoken, unvoiced, tacit
Unsalable	Not capable of being sold	Unsellable, unmarketable, unwanted
Unsalaried	Without a salary	Unpaid, volunteer, gratis
Unsaleable	Not fit to be sold	Unmarketable, unsalable, undesirable
Unsalted	Without added salt	Bland, unseasoned, plain
Unsalvageable	Not able to be saved or repaired	Hopeless, irreparable, lost
Unsanctified	Not holy or sanctified	Unblessed, profane, secular
Unsanctioned	Not approved or authorized	Unauthorized, unapproved, unpermitted
Unsanded	Not smoothed or polished	Rough, unpolished, coarse
Unsanitary	Not clean or hygienic	Unhygienic, dirty, contaminated
Unsaponified	Not converted into soap or glycerin	Unrefined, raw, untreated
Unsarcastic	Not sarcastic; sincere	Genuine, straightforward, earnest
Unsated	Not satisfied or fulfilled	Unfulfilled, dissatisfied, hungry
Unsatiable	Impossible to satisfy	Insatiable, unquenchable, voracious
Unsatiated	Not fully satisfied	Unfulfilled, discontented, longing
Unsatisfactory	Not adequate or acceptable	Inadequate, disappointing, poor
Unsatisfiable	Impossible to satisfy	Insatiable, unappeasable, demanding
Unsatisfied	Not content or fulfilled	Dissatisfied, discontented, unfulfilled
Unsatisfying	Not providing satisfaction	Displeasing, frustrating, inadequate
Unsaturated	Not holding the maximum amount of liquid	Not full, unfilled, dilute
Unsaved	Not rescued or protected	Lost, doomed, unsecured
Unsavory	Disagreeable to taste or smell	Unpleasant, distasteful, objectionable
Unsavoury	Disagreeable or offensive	Repugnant, unattractive, unpleasant
Unscalable	Cannot be climbed or scaled	Impassable, insurmountable, inaccessible
Unscathed	Not damaged or harmed	Unharmed, intact, safe
Unscheduled	Not planned or on a schedule	Unexpected, unplanned, impromptu
Unscholarly	Not characteristic of a scholar	Unacademic, uneducated, informal
Unscientific	Not based on or in accordance with science	Unempirical, anecdotal, irrational
Unscripted	Spontaneous or unplanned	Impromptu, unrehearsed, extemporaneous
Unscrupulous	Lacking moral principles	Dishonest, unethical, immoral
Unsealed	Not sealed or closed	Open, unlocked, exposed
Unseamanlike	Not befitting a sailor	Inexpert, clumsy, unskillful
Unseamed	Not joined by seams	Unstitched, opened, loose
Unseasonable	Not appropriate for the season	Untimely, ill-timed, inappropriate
Unseasoned	Lacking experience or seasoning	Inexperienced, new, untrained
Unseaworthy	Not fit for sailing	Unsafe, unstable, damaged
Unsectarian	Not confined to any religious denomination	Nonsectarian, inclusive, open-minded
Unsecured	Not made safe or secure	Unsafe, vulnerable, unprotected
Unseductive	Not attractive or alluring	Unattractive, plain, unappealing
Unseeable	Not capable of being seen	Invisible, hidden, obscured
Unseeded	Not having seeds	Seedless, barren, infertile
Unseeing	Not seeing or perceiving	Blind, oblivious, unaware
Unseemly	Not proper or appropriate	Inappropriate, improper, indecorous
Unseen	Not seen or noticed	Invisible, unnoticed, hidden
Unsegmented	Not divided into segments	Whole, continuous, unbroken
Unsegregated	Not separated or divided	Integrated, unified, mixed
Unselected	Not chosen or picked	Overlooked, passed over, ignored
Unselective	Not discriminating in choices	Indiscriminate, broad, inclusive
Unselfconscious	Not feeling self-conscious or embarrassed	Natural, relaxed, confident
Unselfish	Not selfish; generous	Altruistic, kind, selfless
Unsensational	Not seeking to cause a sensation	Ordinary, plain, simple
Unsent	Not sent or delivered	Unmailed, undelivered, retained
