unfaithfulness, n. disloyalty, perfidy, apostasy, recreancy, inconstancy, treachery, treason, bad faith, dereliction, fickleness, defection.

unfaltering, a. steadfast, unwavering, unswerving.

unfamiliar, a. unaccustomed, strange, novel; inconversant, unacquainted.

unfathered, a. fatherless; bastard, illegitimate.

unfathomable, a. abyssmal, immeasurable; inscrutable.

unfavorable, a. adverse, inimical, unpropitious, inauspicious, malign, derogatory, hostile.

unfeathered, a. unfledged, callow, squab.

unfeeling, a. insensible, insensate, insentient, numb, apathetic, impassible, impassive; stoic, callous, cruel, stern, incompassionate, unpitying, brutal, inclement.

unfeelingness, n. insensibility, impassibility, impassivity, torpidity, numbness, apathy; unkindness, cruelty, stoicism, incompassion, inclemency.

unfeigned, a. genuine, sincere, unaffected, unassumed.

unfinished, a. incomplete.

unfit, a. unsuitable, ineligible, inappropriate, unqualified, incompetent, inapt, inept.

unfit, v. disqualify, incapacitate, disable.

unfitness, n. ineligibility, unsuitableness, incompetency, irrelevance, disqualification.

unflattering, a. uncomplimentary, derogatory, frank.

unfledged, a. callow, unfeathered, squab.

unflinching, a. resolute.

unfold, v. unfurl, expand, evolve, unroll; disentangle, unravel, resolve; divulge, disclose, reveal, elucidate.

unfoldment, n. evolution, evolvment, expansion, unrolling; disentanglement, interpretation, explanation.

unforced, a. spontaneous, voluntary, optional, unconstrained.

unforgivable, a. unpardonable, irremissible, inexpiable.

unforgiving, a. implacable, irremissive, relentless.

unfortunate, a. unlucky, unsuccessful, disastrous, ill-starred, ill-fated.

unfounded, a. baseless, groundless.

unfriendliness, n. enmity, inimicalness, hostility, disfavor, antipathy, disaffection, alienation, estrangement, unfriendship.

unfriendly, a. hostile, ill-disposed, inimical, malign, unamicable, disaffected, alienated, estranged, antagonistic, unfavorable, adverse.

unfruitful, a. unproductive, effete, unprolific, infertile, acarpous.

ungainly, a. awkward, gawky, ungraceful, lumbering, loutish, wooden, uncouth.

ungenerous, a. illiberal, narrow, sordid, uncharitable, stingy.

unglue, v. deglutinate.

ungodly, a. godless, impious, irreverent, profane, unrighteous.

ungovernable, a. unruly, unmanageable, refractory, intractable, mutinous, impotent, irrepressible, rampant, unbridled, impetuous.

ungraceful, a. awkward, uncourtly, clumsy, uncouth, lumbering, ungainly, wooden, gawky.

ungrateful, a. ingrateful, unthankful; disagreeable, offensive.

ungratefulness, n. ingratitude.

ungrateful person. ingrate.

unguarded, a. defenseless, unprotected; incautious, unwary.

unhair, v. depilate.

unhairing, n. depilation. Associated word: depilatory.

unhallowed, a. unsanctified, profane.

unhandy, a. inconvenient; clumsy, awkward, maladroit.

unhappiness, n. infelicity, misery, distress, sorrow, woe.

unhappy, a. infelicitous, unfortunate; miserable, wretched, sad, sorrowful, disconsolate, woeful, distressed, heart-sick, mournful, lugubrious; deplorable, calamitous, distressing, grievous, inauspicious, unpropitious, malign.

unharmed, a. unscathed, inviolate, uninjured, unhurt, intact, scathless.

unharmonious, a. inharmonious, discordant, dissonant, harsh.

unhealable, a. insanable, incurable.

unhealthful, a. unwholesome, insalubrious, unsanitary, unhealthy, morbific, pestiferous.

unhealthfulness, n. insalubrity, unwholesomeness.

unhealthy, a. unhealthful, unwholesome, insalubrious, noxious, noisome, pestiferous, pernicious, unsanitary, unhygienic, morbid, morbific, pestilent, insalutary; sickly, unsound, diseased, morbid, invalid.

unheard of. unprecedented, exceptional; unknown, obscure.

unheeded, a. disregarded, ignored, unnoticed.

unholy, a. unhallowed, unconsecrated, profane, impious, evil, ungodly.

unhonored, a. inglorious, unsung, unrenowned, obscure.

unhurt, a. See unharmed.

