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, naive,
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