Unsentimental	Not displaying emotion or sentiment	Practical, realistic, unsentimental
Unserviceable	Not fit for use	Useless, broken, inoperative
Unservile	Not submissive or obsequious	Independent, assertive, confident
Unsettled	Not stable or resolved	Insecure, unstable, unresolved
Unsettling	Causing anxiety or uneasiness	Disturbing, disquieting, alarming
Unsexed	Deprived of sex or gender identity	Neutered, genderless, desexualized
Unsexy	Not attractive or appealing in a sexual way	Unattractive, plain, dull
Unshackled	Not bound by shackles or restraints	Free, liberated, unchained
Unshaded	Without shade or shadow	Bright, exposed, clear
Unshadowed	Not covered or obscured by shadows	Bright, clear, illuminated
Unshakable	Cannot be shaken or disturbed	Steadfast, firm, resolute
Unshaken	Not disturbed or moved	Unmoved, steadfast, firm
Unshaped	Not formed or shaped	Amorphous, formless, unformed
Unshapely	Lacking a pleasing shape	Awkward, misshapen, ungainly
Unshapen	Not having a distinct shape	Amorphous, formless, undefined
Unshared	Not shared or distributed	Exclusive, private, personal
Unsharpened	Not made sharp	Blunt, dull, unpointed
Unshaved	Not having been shaved	Bearded, stubbly, untrimmed
Unshaven	Not shaved	Bearded, untrimmed, stubbly
Unsheared	Not cut or shorn	Uncut, untouched, intact
Unsheathed	Removed from a sheath or covering	Exposed, uncovered, bare
Unshelled	Not having had the shell removed	Whole, intact, unpeeled
Unshielded	Not protected by a shield	Unprotected, exposed, vulnerable
Unshockable	Not easily shocked	Imperturbable, steady, calm
Unshod	Not wearing shoes	Barefoot, unshoed, unshodden
Unshoed	Not wearing or fitted with shoes	Barefoot, unshod, unsandaled
Unshorn	Not cut or trimmed	Untouched, overgrown, wild
Unshrinkable	Cannot be shrunk	Non-shrinkable, stable, durable
Unshrinking	Not showing fear or hesitation	Bold, fearless, unyielding
Unshuttered	Without shutters	Open, exposed, windowed
Unsighted	Not having been seen	Invisible, unnoticed, unseen
Unsightly	Not pleasant to look at	Ugly, unattractive, displeasing
Unsigned	Not signed	Anonymous, unendorsed, unmarked
Unsilenced	Not silenced or quieted	Vocal, active, loud
Unsinkable	Cannot sink	Buoyant, afloat, indestructible
Unsized	Not measured or assigned a size	Unmeasured, unscaled, unclassified
Unskilled	Lacking skill or expertise	Inexperienced, amateur, inept
Unskillful	Not skillful or adept	Clumsy, untrained, inept
Unsleeping	Not sleeping	Wakeful, vigilant, alert
Unsloped	Not inclined or slanted	Flat, level, even
Unsmiling	Not smiling	Stern, serious, solemn
Unsmooth	Not smooth	Rough, coarse, uneven
Unsmoothed	Not made smooth	Rough, jagged, raw
Unsnarled	Not tangled or knotted	Untangled, straight, smooth
Unsociable	Not inclined to seek or enjoy social interaction	Antisocial, withdrawn, reclusive
Unsocial	Not social; not enjoying the company of others	Solitary, introverted, unfriendly
Unsoiled	Not dirty or stained	Clean, spotless, pure
Unsold	Not sold	Available, unsold, in stock
Unsoldierly	Not characteristic of a soldier	Unmilitary, civilian, informal
Unsolicited	Not asked for or invited	Voluntary, uninvited, unwelcome
Unsoluble	Not capable of being dissolved	Insoluble, undissolvable, solid
Unsolvable	Cannot be solved	Intractable, difficult, irresolvable
Unsolved	Not resolved or explained	Mystifying, unresolved, pending
Unsophisticated	Lacking refinement or complexity	Simple, naive, basic
Unsorted	Not arranged or classified	Disorganized, mixed, jumbled
