U

UGLY
Synonyms : Unattractive, unsightly, horrid, shapeless, gruesome, homely, pain, uncouth, monstrous, deformed, ghastly, horrible, ungainly.
Antonyms : Beautiful, charming, gracious, handsome, attractive, lovely, pretty, seemly.
Ultimate
Synonyms : Conclusive, last, farthest, final, extreme, eventual, decisive, definitive, terminal, latest.
Antonyms : Preliminary, introductory, initial, preparatory, beginning, opening.
Unable
Synonyms : Powerless, incapable, weak, impotent, incompetent.
Antonyms : Capable, potent, strong, skilled, able, competent, powerful.
UNALTERABLE
Synonyms : Unchangeable, immutable, constant, changeless, variable, permanent.
Antonyms : Revocable, variable, alterable, changeable, mutable, inconstant.
UNANIMITY
Synonyms : Unison, agreement, harmony, accord, concord.
Antonyms : Contention, difference, variance, disagreement, disharmony.
Unarmed
Synonyms : Exposed, naked, unguarded, defenceless, unprotected, inequipped, armless.
Antonyms : Covered, protected, guarded, armed, shielded, equipped, prepared, defended.
Unassailable
Synonyms : Safe, sure, firm, certain, impregnable, invincible, invulnerable, unassailable.
Antonyms : Unsure, infirm, conquerable, vulnerable, unsafe, assailable.
Unassuming
Synonyms : Humble, plain, unobtrusive, simple, modest, retiring, unpretentious.
Antonyms : Haughty, pretentious, ostentatious, arrogant, overbearing, patronising.
Unattractive
Synonyms : Horrifying, repulsive, ungainly, ugly, horrid, unseemly, undesirable, uninviting.
Antonyms : Gracious, attractive, inviting, beautiful, handsome, agreeable, desirable.
Unauthentic
Synonyms : False, fake, fictitious, pretended, unreliable, feigned, spurious.
Antonyms : Genuine, reliable, true, authentic, original, real.
Unaware
Synonyms : Unprepared, unacquainted, ignorant, uninformed, unknowingly, unintentionally.
Antonyms : Knowingly, voluntarily, intentionally, deliberately, on purpose, wittingly.
Unbecoming
Synonyms : Indecent, indecorous, unsuitable, unseemly, ugly, untimely, unbefitting.
Antonyms : Becoming, opportune, timely, seemly, favourable, suitable, fitting, appropriate.
Unblemished
Synonyms : Innocent, holy, sacred, immaculate, spotless, impeccable, pure, flawless, stainless, clean, undefiled, unspoilt, unsullied, untainted.
Antonyms : Flawed, unholy, impure, spotted, stained, defiled, tainted, corrupt, dirty, impure, unclean, spoilt, sullied.
UNCERTAIN
Synonyms : Inconstant, unreliable, precarious, fluctuating, fitful, irregular, changeable, indefinite, unsettled, dubious, doubtful, questionable, equivocal.
Antonyms : Stable, unchangeable, steady, permanent, reliable, trustworthy, regular, permanent, certain, indisputable, unquestionable, positive, undeniable, definite, incontestable.
Unbroken
Synonyms : Whole, full, entire, safe, sound, complete, undamaged, regular, even.
Antonyms : Divided, fragmented, partial, cracked, damaged, erratic, irregular, intermittent, interrupted, broken, occasional, uneven, shattered.
Uncivil
Synonyms : Unkind, rough, rude, coarse, boorish, brutal, impolite, ill-mannered, unmannerly.
Antonyms : Well-mannered, civilized, civil, kind, refined, polite, urbane, fine, courteous.
UNCLEAN
Synonyms : Squalid, foul, impure, dirty, sullied.
Antonyms : Unsoiled, clean, pure, unsullied, immaculate.
Uncomfortable
Synonyms : Unpleasant, miserable, displeasing, uneasy, grievous, disagreeable, cheerless, troublesome, painful, wretched, unhappy.
Antonyms : Cheerful, pleasant, comfortable, agreeable, easy, happy, convenient, snug, commodious, cosy.
