Ubiquitous, a. omnipresent.
ubiquity, n. omnipresence.
udder, n. mamma. Associated words: escutcheon, garget.
ugly, a. repulsive, unsightly, loathsome, hideous, grewsome, frightful; (Colloq.) crossgrained, ill-natured, unamiable, inaffable, surly, refractory, vicious, indocile, spiteful, sullen, morose; uncomely, hard-visaged, homely, ill-favored, hard-featured.
ulcer, n. fester, gathering, imposthume, pustule, ulceration. Associated words: sanies, sanious.
ulcerate, v. suppurate, fester, maturate.
ultimate, a. final, farthest, extreme.
ultimately, adv. finally.
ultra, a. extreme.
umbrage, n. resentment.
umpire, n. referee, judge, arbitrator, arbiter.
unabated, a. undiminished, unassuaged.
unable, a. incapable.
unabundant, a. scarce, deficient, rare.
unacceptable, a. objectionable, unwelcome, undesirable.
unaccountable, a. incomprehensible, inexplicable, inscrutable.
unaccustomed, a. unfamiliar, unwonted, unused.
unacquainted, a. unfamiliar, strange.
unadulterated, a. unsophisticated, unalloyed, pure.
unadvised, a. imprudent, unwise, indiscreet, inconsiderate.
unaffected, a. unmoved, untouched, unimpressed; artless, naïve, sincere, natural, unfeigned.
unafraid, a. undaunted, unappalled, unabashed, undismayed.
unalterable, a. immutable, unchangeable.
unambitious, a. unenterprising, indifferent.
unamiable, a. cross, ungracious, surly, unfriendly, irascible.
unanimity, n. unison, accord, agreement.
unanswerable, a. irrefutable, incontrovertible.
unappeasable, a. insatiate, insatiable, unquenchable, implacable.
unappreciable, a. imperceptible.
unapproachable, a. inaccessible, distant.
unarmed, a. defenseless, unguarded, unprotected.
unasked, a. unsolicited, voluntary, free-will.
unassailable, a. impregnable, invincible, secure, invulnerable.
unassorted, a. mixed, promiscuous, indiscriminate.
unatonable, a. inexpiable, irremissible.
unattainable, a. unachievable, impracticable, impossible.
unauthentic, a. spurious, supposititious, uncanonical, apocryphal, fictitious.
unavailing, a. futile, nugatory, ineffectual, abortive, vain, bootless.
unavoidable, a. inevitable, unpreventable, ineludable.
unaware, a. unconscious, unmindful, insensible.
unbearable, a. intolerable, insufferable, unendurable.
unbecoming, a. inappropriate, unseemly, unsuitable, indecorous.
unbegotten, a. self-existent.
unbelief, n. incredulity, skepticism, doubt, infidelity, distrust, suspicion.
unbelievable, a. incredible, implausible, fabulous.
unbeliever, n. doubter, skeptic, infidel, free-thinker, nullifidian.
unbelieving, a. incredulous, doubtful, skeptical, nullifidian.
unbend, v. relax.
unbending, a. inflexible, unyielding, rigid, unpliant, resolute, incompliant.
unbiased, a. unprejudiced, impartial, unjaundiced, neutral, disinterested.
unbidden, a. unasked, uninvited; spontaneous, voluntary, volitional.
unblamable, a. blameless, inculpable, irreprehensible, innocent.
unblushing, a. shameless, unabashed, brazen-faced, indecent, immodest.
unbosom, v. confess, reveal, divulge.
unbounded, a. illimitable, boundless, unlimited, limitless, immeasurable, vast, infinite, immense.
unbreakable, a. infrangible; inviolable (said of a promise or vow).
unbreakableness, n. infrangibility; inviolability.
unbreathable, a. irrespirable.
unbridled, a. unrestrained, uncurbed, uncontrolled, licentious, immoderate.
unbroken, a. whole, intact; inviolate, inviolated; undisturbed, sound, profound; wild, untamed.
unburnable, a. incombustible, asbestic, incremable.
unbury, v. exhume, disentomb, disinter.
unburying, n. exhumation, disentombment, disinterment.
uncanny, a. weird, eerie.
uncanonical, a. apocryphal, unauthentic.
unceasing, a. incessant, perpetual, perennial, ceaseless.
unceremonious, a. informal, unconstrained; bluff, blunt.
