implausible

adjective

im·​plau·​si·​ble (ˌ)im-ˈplȯ-zə-bəl How to pronounce implausible (audio)
Synonyms of implausiblenext
: not plausible : provoking disbelief
an implausible excuse
implausibility noun
implausibly adverb

Examples of implausible in a Sentence

She's been making implausible claims. He gave an implausible excuse for showing up late for work. The novel has an implausible ending.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Her reappearance five weeks later, her implausible account of being kidnapped, and the evidence of her trysting with a married man scorched her reputation and took down some high-profile public figures. Patt Morrison, Los Angeles Times, 21 Feb. 2026 Some of the suspects try to minimize their actions with euphemisms or paraphrases; others do so with explanations that the prosecutors find utterly implausible. Richard Brody, New Yorker, 19 Feb. 2026 The genre, Solomon notes, often employs highly-implausible plot devices to avoid dealing with the annoying aspects of living in space. Big Think, 19 Feb. 2026 Such a disintegration seems implausible for this iteration of Spurs under Ho, a project that seems to have finally evolved from its mushy underbelly into a clear and steadfast vision. Megan Feringa, New York Times, 9 Feb. 2026 See All Example Sentences for implausible

Word History

First Known Use

circa 1677, in the meaning defined above

Time Traveler
The first known use of implausible was circa 1677

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Cite this Entry

“Implausible.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/implausible. Accessed 27 Feb. 2026.

Kids Definition

implausible

adjective
im·​plau·​si·​ble (ˈ)im-ˈplȯ-zə-bəl How to pronounce implausible (audio)
: causing disbelief : not plausible
implausibility noun
implausibly adverb

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