uniform, a. unvarying, invariable, constant, undeviating; consonant, consistent. Antonyms: diverse, difform, anomalous, variant, heterogeneous, variable.

uniform, n. livery, dress, regimentals.

uniformity, n. sameness, even tenor; invariability, regularity, equableness, conformity, consonance, consistency. Antonyms: diversity, variation, anomaly.

unimaginative, a. matter-of-fact, prosaic, literal, practical, unromantic.

unimportance, n. immateriality, insignificance, triviality, paltriness.

unimportant, a. immaterial, insignificant, trivial, paltry.

unimpressible, a. unimpressionable, impassible, stoical, impassive.

unintentional, a. accidental, unpremeditated, fortuitous, undesigned.

union, n. coalition, combination, merger, fusion, unification, incorporation, conjunction, amalgamation, coalescence, junction, league, confederacy, federation, alliance; agreement, concurrence, unison. Antonyms: disunion. See separation.

unique, a. unmatched, unexampled.

unite, v. join, combine, annex, associate, link, couple, yoke, splice; consolidate, merge, amalgamate, fuse, confederate, unify, coalesce, concur, coöperate.

united, a. combined, incorporate, federated, confederate, affiliated, unified, blended, leagued, conjugate, yoked, amalgamated.

unity, n. oneness, singleness; concord, harmony, agreement, uniformity, unison, concert.

universal language. pasilaly; Esperanto.

universal writing. pasigraphy.

unjust, a. unfair, inequitable, iniquitous, unmerited.

unjustifiable, a. indefensible, inexcusable, unwarrantable.

unkind, a. cruel, harsh, austere, rigorous, incompassionate, inclement, brutal.

unkindness, n. cruelty, brutality, severity, incompassion, incivility, disfavor.

unknowable, a. incognizable, incognoscible, unascertainable, unintelligible, incomprehensible.

unknowingly, adv. unwittingly, ignorantly, unconsciously, inadvertently.

unknown, a. obscure, inglorious, unrenowned, nameless, undistinguished; unascertained, unexplored, unapprehended; anonymous.

unknown person. stranger, ignote.

unladylike, a. hoidenish, pert, ill-bred.

unlawful, a. illegal, illicit, contraband, illegitimate, unlicensed.

unleavened, a. azymous.

unleavened bread. azym.

unlike, a. dissimilar, different, diverse, sundry, variant, heterogeneous, unique, nondescript.

unlikelihood, n. improbability, unlikeliness.

unlikely, a. improbable; unpromising.

unlikeness, n. dissimilarity, dissimilitude, difference, contrast.

unlimited, a. limitless, illimitable, infinite, absolute, unbounded.

unload, v. disburden, unlade, relieve.

unlooked-for, a. unexpected, unanticipated, unforeseen, chance.

unlovely, a. uncomely, homely, plain, unattractive, repulsive.

unlucky, a. unfortunate, luckless, ill-starred, unhappy, untoward.

unmaidenly, a. hoidenish, rude, boisterous, pert.

unman, v. emasculate, castrate; dishearten, discourage, unnerve, intimidate; emolliate, effeminate.

unmanageable, a. ungovernable, intractable, refractory, fractious; cumbersome, unwieldy.

unmanly, a. ignoble, cowardly, mean; womanish, effeminate cockney.

unmanned, a. emasculated, effeminate.

unmannerly, a. impolite, discourteous, boorish, uncivil, rude.

unmanning, n. emasculation, castration; debilitation; discouragement.

unmarried, a. single, celibate.

unmarried man. bachelor, celibate, agamist.

unmarried woman. spinster.

unmatchable, a. peerless, matchless, incomparable, inimitable, unique.

unmatched, a. unequaled, matchless, incomparable, nonpareil.

unmeaning, a. meaningless, senseless; insignificant, inexpressive.

unmeant, a. unintentional.

unmelodious, a. discordant, harsh, dissonant, inharmonious, unmusical.

unmeltable, a. infusible.

unmerciful, a. cruel, pitiless, merciless, inclement, unsparing, stern, unrelenting, ruthless, brutal, incompassionate, unkind; (Colloq.) excessive, fabulous, exorbitant, immoderate.

unmindful, a. oblivious, inadvertent, inattentive, heedless.

unmistakable, a. manifest, palpable, obvious, patent, evident, distinct, unambiguous.

unmixable, a. immiscible.

unmixableness, n. immiscibility.

unmovable, a. fixed, stable, immobile.

unmoved, a. calm, dispassionate, indifferent, unstirred, impassive, stoical.

unmusical, a. inharmonious, discordant.

unnatural, a. abnormal, monstrous, anomalous, aberrant, variant, preternatural, exceptional, irregular; artificial, affected, feigned, assumed simulated, constrained.