Unsought	Not searched for or requested	Unwanted, unsolicited, ignored
Unsound	Not safe or reliable	Faulty, weak, questionable
Unsoundable	Impossible to measure the depth of	Immeasurable, deep, bottomless
Unsounded	Not having been sounded	Silent, untested, untried
Unsoured	Not having become sour	Fresh, sweet, unspoiled
Unsown	Not planted with seeds	Barren, empty, fallow
Unspaced	Not having spaces between	Continuous, dense, packed
Unsparing	Generous; not sparing	Lavish, unstinting, abundant
Unspeakable	Too bad or horrible to be expressed in words	Indescribable, horrific, terrible
Unspecialised	Not specialized	General, basic, non-specific
Unspecialized	Not trained or adapted for a particular purpose	Generic, broad, versatile
Unspecific	Not clearly defined or identified	Vague, ambiguous, broad
Unspecified	Not stated or described in detail	General, undefined, vague
Unspectacular	Not striking or impressive	Ordinary, dull, unremarkable
Unspent	Not used or expended	Remaining, saved, preserved
Unspoiled	Not damaged or spoiled	Pristine, pure, intact
Unspoilt	Not ruined or spoiled	Pristine, untouched, unblemished
Unspoken	Not expressed in words	Implied, tacit, silent
Unsporting	Not fair or sportsmanlike	Unfair, unethical, dishonorable
Unsportsmanlike	Not behaving in a fair and respectful way	Unfair, unsporting, dishonorable
Unspotted	Free from spots or stains	Clean, immaculate, spotless
Unstable	Not steady or firm	Insecure, volatile, precarious
Unstaged	Not set up or presented on a stage	Unperformed, unrehearsed, impromptu
Unstained	Not marked or discolored	Clean, spotless, pure
Unstarred	Not marked with a star	Unmarked, plain, simple
Unstated	Not expressed in words	Implied, tacit, unexpressed
Unstatesmanlike	Not displaying the qualities of a statesman	Unpolitical, amateurish, undiplomatic
Unsteady	Not stable or firm	Wobbly, shaky, unstable
Unsterilised	Not made free from germs	Contaminated, untreated, unclean
Unsterilized	Not sterilized or sanitized	Unclean, impure, contaminated
Unstilted	Not stiff or artificial	Natural, relaxed, unpretentious
Unstimulating	Not stimulating or exciting	Dull, boring, uninteresting
Unstinted	Without restraint or limit	Generous, abundant, plentiful
Unstinting	Given or giving without restraint	Generous, liberal, unsparing
Unstirred	Not stirred or mixed	Still, undisturbed, calm
Unstoppable	Impossible to stop or prevent	Invincible, relentless, inexorable
Unstoppered	Without a stopper or cap	Open, exposed, unsealed
Unstrained	Not strained or forced	Relaxed, natural, effortless
Unstratified	Not arranged in layers	Homogeneous, even, uniform
Unstressed	Not experiencing stress	Relaxed, calm, unworried
Unstructured	Lacking structure or organization	Chaotic, informal, disorganized
Unstrung	Nervous or agitated	Frail, shaken, distressed
Unstuck	No longer stuck	Detached, freed, loose
Unstudied	Not rehearsed or planned	Natural, spontaneous, unprepared
Unstudious	Not inclined to study	Lazy, inattentive, indifferent
Unstylish	Lacking style or fashion	Plain, unfashionable, drab
Unsuasible	Not capable of being persuaded	Stubborn, resolute, unyielding
Unsubdivided	Not divided into smaller parts	Whole, entire, unified
Unsubduable	Impossible to subdue	Invincible, undefeatable, unconquerable
Unsubdued	Not conquered or subdued	Resilient, defiant, strong
Unsubmissive	Not inclined to submit	Defiant, rebellious, assertive
Unsubstantial	Lacking substance	Insignificant, weak, flimsy
Unsubstantiated	Not supported or proven	Unverified, unproven, doubtful
