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.
Pages made the scenario his own by pulling off an implausible catch in the most riveting of moments against the Toronto Blue Jays, while extending the 2025 MLB season into extra innings. Doug Padilla, Oc Register, 8 Mar. 2026 Barring six or seven victories in that time — a prospect that sits somewhere between highly implausible and impossible — those fixtures will count for nothing in sporting terms. Steve Madeley, New York Times, 7 Mar. 2026 This may have seemed implausible weeks ago. Jason D. Greenblatt, semafor.com, 4 Mar. 2026 This makes regime change implausible. Nick Paton Walsh, CNN Money, 26 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 16 Mar. 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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