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Synonyms

implausible

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

adjective

  1. not plausible; not having the appearance of truth or credibility.

    an implausible alibi.
    Synonyms:
    unbelievable, improbable, unlikely
implausible British  
/ ɪmˈplɔːzəbəl /

adjective

  1. not plausible; provoking disbelief; unlikely

"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

Other Word Forms

  • implausibility noun
  • implausibleness noun
  • implausibly adverb

Etymology

Origin of implausible

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Mr. Stephens comments in a way that exalts the passage’s author: “Given this statement, it seems implausible that . . . Marcus bowed to trumpery.”

From The Wall Street Journal

Still, legal experts warn that even implausible legal threats can have consequences.

From Barron's

It seems implausible that Chalamet was immersed in table tennis while also learning to sing and play guitar for the role of Bob Dylan in “A Complete Unknown.”

From Los Angeles Times

In an August 2023 court filing, special counsel Jack Smith described the allegation as “implausible, if not ludicrous.”

From The Wall Street Journal

While Alphabet is still a ways behind Nvidia, becoming the No. 1 company in the market by next year isn’t implausible.

From MarketWatch

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.