Unsubtle	Obvious; not subtle	Blatant, overt, direct
Unsuccessful	Not achieving success	Failed, unsuccessful, ineffective
Unsufferable	Not capable of being endured	Intolerable, unbearable, insufferable
Unsugared	Without sugar	Plain, unsweetened, natural
Unsuitable	Not appropriate or fitting	Inappropriate, unfit, improper
Unsuited	Not suited or appropriate	Incompatible, ill-matched, unfitting
Unsullied	Not spoiled or made impure	Pure, clean, unblemished
Unsung	Not celebrated or praised	Overlooked, unrecognized, forgotten
Unsupervised	Without supervision	Unmonitored, independent, unchecked
Unsupportable	Cannot be supported	Unbearable, indefensible, untenable
Unsupported	Not backed or upheld	Unsupported, unbacked, unconfirmed
Unsupportive	Not offering support	Unhelpful, indifferent, neglectful
Unsuppressed	Not held back or suppressed	Open, free, uninhibited
Unsure	Lacking confidence or certainty	Hesitant, uncertain, doubtful
Unsurmountable	Impossible to overcome	Insurmountable, unbeatable, unconquerable
Unsurpassable	Cannot be surpassed	Supreme, unmatched, unbeatable
Unsurpassed	Not exceeded in quality or degree	Unmatched, unequaled, peerless
Unsurprised	Not feeling or showing surprise	Expected, prepared, unmoved
Unsurprising	Not surprising or unexpected	Predictable, expected, usual
Unsusceptible	Not easily affected	Immune, resistant, impervious
Unsuspected	Not suspected	Unexpected, unforeseen, unanticipated
Unsuspecting	Not aware of potential danger	Trustful, naive, unguarded
Unsuspicious	Not inclined to suspect	Trustful, unsuspecting, unwary
Unsustainable	Not capable of being maintained	Non-viable, impractical, unfeasible
Unswayed	Not influenced or affected	Uninfluenced, firm, steadfast
Unsweet	Not sweet	Bitter, tart, unsugary
Unsweetened	Without added sweetener	Plain, natural, unsugared
Unswept	Not swept clean	Untidy, dusty, dirty
Unswerving	Steady and not veering off course	Steadfast, firm, unwavering
Unsworn	Not having taken an oath	Unofficial, informal, unpledged
Unsyllabic	Not consisting of or forming syllables	Monosyllabic, non-syllabic
Unsyllabled	Not divided into syllables	Undivided, continuous
Unsymbolic	Not serving as a symbol	Literal, non-representative
Unsymmetric	Not symmetrical	Asymmetrical, uneven, lopsided
Unsymmetrical	Lacking symmetry	Asymmetric, irregular, unbalanced
Unsympathetic	Not feeling or showing sympathy	Unkind, harsh, indifferent
Unsympathising	Not showing sympathy	Unfeeling, unkind, indifferent
Unsympathizing	Lacking sympathy or compassion	Cold, callous, unfeeling
Unsynchronised	Not synchronized	Uncoordinated, out-of-sync, mismatched
Unsynchronized	Not operating at the same time or rate	Asynchronous, unaligned, misaligned
Unsynchronous	Not synchronous	Asynchronous, uncoordinated
Unsystematic	Not done according to a system	Disorganized, haphazard, random
Untactful	Not tactful	Rude, blunt, inconsiderate
Untagged	Without a tag or label	Unmarked, unlabelled, untagged
Untainted	Not contaminated or spoiled	Pure, clean, unblemished
Untalented	Lacking talent	Incompetent, unskilled, talentless
Untalkative	Not inclined to talk	Silent, quiet, reserved
Untamable	Impossible to tame	Wild, feral, uncontrollable
Untamed	Not domesticated or controlled	Wild, natural, feral
Untangled	Freed from a tangle	Unknotted, smooth, detangled
Untanned	Not tanned by the sun	Pale, fair, light-skinned
Untaped	Not taped or recorded	Unrecorded, live, untaped
Untapped	Not yet exploited or used	Unused, dormant, potential
Untarnished	Not tarnished	Pure, pristine, spotless
