[ im-plaw-zuh-buhl ]
/ ɪmˈplɔ zə bəl /


not plausible; not having the appearance of truth or credibility: an implausible alibi.


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Origin of implausible

First recorded in 1595–1605; im-2 + plausible

OTHER WORDS FROM implausible

im·plau·si·bil·i·ty, im·plau·si·ble·ness, nounim·plau·si·bly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for implausibility

/ (ɪmˈplɔːzəbəl) /


not plausible; provoking disbelief; unlikely

Derived forms of implausible

implausibility or implausibleness, nounimplausibly, 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