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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.

Some appear implausible, while others are in tension with one another, making the off-balance-sheet treatment look questionable.

From The Wall Street Journal

A 2023 study of a similar scheme in neighbouring Kenya by Survival International, an NGO supporting Indigenous communities around the world, found it was "highly implausible" that the new grazing regime was actually being implemented.

From Barron's

Proud, who started Substrate three years ago after running startups that made sleep-tracking devices and supply-chain software, says he is aware his plans will strike many in the semiconductor business as wildly implausible.

From The Wall Street Journal

A revelation about her relationship to Susan’s hired bully is both predictable and implausible.

From The Wall Street Journal

Mably said it was "implausible" that Soldier F could not recall whether or not he opened fire during the incident, and insisted that the witness statements were consistent.

From Barron's

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.