Untasted	Not tasted	Untested, untouched, untried
Untaught	Not taught or instructed	Ignorant, uneducated, unschooled
Untaxed	Not taxed	Exempt, untaxed, duty-free
Untechnical	Not technical	Simple, basic, non-technical
Untellable	Cannot be told or described	Indescribable, ineffable, unutterable
Untempered	Not moderated or controlled	Raw, unchecked, unrestrained
Untempting	Not tempting or inviting	Unattractive, unappealing, dull
Untenable	Not capable of being maintained	Indefensible, unsustainable, weak
Untenanted	Not occupied by a tenant	Vacant, unoccupied, empty
Untended	Not taken care of	Neglected, ignored, abandoned
Untested	Not tested or tried	Experimental, new, unproven
Untethered	Not tied or restrained	Free, loose, detached
Unthankful	Not expressing gratitude	Ungrateful, unappreciative, thankless
Unthawed	Not thawed or melted	Frozen, solid, icy
Untheatrical	Not theatrical or dramatic	Plain, straightforward, simple
Unthematic	Not relating to a theme	Themeless, unthemed
Unthinkable	Impossible to imagine or believe	Inconceivable, unimaginable, absurd
Unthinking	Not thinking or considering	Careless, heedless, thoughtless
Unthought	Not considered or thought of	Unimaginable, unheard-of, unexpected
Unthoughtful	Lacking consideration for others	Inconsiderate, rude, selfish
Unthreatening	Not posing a threat	Harmless, benign, non-threatening
Untidy	Not neat or organized	Messy, disorganized, cluttered
Untied	Not tied or fastened	Loose, detached, unbound
Untilled	Not plowed or cultivated	Wild, uncultivated, fallow
Untimbered	Lacking trees or timber	Barren, treeless, open
Untimely	Happening at an unsuitable time	Premature, early, ill-timed
Untipped	Not having a tip or end	Blunt, flat-ended
Untired	Not feeling tired	Energetic, refreshed, lively
Untiring	Not showing signs of tiredness	Indefatigable, relentless, tireless
Untitled	Not having a title	Unnamed, anonymous, uncredited
Untoasted	Not toasted	Raw, plain, untoasted
Untold	Too great or numerous to be counted	Countless, innumerable, vast
Untoothed	Lacking teeth	Toothless, smooth, edentulous
Untouchable	Not able to be touched	Invincible, unreachable, sacred
Untouched	Not touched or affected	Pristine, pure, intact
Untoughened	Not toughened or made stronger	Soft, weak, unfortified
Untoward	Unexpected and inappropriate	Inconvenient, troublesome, adverse
Untraceable	Unable to be traced or tracked	Invisible, untrackable, hidden
Untracked	Not tracked or monitored	Unmonitored, overlooked
Untraditional	Not following tradition	Modern, unconventional, non-traditional
Untrained	Without training or experience	Inexperienced, amateur, novice
Untrammeled	Not confined or limited	Free, unrestrained, unrestricted
Untrammelled	Not restricted or hampered	Unlimited, unconfined, unfettered
Untransferable	Cannot be transferred or reassigned	Non-transferable, fixed, permanent
Untranslatable	Cannot be translated into another language	Incomprehensible, unexpressible
Untransmutable	Not capable of being changed into another form	Immutable, fixed, unchangeable
Untraveled	Not having traveled	Stationary, unjourneyed, immobile
Untravelled	Not having traveled or journeyed	Unexplored, untouched
Untraversable	Impossible to cross or travel through	Impassable, unpassable
Untraversed	Not crossed or traveled	Untrodden, unexplored, virgin
Untreated	Not treated or cared for	Neglected, raw, unprocessed
Untried	Not tested or attempted	New, experimental, untested
Untrimmed	Not trimmed or cut	Uncut, overgrown, unruly
