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.
The circumstances are implausible enough that O’Hara must carry the entire burden of convincing audiences of her own unlikely mistake. Kathryn Vanarendonk, Vulture, 30 Jan. 2026 Such a one-two force would make the Warriors a contender to beat any team in a playoff series, something that seemed implausible a couple of weeks ago when Butler tore his ACL. Joseph Dycus, Mercury News, 30 Jan. 2026 His & Hers is a generic mystery that tries hard to shock its audience, but is ultimately both predictable and, with its big twist at the end, laughably implausible. Erik Kain, Forbes.com, 29 Jan. 2026 But the first claim, about the number of the protesters, seemed to me highly implausible. Davood Moradian, The Atlantic, 26 Jan. 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 15 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

More from Merriam-Webster on implausible

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