improbable

[ im-prob-uh-buhl ]
/ ɪmˈprɒb ə bəl /

adjective

not probable; unlikely to be true or to happen: Rain is improbable tonight.

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Origin of improbable

From the Latin word improbābilis, dating back to 1590–1600. See im-2, probable

OTHER WORDS FROM improbable

WORDS THAT MAY BE CONFUSED WITH improbable

impossible, impracticable, impractical, improbable .
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for improbable

British Dictionary definitions for improbable

improbable
/ (ɪmˈprɒbəbəl) /

adjective

not likely or probable; doubtful; unlikely

Derived forms of improbable

improbability or improbableness, nounimprobably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012