Untrod	Not walked on	Untrodden, pristine, unused
Untrodden	Not walked on	Untraveled, unexplored
Untroubled	Not troubled or disturbed	Calm, serene, peaceful
Untrue	Not true or accurate	False, incorrect, deceitful
Untrusting	Not willing to trust	Skeptical, doubtful, wary
Untrustworthy	Not reliable or dependable	Deceitful, unreliable, dishonest
Untrusty	Not trustworthy	Unreliable, suspect, doubtful
Untruthful	Not telling the truth	Deceptive, dishonest, lying
Untucked	Not tucked in	Loose, untied, free
Untufted	Not having tufts	Smooth, flat
Untuneful	Lacking musical quality	Discordant, harsh, off-key
Unturned	Not turned or flipped	Stationary, fixed, upright
Untutored	Without instruction or education	Ignorant, untrained, uneducated
Untwisted	Not twisted or tangled	Straight, smooth
Untypical	Not representative or characteristic	Unusual, atypical, uncommon
Ununderstood	Not understood	Misunderstood, unclear
Unusable	Not fit for use	Broken, unusable, defective
Unuseable	Not able to be used	Inoperative, useless, broken
Unused	Not used or employed	New, untouched, pristine
Unusual	Not usual or common	Unique, rare, exceptional
Unutterable	Too great or extreme to be expressed	Indescribable, inexpressible, ineffable
Unuttered	Not spoken or voiced	Silent, unspoken, withheld
Unvaccinated	Not vaccinated	Unimmunized, unprotected
Unvalued	Not valued or appreciated	Overlooked, neglected, unappreciated
Unvaned	Lacking vanes	Plain, smooth
Unvanquishable	Impossible to defeat	Invincible, unbeatable, unconquerable
Unvanquished	Not conquered or defeated	Victorious, undefeated
Unvaried	Not varied; monotonous	Uniform, consistent, unchanging
Unvarnished	Not coated with varnish	Plain, raw, uncoated
Unvarying	Not changing; consistent	Constant, uniform, steady
Unveiled	Revealed or made public	Disclosed, exposed, uncovered
Unvendible	Not able to be sold	Unsellable, unmarketable
Unvented	Not vented or released	Sealed, closed
Unventilated	Without proper ventilation	Stuffy, airless, enclosed
Unverbalised	Not expressed in words	Unspoken, implicit, unarticulated
Unverbalized	Not put into words	Silent, unexpressed
Unverifiable	Not able to be verified	Unproven, unconfirmable, uncertain
Unverified	Not verified or confirmed	Unproven, unchecked, doubtful
Unversed	Not skilled or experienced	Inexperienced, unpracticed, unfamiliar
Unvigilant	Not watchful or alert	Unobservant, inattentive, careless
Unvindictive	Not vengeful	Forgiving, merciful, lenient
Unvitrified	Not converted into glass	Unhardened, raw, non-glassy
Unvoiced	Not spoken or expressed	Silent, unspoken, mute
Unvoluntary	Not done willingly or voluntarily	Involuntary, forced, compelled
Unvulcanised	Not treated with sulfur to make rubber harder	Raw, untreated, natural
Unvulcanized	Not subjected to vulcanization	Raw, unprocessed
Unwanted	Not desired or needed	Unwelcome, undesired, unnecessary
Unwarmed	Not heated	Cold, unheated, cool
Unwarrantable	Not justifiable or defensible	Unjustifiable, indefensible, unreasonable
Unwarranted	Lacking justification	Unjustified, baseless, unfounded
Unwary	Not cautious or alert	Careless, heedless, unsuspecting
Unwashed	Not cleaned or washed	Dirty, grimy, soiled
Unwatchable	Not worth watching	Boring, dull, uninteresting
Unwatchful	Not observant or vigilant	Inattentive, careless, unobservant
Unwavering	Steady and resolute	Firm, determined, steadfast
Unwaxed	Not covered with wax	Natural, raw, unwaxed
Unweaned	Not yet weaned	Dependent, nursing, immature
Unwearable	Not suitable for wearing	Unfit, impractical, uncomfortable