uncertain, a. distrustful, hesitating; dubious, precarious, problematical, insecure; equivocal, ambiguous, indefinite, irresolute, inconstant, fickle, variable, capricious; fallible.
uncertainty, n. distrust, hesitation, doubt, dubiousness, dubiety, incertitude; irresolution, variableness, inconstancy, capriciousness; ambiguity, indefiniteness; contingency, fortuity; fallibility; suspense.
unchangeable, a. immutable, invariable, changeless, stereotyped, unalterable, unmodifiable, permanent, constant.
unchanging, a. unvarying, permanent.
uncharitable, a. illiberal, intolerant, ungenerous, bigoted, censorious.
unchaste, a. incontinent, impure, lewd, wanton, immoral.
unchastity, n. incontinence, wantonness, lechery, licentiousness, lewdness, impurity.
unchecked, a. unbridled, unrestrained, unhampered, untrammeled, uncurbed.
unchurch, v. excommunicate.
uncivil, a. discourteous, rude, churlish, boorish, brusque, impolite.
uncivilized, a. savage, barbarous, unreclaimed, benighted.
unclassifiable, a. nondescript.
uncle, a. Associated word: avuncular.
unclean, a. soiled, dirty, foul, filthy, nasty, uncleanly; tref (Jewish); polluted, defiled, impure.
uncommon, a. unusual, singular, rare, unique, queer, strange, odd, anomalous, exceptional, abnormal, variant, nondescript, extraordinary, noteworthy, remarkable, aberrant.
uncommunicative, a. reserved, taciturn, reticent, secretive.
uncompelled, a. voluntary, spontaneous, gratuitous, unconstrained, volitional.
uncomplaining, a. resigned, patient, forbearing, long-suffering, meek.
uncomplimentary, a. unflattering, frank, derogatory, blunt.
uncompromising, a. inflexible, irreconcilable, intransigent, firm.
unconcern, n. indifference, nonchalance, apathy, disinterestedness.
unconcerned, a. indifferent, nonchalant, cool, apathetic, disinterested.
unconditional, a. absolute, unqualified, unrestricted, carte blanche.
uncongenial, a. disagreeable, unpleasant.
unconnected, a. disconnected, separate, isolated, abrupt, incoherent.
unconquerable, a. invincible, insuperable, impregnable, indomitable, inexpugnable.
unconscionable, a. unreasonable, inordinate, exorbitant, excessive.
unconscious, a. unaware, insensible; comatose; ingenuous, artless, naïve.
unconsciousness, n. insensibility; coma.
unconstrained, a. spontaneous, uncompelled, voluntary, natural.
uncontradictable, a. incontrovertible, indisputable, incontestable.
uncontrollable, a. ungovernable, irrepressible.
unconvincing, a. inconclusive.
uncouple, v. disconnect, detach, disjoin, loose.
uncourtly, a. rude, gawky, ungraceful, awkward, inelegant.
uncouth, a. awkward, clumsy, rude, ungainly, loutish, gawky, ungraceful.
uncover, v. disclose, reveal, expose, show.
unction, n. anointing; unguent, ointment; fervor, emotion, fervency, enthusiasm.
uncultivated, a. untilled, fallow.
uncultured, a. unlettered, ignorant; philistine.
undaughterly, a. unfilial.
undecaying, a. imperishable, amaranthine, perennial, undying, fadeless; imputrescible, incorruptible.
undeceive, v. disabuse, disillusionize, disillusion.
undeceiving, n. disillusion, disillusionment.
undecided, a. unsettled, pending; wavering, irresolute, dubious, controvertible.
undecipherable, a. illegible.
undefinable, a. unexplainable, undeterminable.
undefined, a. vague, indefinite, obscure; boundless, limitless.
undemonstrative, a. staid, quiet, demure, phlegmatic, sedate.
undeniable, a. incontestable, indisputable, unquestionable, indubitable, irrefragable, incontrovertible, unimpeachable.
under, prep. beneath, below, subordinate, inferior, subject to.
under, a. subordinate, subaltern, inferior, subjacent.
underbrush, n. undergrowth, jungle.
underground, a. subterranean, subterraneous, subterrene, subterrestrial.
underhand, a. underhanded, surreptitious, clandestine, covert.
underhand, adv. clandestinely, covertly, secretly, surreptitiously.
underhanded, a. covert, clandestine, surreptitious, underhand.
underline, v. underscore.