Uncommon
Synonyms : Special, unusual, exceptional, extraordinary, noteworthy, rare, remarkable.
Antonyms : Mediocre, usual, frequent, common, ordinary, familiar, general, habitual, inferior.
UNCONCERNED
Synonyms : Cool, nonchalant, disinterested, apathetic, indifferent.
Antonyms : Interested, concerned, solicitous, anxious.
UNCONQUERABLE
Synonyms : Victorious, insuperable, invincible, Indomitable, impregnable.
Antonyms : Feeble, conquerable, domitable, powerless, meek, undefendable, weak, unsafe, assailable.
Uncontaminated
Synonyms : Untainted, unsullied, unspotted, pure, unpolluted, preserved, undefiled, germ-free.
Antonyms : Corrupted, impure, defiled, spoilt, polluted, blemished, flawed.
Uncontrollable
Synonyms : Irrepressible, governable, intractable, unruly, violent, unmanageable.
Antonyms : Meek, humble, manageable, governable, servile, amenable, docile, submissive, tractable.
Uncover
Synonyms : Bare, denude, disclose, discover, strip, unconceal, open, expose, reveal, show.
Antonyms : Close, cover up, cover, conceal, hide, clothe, keep under wraps, suppress.
Undaunted
Synonyms : Brave, valiant, fearless, courageous, gallant, bold, dashing, dauntless, undismayed.
Antonyms : Afraid, coward, dismayed, timid, timorous, fearful, chicken-hearted.
Undecided
Synonyms : Dubious, pending, unsettled, irresolute, hesitating, wavering, doubtful, unsure, uncertain.
Antonyms : Decided, determined, firm, settled, resolute, fixed, steadfast, sure, certain, unwavering, purposed, unflinching.
Undemonstrative
Synonyms : Calm, composed, silent, quiet, staid, sedate, placid, unexcitable, reserved.
Antonyms : Warm, excitable, emotional, expressive, friendly, affectionate, unreserved.
UNDER
Synonyms : Subordinate, below, beneath, lower, inferior, underneath.
Antonyms : Above, overhead, over.
Understand
Synonyms : Conceive, gather, grasp, interpret, appreciate, comprehend, apprehend, know, learn, perceive, realise, discern.
Antonyms : Misconstrue, miscomprehend, mistake, misapprehend, misunderstand, misinterpret, misconceive.
UNDERTAKING
Synonyms : Endeavour, trade, enterprise, contract, promise, engagement, venture.
Antonyms : Refusal, truancy, escapade, irresponsibility, avoidance.
Undesirable
Synonyms : Unacceptable, unpleasant, distasteful, unwanted, inadvisable, disagreeable, inconvenient.
Antonyms : Wanted, cherished, welcome, agreeable, desirable, acceptable, pleasant, tasteful.
Undignified
Synonyms : Ignoble, unbecoming, unseemly, mean, indecorous, ill-bred, ungainly.
Antonyms : Decorous, becoming, seemly, gainly, dignified, well-bred, gracious, graceful.
Undismayed
Synonyms : Brave, dauntless, fearless, bold, courageous, gallant, valiant, heroic.
Antonyms : Fearful, timid, timorous, coward, unheroic, afraid, ill-hearted.
Undisturbed
Synonyms : Tranquil, cool, composed, placid, serene, unruffled, unperturbed.
Antonyms : Perturbed, agitated, confused, confunded, ruffled, bothered, excited, disturbed, muddled, nervous, upset.
Undue
Synonyms : Immoderate, unwarranted, improper, unfitting, excessive, extreme, unjustified, ill-considered.
Antonyms : Moderate, fitting, proper, due, necessary, modest, suitable, justified, well-considered, appropriate.
Uneasy
Synonyms : Awkward, disturbing, confusing, restless, difficult, uncomfortable, troublesome, bothering, irritating, annoying, restore, unquite.
Antonyms : Content, fitting, suitable, restful, easy, comfortable, troublefree, convenient, smooth, tranquil, unruffled, unperturbed, undisturbed, quite, contended, unflustered.