Unwearied	Not tired or fatigued	Energetic, tireless, vigorous
Unweary	Not feeling weary	Alert, lively, awake
Unwearying	Not causing weariness	Persistent, relentless, tireless
Unweathered	Not worn or affected by the weather	New, pristine, fresh
Unwebbed	Not connected by a web	Separate, detached, unlinked
Unwed	Not married	Single, unmarried
Unwedded	Not married	Unmarried, single, unattached
Unwelcome	Not received or accepted gladly	Unwanted, undesirable, unappreciated
Unwell	Not in good health	Sick, ill, ailing
Unwholesome	Not conducive to health	Harmful, unhealthy, detrimental
Unwieldy	Difficult to carry or move	Cumbersome, awkward, bulky
Unwilled	Not done by choice	Involuntary, unintentional
Unwilling	Not inclined or ready	Reluctant, hesitant, disinclined
Unwise	Not wise or prudent	Foolish, imprudent, rash
Unwished	Not desired or wished for	Undesirable, unwanted
Unwitting	Not aware or conscious	Unknowing, unaware, inadvertent
Unwomanly	Not characteristic of a woman	Masculine, unfeminine
Unwonted	Not usual or expected	Unusual, rare, uncommon
Unwooded	Not containing trees	Barren, treeless, open
Unworkable	Not able to function or be used	Impractical, inoperative, unfeasible
Unworkmanlike	Not done skillfully or carefully	Sloppy, unprofessional, careless
Unworldly	Not concerned with the material world	Spiritual, naive, detached
Unworried	Not anxious or concerned	Calm, relaxed, carefree
Unworthy	Not deserving respect or attention	Undeserving, insignificant, inadequate
Unwounded	Not injured or harmed	Unharmed, intact, whole
Unwoven	Not woven or intertwined	Loose, separated, untangled
Unwrapped	Not covered or enclosed	Open, exposed, uncovered
Unwrinkled	Smooth, without wrinkles	Smooth, even, flat
Unwritten	Not written down or recorded	Oral, traditional, verbal
Unyielding	Stiff, not flexible	Stubborn, inflexible, firm
Up	Higher than normal; moving to a higher position	Elevated, risen, lifted
Upbeat	Cheerful and optimistic	Cheerful, positive, optimistic
Upbound	Going upward	Ascending, upward, rising
Upcoming	About to happen	Forthcoming, imminent, approaching
Upcountry	In or to the inland parts of a country	Inland, rural, remote
Upcurved	Bent or curved upwards	Arched, uplifted, bent
Upended	Turned upside down	Inverted, flipped, overturned
Upfield	Toward the field or playing area	Forward, ahead
Upfront	Direct and honest	Frank, open, candid
Uphill	Going upward on a slope	Ascending, steep, arduous
Uplifted	Raised up	Elevated, lifted, raised
Upmarket	Designed for or appealing to affluent consumers	Luxurious, high-end, upscale
Upmost	Highest or most important	Topmost, highest, supreme
Upper	Located above another part	Higher, top, superior
Uppermost	Highest in position	Topmost, highest, supreme
Uppish	Behaving as if superior	Arrogant, haughty, conceited
Uppity	Self-important; arrogant	Snooty, conceited, haughty
Upraised	Lifted or held up	Elevated, lifted, raised
Upright	Standing vertically; honest	Vertical, ethical, honest
Uproarious	Very noisy and full of energy	Boisterous, rowdy, loud
Upscale	Relating to high quality or luxury	Luxurious, high-end, premium
Upsetting	Causing worry or distress	Disturbing, troubling, distressing
Upstage	At or toward the back of a stage; superior	Superior, aloof, haughty
Upstair	Situated on an upper floor	Upper-level, above, upper
Upstairs	Located on a higher floor	Upper-level, above, upper
Upstanding	Honest and respectable	Honorable, upright, decent
Upstart	Rising suddenly to prominence	Newcomer, self-made, ambitious