underling, n. subordinate, inferior, understrapper.
underlying, a. fundamental, basic.
underrate, v. underestimate, undervalue, underprize.
understand, v. comprehend, apprehend, grasp, discern.
understandable, a. comprehensible, intelligible.
understanding, n. comprehension, discernment, apprehension; accord, entente, harmony, agreement. Associated word: tacit.
under the rose. secretly, privately, confidentially, sub rosa.
undervalue, v. depreciate, vilipend, despise; underrate, underestimate.
under water. submarine, subaquatic, subaqueous, submerged.
underwear, n. underclothing; lingerie.
underwrite, v. insure; subscribe.
undeserved, a. unmerited, unjust.
undeserving, a. unworthy, unmeritorious, indign.
undesigned, a. unpremeditated, unintentional, accidental.
undesigning, a. artless, guileless, sincere.
undesirable, a. inexpedient; objectionable, unacceptable, ineligible.
undetermined, a. unsettled, irresolute, wavering, indeterminate, abeyant.
undeveloped, a. in embryo, embryonic, immature, abeyant, embryo, imperfect; atrophied, dwarfed, rudimentary, stunted, abortive, puny.
undevelopment, n. immaturity; atrophy, abortion; embryo.
undignified, a. unseemly, unbecoming, groveling, servile, obsequious.
undiminished, a. unabated, unlessened.
undiscernible, a. imperceptible, indiscernible.
undisputable, a. incontrovertible, incontestable, indisputable, undeniable.
undissolvable, a. insoluble, indissolvable, indissoluble.
undo, v. reverse, annul, nullify, abrogate, neutralize, invalidate; loose, unfasten, disentangle; impoverish, ruin.
undoing, n. reversal, annulment, invalidation, abrogation; impoverishment, ruin.
undoubted, a. indubitable, unquestioned, unchallenged, undisputed.
undoubting, a. sure, confident, sanguine, implicit.
undress, n. dishabille, negligee.
undress, v. disrobe, strip, divest, doff, disarray.
undressing, n. disrobing, stripping.
undue, v. unreasonable, immoderate, exorbitant, excessive, disproportioned.
undutiful, a. disobedient, unfilial.
undying, a. deathless, immortal.
unearth, v. uncover, disclose, ferret out.
unearthly, a. weird, supernatural, preternatural, eerie, apalling, terrific.
uneasiness, n. restlessness, inquietude, perturbation, anxiety, agitation, malaise.
uneasy, a. restless, restive, anxious, perturbed, impatient.
uneatable, a. inedible, incomestible.
uneducated, a. illiterate, benighted. See ignorant.
unemotional, a. phlegmatic.
unendurable, a. intolerable, insufferable.
unequal, a. unmatched, uneven, disparate; ill-balanced, disproportioned, incommensurate, inequitable; inequable, irregular; inadequate, insufficient.
unequaled, a. unmatched, unexampled, incomparable, superior, preëminent, peerless, unsurpassed, unrivaled, exceeding, superlative, sans pareil.
unequalness, n. inequality, unevenness, disproportion, inadequacy.
unerasable, a. indelible, inerasable, permanent.
unerring, a. certain, sure, unfailing, infallible, inerrable, impeccable.
unescapable, a. inevitable, unavoidable.
unessential, a. nonessential, immaterial, unnecessary.
uneven, a. jagged, rugged, rough, hummocky, humpy, protuberant, unequal.
unexcelled, a. unequaled, unsurpassed, superior, supreme.
unexcitable, a. imperturbable, phlegmatic.
unexhaustible, a. exhaustless, inexhaustible.
unexpected, a. unforeseen, unanticipated, unlooked for.
unexperienced, a. inexperienced, unpracticed.
unexplainable, a. inexplicable, inscrutable, uninterpretable.
unexpressible, a. inexpressible, unutterable, ineffable.
unextinguishable, a. unquenchable, insuppressible.
unfading, a. perennial, amaranthine, permanent, enduring.
Unfailing, a. sure, certain, constant, inexhaustible, infallible, inevitable.
unfair, a. unjust, partial, unconscionable, inequitable, disingenuous.
unfairness, n. injustice, inequity, partiality.
unfaithful, a. disloyal, faithless, perfidious, undutiful, renegade, apostate, recreant, derelict, false, treacherous, traitorous, treasonable, untrustworthy, pervert, inconstant, unsteadfast, fickle.