Unexpected
Synonyms : Surprising, abrupt, unforeseen, sudden, unseen, unanticipated.
Antonyms : Anticipated, expected, foreseen.
UNFAIR
Synonyms : Partial, dishonest, wrongful, unjust, inequitable, biased.
Antonyms : Unprejudiced, natural, impartial, just, honest, equitable, fair, neutral, unbiased.
Unfaithful
Synonyms : Deceitful, fickle, false, treacherous, perfidious, untrue, disloyal, faithless, unreliable, untrustworthy, inconsistent.
Antonyms : Exact, faithful, loyal, steadfast, constant, true, trustworthy, reliable, staunch, trustworthy.
Unfamiliar
Synonyms : Unknown, uncommon, unusual, queer, unaccustomed, stranger, abnormal, exceptional.
Antonyms : Known, acquainted, normal, familiar, commonplace, average, conversant, well-known.
Unfavourable
Synonyms : Inimical, hostile, adverse,unfriendly, discouraging, inauspicious.
Antonyms : Friendly, encouraging, favourable, sympathetic, auspicious, beneficial.
Unfeeling
Synonyms : Unkind, callous, insensible, harsh, cruel, selfish, hard.
Antonyms : Merciful, compassionate, sensible, kind, considerate, sympathetic.
Unfit
Synonyms : Unsuitable, wrong, unqualified, incapable, sick, sickly, inapt, inappropriate, improper.
Antonyms : Healthy, well, qualified, capable, ready, strong, trustworthy, pertinent, suitable, fit, relevent, proper, appropriate.
Unfortunate
Synonyms : Disastrous, luckless, unhappy, miserable, troubled, unsuccessful, unlucky, ill-starred, star-crossed, calamitous.
Antonyms : Favourable, blessed, auspicious, happy, lucky,appropriate, fortunate, successful, timely, opportune.
Unfriendly
Synonyms : Hostile, opposed, unfavourable, inimical, antagonistic, adverse.
Antonyms : Favourable, encouraging, sympathetic, friendly,auspicious.
Unguarded
Synonyms : Jeopardized, unprotected, exposed, undefended, naked.
Antonyms : Defended, shielded, covered, protected, guarded, sheltered.
Unhappy
Synonyms : Melancholy, sorrowful, unfortunate, unlucky, inauspicious, disconsolate, afflicted, sad, miserable, calamitous, disastrous, distressed.
Antonyms : Auspicious, cheerful, fortunate, favourable, happy, content, joyful, suitable, lucky, blithe, gay, hilarious.
Unharmed
Synonyms : Unscathed, scatheless, immune, safe, unhurt, protected.
Antonyms : Harmed, wounded, scathed, injured, hurt.
Unholy
Synonyms : Corrupt, polluted, ungodly, impious, immoral, impure, evil, wicked, sinful, irreligious, profane, unrighteous, depraved.
Antonyms : Sacred, godly, good, moral, pure, pious, religious, ethical, holy, divine.
Uniform
Synonyms : Changeless, unchanging, steady, unvarying, undeviating, identical, consistent.
Antonyms : Changing, unsteady, wavering, varying, inconstant, irregular, uneven.
Unimaginative
Synonyms : Unintelligent, unromantic, unpoetical, dull, prosaic, unoriginal, uninnovative.
Antonyms : Fanciful, romantic, creative, poetic, imaginative, exciting, innovative, unusual, original.
Unimportant
Synonyms : Cheap, poor, petty, slight, trite, insignificant, trivial, unessential.
Antonyms : Vital, essential, major, significant, important, valuable, precious, chief, main.
Unintentional
Synonyms : By chance, unpremeditated, unplanned, accidental, casual, inadvertent.
Antonyms : Meditated, planned, intentional, deliberate, volunatry, willingly, knowingly.
UNION
Synonyms : Concert, juncture, cooperation, unification, coalition, unity, junction, combination, oneness.
Antonyms : Divison, separation, schism, divorce, analysis, disassociation, disconnection.
Unique
Synonyms : Rare, exceptional, special, particular, typical, uncommon, extra-ordinary, singular, unparallel, single.