Upstream	Moving or situated in the opposite direction of flow	Against the current, upriver
Uptight	Overly tense or nervous	Anxious, tense, rigid
Up-to-date	Current and modern	Contemporary, current, modern
Up-to-the-minute	Very recent; the most recent	Latest, current, modern
Upturned	Turned or directed upward	Uplifted, upraised, inverted
Upward	Directed toward a higher place	Rising, ascending, climbing
Uraemic	Relating to uremia	Uremic, toxic, diseased
Urban	Relating to a city or town	City, metropolitan, municipal
Urbane	Polite and refined	Sophisticated, suave, courteous
Urbanised	Made urban in nature	Developed, metropolitan, modernized
Urbanized	Developed to be like a city	Modernized, city-like, developed
Urceolate	Shaped like an urn or pitcher	Urn-shaped, pitcher-shaped
Uremic	Relating to or affected by uremia	Toxic, diseased, renal
Urethral	Relating to the urethra	Urological, urinary
Urgent	Requiring immediate action	Pressing, critical, imperative
Uric	Relating to urine or uric acid	Urinary, renal
Uricosuric	Promoting the excretion of uric acid	Excretory, purgative
Urinary	Relating to urine	Urologic, renal, bladder-related
Urogenital	Relating to the urinary and genital organs	Genitourinary, reproductive
Ursine	Relating to bears	Bear-like, bear-related
Uruguayan	Relating to Uruguay or its people	Uruguayan, South American
Usable	Capable of being used	Functional, practical, operable
Useable	Capable of being used	Functional, practical, operable
Used	Having been utilized	Second-hand, pre-owned
Useful	Being of use or service	Helpful, beneficial, practical
Useless	Not serving any purpose	Worthless, ineffective, futile
Usual	Common or typical	Ordinary, normal, typical
Usufructuary	Relating to the legal right of using and enjoying the fruits or profits	Beneficial, entitled
Usurious	Charging exorbitant interest on a loan	Excessive, extortionate, greedy
Uterine	Relating to the uterus	Womb-related, maternal
Utile	Useful	Practical, functional, advantageous
Utilised	Put to use	Applied, employed, used
Utilitarian	Designed for practical use	Pragmatic, practical, functional
Utility	Relating to usefulness	Functional, practical, serviceable
Utilizable	Capable of being used	Usable, workable, operable
Utilized	Put into use	Applied, used, employed
Utmost	Greatest or most extreme	Highest, maximum, supreme
Utopian	Idealistic or visionary, usually in a theoretical sense	Idealistic, perfect, impractical
Utter	Complete or absolute	Complete, total, absolute
Utterable	Capable of being spoken	Speakable, expressible, verbalizable
Uttered	Spoken or expressed	Spoken, verbalized, stated
Uveal	Relating to the uvea of the eye	Ocular, eye-related
Uveous	Resembling the uvea	Ocular, eye-related
Uvular	Relating to the uvula	Throat-related, palatal
Uxorial	Relating to a wife	Wifely, marital
Uxorious	Excessively fond of or submissive to one's wife	Devoted, doting, affectionate
Uzbekistani	Relating to Uzbekistan or its people	Uzbek, Central Asian

Frequently Asked Questions

What are some common adjectives that start with U?

Some common adjectives that start with U include Unique, Uplifting, Understanding, Unwavering, and Upbeat.

What are some positive adjectives that start with U?

Positive adjectives that start with U include Unifying, Uplifting, Upstanding, and Unstoppable.

What is an adjective that describes a person and starts with U?

A common adjective that describes a person and starts with U is 'Understanding,' meaning someone who is empathetic and compassionate.