unnecessary, a. superfluous, useless, needless, uncalled for, expletive, redundant, supernumerary.

unneighborly, a. unsociable, exclusive, distant, unaccommodating.

unnoticed, a. unheeded, unnoted, surreptitious.

unobjectionable, a. unexceptionable.

unobtainable, a. unprocurable, unattainable, inaccessible.

unobtrusive, a. unpretentious, unassuming, modest.

unorthodox, a. heterodox.

unpacifiable, a. implacable, unappeasable, unreconcilable.

unpaid, a. outstanding, payable, due, unliquidated.

unpardonable, a. inexpiable, unatonable, irremissible, unforgivable.

unpassable, a. impassable.

unpenetrable, a. impenetrable, impervious, imperforable.

unpierceable, a. imperforable, impenetrable.

unplanted, a. fallow.

unpleasant, a. disagreeable, uncongenial.

unplowed, a. fallow.

unpopular, a. disliked, obnoxious, odious, offensive.

unpopularity, n. odium, disesteem, obnoxiousness.

unpractical, a. impractical, visionary, Utopian.

unpraiseworthy, a. uncommendable, illaudable, indign.

unprejudiced, a. impartial, unbiased, unjaundiced.

unpremeditated, a. extemporaneous, offhand, impromptu, extempore.

unpretending, a. unobtrusive, modest, unpretentious, unostentatious.

unpretentious, a. unpretending.

unpreventable, a. unavoidable, inevitable.

unprincipled, a. unscrupulous.

unproductive, a. unfruitful, barren.

unprofessional, a. amateur.

unprofitable, a. unremunerative, profitless; futile, fruitless, unavailing.

unpromising, a. unlikely; inauspicious, unpropitious.

unqualified, a. incompetent, ineligible; absolute, unconditional.

unquenchable, a. unslakable, insatiate, insatiable, quenchless.

unquestionable, a. incontrovertible, irrefutable, incontestable, indubitable, obvious, indisputable.

unquestioned, a. undoubted, implicit.

unravel, v. disentangle, extricate, ravel; decipher, unfold.

unreachable, a. inaccessible.

unreadable, a. illegible.

unreal, a. fanciful, imaginary, visionary, unsubstantial, shadowy, chimerical, illusive, phantasmal, phantasmagorial.

unreasonable, a. irrational, absurd, unwise, preposterous, senseless; excessive, exorbitant, unfair, unconscionable, inordinate.

unreclaimable, a. irreclaimable, irretrievable, hopeless, incorrigible.

unrecognized, a. ignored, disregarded, unacknowledged.

unreconcilable, a. antagonistic, incompatible, irreconcilable, implacable, unpacifiable.

unrecoverable, a. irrecoverable, irreparable, irretrievable, irrecuperable.

unredeemed, a. forfeited, unransomed, unfulfilled.

unrefonnable, a. irreformable, incorrigible.

unrelenting, a. relentless, implacable, inexorable, remorseless, pitiless, unmerciful.

unreliable, a. untrustworthy, undependable, uncertain.

unremediable, a. irremediable.

unremitting, a. indefatigable, persevering, unceasing, constant.

unrepairable, a. irreparable.

unrepentant, a. impenitent, incontrite.

unreserve, n. frankness, candor, ingenuousness.

unreserved, a. frank, undissembling, candid, ingenuous; unconditioned, unlimited.

unresistible, a. irresistible.

unresisting, a. passive, submissive, long-suffering.

unrest, n. unquietness, restlessness, uneasiness, disquietude, inquietude.

unrestrained, a. unbridled, ungoverned, uncurbed, riotous, impotent, saturnalian, rampant; licentious, dissolute, profligate.

unrestraint, n. freedom, liberty, license, abandon.

unrestricted, a. unlimited, unfettered, uncircumscribed.

unrevivable, a. irrevivable, irresuscitable.

unrighteous, a. unholy, evil, iniquitous, wicked, vicious.

unrivaled, a. peerless, matchless, inimitable, incomparable, supreme.

unroll, v. unfold, unfurl, evolve.

unrolling, n. unfolding, unfurling, evolvement, evolution.

unromantic, a. prosaic, pragmatical, matter-of-fact, practical, literal.

unruly, a. turbulent, ungovernable, refractory, insubordinate, fractious, insurgent, indocile, disobedient, froward, vicious, intractable, rebellious.

unsafe, a. insecure, risky, perilous, dangerous, hazardous, imperiled, precarious.

unsafety, n. insecurity, danger, risk, peril, hazard, jeopardy.