Antonyms : Ordinary, unexceptional, regular, common, frequent, known.
UNITE
Synonyms : Connect, affix, append, combine, conjoin, coalesce, blend, join, knit, merge, associate.
Antonyms : Scatter, disjoin, unconnect, detach, disconnect, separate.
UNIVERSAL
Synonyms : International, complete, general, all-embracing, ubiquitores, world wide, whole, comprehensive, entire, total.
Antonyms : Sectarian, partisan, sectional, factional, partial, sectarian, parochial, reginal, fragmentary, exclusive, narrow, limited.
Unknown
Synonyms : Hidden, alien, mysterious, unfamiliar, undiscovered, unexplored, anonymous.
Antonyms : Revealed, unconcealed, familiar, frequent, known, discovered, explored, intimate.
Unlawful
Synonyms : Illegitimate, constitutional,Illegal, illicit, prohibited, unauthorised.
Antonyms : Legitimate, constitutional, legal, authorised, recognised.
Unlucky
Synonyms : Ill-favourable, unhappy, unsuccessful, luckless, inauspicious, unfortunate, hapless, ill-starred, calamitous, disasterous, ill-fated, fatal.
Antonyms : Fortunate, favoured, lucky, auspicious, successful.
Unmanageable
Synonyms : Unwieldy, vicious, awkward, unruly, inconvenient, difficult, cumbersome.
Antonyms : Controllable, docile, manageable, governable, tamable, tractable, convenient.
Unmoved
Synonyms : Collected, firm, fixed, steadfast, resolute, cool, constant, unwavering, unshaken.
Antonyms : Shaken, wavering, changeable, impressed, moved, affected, persuaded, swayed, transferred, touched.
Unnatural
Synonyms : Fabricated, man-made, abnormal, artificial, feigned, pretended.
Antonyms : Genuine, original, honest, normal, ordinary, unfeigned, Natural, unaffected, warm, unpretentious.
Unobtrusive
Synonyms : Modest, quiet, withdrawing, retiring, unpretentious, reserved, unassuming.
Antonyms : Blatant, assuming, pretentious, assertive, bold, highprofile, prominent, noticeable, obtrusive.
Unpleasant
Synonyms : Ugly, unattractive, repulsive, bad, ill natured, disagreeable, unagreeable, offensive, obnoxious, unpalatable.
Antonyms : Agreeable, pleasant, attractive, inviting, eye-catching, good-natured, congenial, delicious, likable, lovely, fine, nice, beautiful.
Unpractical
Synonyms : Ideal, ineffective, useless, unworkable, utopian, unable, unqualified.
Antonyms : Practical, practicable, useful, workable, qualified.
Unproductive
Synonyms : Useless, fruitless, unfertile, barren, sterile, futile, unprolific.
Antonyms : Productive, useful, fruitful, yielding, profitable, prolific, fertile.
Unreasonable
Synonyms : Irrational, excessive, extravagant, immoderate, absurd, foolish, silly.
Antonyms : Reasonable, modest, moderate, rational, logical, sensible, fair, just, wise, temperate.
Unrighteous
Synonyms : Impure, unholy, ungodly, irreligious, corrupt, depraved, evil, wicked, sinful, nefarious, heinous.
Antonyms : Holy, pure, innocent, religious, clean, innocent, righteous, virtuous, sacred, godly, divine.
Unsuccessful
Synonyms : Failure, fruitless, unfortunate, unauspicious, unfavoured, bootless, futile, unprofitable, vain, ineffectual.
Antonyms : Successful, fruitful, fortunate, favourable, auspicious, profitable, thriving, victorious, worthwhile, lucky, productive.
Unsympathetic
Synonyms : Unkind, merciless, apathetic, cruel, harsh, hard, heartless.
Antonyms : Kind, merciful, sympathetic, compassionate, soft, pitying.
Untainted
Synonyms : Spotless, blameless, pure, fine, undefiled, uncorrupted, stainless, unsullied, untarnished, innocent, clean.
Antonyms : Dirty, sullied, blemished, polluted, corrupted, stained, spotted, impure, impious.
