unthinkable

un·think·able

adj \-ˈthiŋ-kə-bəl\

Definition of UNTHINKABLE

1

: not capable of being grasped by the mind

2

: being contrary to what is reasonable, desirable, or probable : being out of the question

— un·think·abil·i·ty \ˌən-ˌthiŋ-kə-ˈbi-lə-tē\ noun

— un·think·ably \ˌən-ˈthiŋ-kə-blē\ adverb

Examples of UNTHINKABLE

1. <to most people it seemed unthinkable that such a gentle man could be guilty of such awful crimes>

First Known Use of UNTHINKABLE

15th century

Related to UNTHINKABLE

Synonyms: fantastic (also fantastical), implausible, inconceivable, incredulous, unbelievable, uncompelling, unconceivable, unconvincing, unimaginable, incredible

Antonyms: believable, cogitable, conceivable, convincing, credible, creditable, imaginable, plausible, supposable, thinkable

Related Words: debatable, disputable, dodgy [chiefly British], doubtable, doubtful, dubious, dubitable, far-fetched, fishy, flimsy, questionable, shaky, suspect, suspicious, unlikely, unreasonable; hopeless, impossible; absurd, comical, farcical, laughable, ludicrous, outlandish, preposterous, ridiculous, risible, silly; indefensible, insupportable, untenable

Near Antonyms: likely, possible, probable; reasonable; certain, incontestable, indisputable, indubitable, questionless, sure, undeniable, undoubted, unquestionable

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Rhymes with UNTHINKABLE

undrinkable