improbable

• POS: Adjective
• HYPHEN: im=prob=a=ble

CIDE DICTIONARY

improbable, a. [L. improbabilis; pref. im- not + probabilis probable: cf. F. improbable. See Probable.].

 Not probable; unlikely to be true; not to be expected under the circumstances or in the usual course of events; as, an improbable story or event.  [1913 Webster]
"He . . . sent to Elutherius, then bishop of Rome, an improbable letter, as some of the contents discover."

OXFORD DICTIONARY

improbable, adj.
1 not likely to be true or to happen.
2 difficult to believe.

Derivative

improbability n. improbably adv.

Etymology

F improbable or L improbabilis (as IN-(1), PROBABLE)

THESAURUS

improbable

absurd, crazy, distant, doubtable, doubtful, dubious, dubitable, extraordinary, fanciful, farfetched, fishy, flimsy, forced, hard to believe, hardly possible, implausible, impossible, inconceivable, incredible, insane, ludicrous, mad, more than doubtful, more than expected, out-of-the-way, past expectation, peculiar, questionable, quite another thing, remote, ridiculous, something else again, strained, strange, sudden, thin, unannounced, unanticipated, unbelievable, unconvincing, undivined, unexpected, unforeseeable, unforeseen, unguessed, unheralded, unhoped for, unlikely, unpredictable, unpredicted, unprepared for, unpromising, unrealistic, unsubstantial, unthinkable, weak, weird, wild, without warning

ROGET THESAURUS

improbable

Improbability

N improbability, unlikelihood, unfavorable chance, bad chance, ghost of a chance, little chance, small chance, poor chance, scarcely any chance, no chance, bare possibility, long odds, incredibility, improbable, unlikely, contrary to all reasonable expectation, wild, far out, out of sight, outtasight, heavy, rare, unheard of, inconceivable, unimaginable, inimaginable, incredible, more than doubtful, strange, bizarre (uncomformable), the chances are against, aquila non capit muscas, pedir peras pal olmo.