Untidy
Synonyms : Dirty, defiled, spoiled, careless, disorderly, unkempt, slovenly, clumsy, awkward.
Antonyms : Tidy, clean, neat, orderly, unspoilt, well-kept, careful.
Untimely
Synonyms : Inopportune, unsuitable, inappropriate, unseasonable.
Antonyms : Opportune, suitable, timely, favourable, seasonable.
Untrue
Synonyms : False, deceitful, unfaithful, inaccurate, wrong, perfidious, faithless, tricky, unreliable, treacherous, erroneous.
Antonyms : True, honest, fair, reliable, faithful, right, accurate, constant, virtuous, honourable, loyal, real, genuine, original, truthful.
UNUSUAL
Synonyms : Remarkable, peculiar, uncommon, exceptional, rare, singular, special, extraordinary, abnormal, typical, curious.
Antonyms : Common, hackneyed, habitual, commonplace, normal, ordinary, frequent, average, conventional, unremarkable, familiar, routine,usual, traditional.
Unwary
Synonyms : Careless, negligent, hasty, hurried, indiscreet, heedless, mindless, unwise, uncautious, foolish, silly, injudicious.
Antonyms : Wary, careful, planned, well thought out, discreet, wise, judicious, prudent, cautious, intelligent, guarded.
Unwell
Synonyms : Sickly, diseased, ailing, ill, indisposed, sick, unfit, drooping.
Antonyms : Healthy, well, robust, blooming, fit, hale, hearty, flourishing.
Unwholesome
Synonyms : Injurious, harmful, unhealthy, unhygenic, bad, unsanitary, bad, contaminated, unclean.
Antonyms : Good, beneficial, germ-free, healthy, hygenic, sanitary, salubrious, wholesome, health-giving, nourishing.
UNWILLING
Synonyms : Disinclined, indisposed, loath, reluctant.
Antonyms : Eager, ardent, anxious, willing, disposed, keen.
Unworthy
Synonyms : Incapable, worthless, unskilled, unqualified, base, despicable, shabby, paltry, useless, fruitless, bad, contemptible.
Antonyms : Worthy, useful, fruitful, desirable, good, productive, profitable, honourable, creditable.
UPHOLD
Synonyms : Champion, back, support, maintain, defend.
Antonyms : Betray, drop, destroy.
Upright
Synonyms : Air, straight-forward, erect, perpendicular, just, honourable, virtuous, honest, trustworthy.
Antonyms : Unfair, unjust, wicked, vile, evil, dishonest, untrustworthy, bad, corrupt.
UPSET
Synonyms : Disturb, disrupt, disconcert.
Antonyms : Calm, relieve, soothe, relax.
URGE
Synonyms : Spur, force, impel, stimulate, incite, drive.
Antonyms : Discourage, warn, disposed, deter, disincline.
URGENT
Synonyms : Pressing, important, insistent, imperative, grave, crucial, decisive, critical,serious, momentous, vital, essential.
Antonyms : Inconsiderable, unimportant, trifling, insignificant, petty, trivial, minor, casual, feeble, uncrucial.
USE
Synonyms : Appliance, practise, utilisation, consumption, exercise, employ, avail, utility, application, employment.
Antonyms : Disuse, abuse, misuse, uselessness, loss, dumping, unemployment.
Useful
Synonyms : Advantageous, beneficial, essential, profitable, productive, servicable, helpful, precious, valuable, effective, worthy.
Antonyms : Useless, worthless, unhelpful, inadequate, ineffective, vain, unproductive, unbeneficial, productive, unprofitable, unfruitful.
USUAL
Synonyms : Customary, ordinary, regular, common accustomed, familiar, general, habituated, wonted.
Antonyms : Specific, unusual, unparalled, extra-ordinary, uncommon, single, occasional, unfamiliar, exceptional, new, strange, novel, peculiar.
UTILITY
Synonyms : Use, advantage, profit, policy, benefit, service, avail, usefulness, serviceableness.
Antonyms : Worthless, useless, disadvantageous, folly, unprofitableness.