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.
Instead, and through no fault of any of the actors, this development feels more like an implausible stretch and a cheap way to introduce more chaos into the picture. Elena Lazic, Variety, 26 June 2026 That doesn’t make the technology implausible. Allison Palmer, Miami Herald, 22 June 2026 The conditions that once made orbital solar implausible no longer exist. Brigitte Bren, Chicago Tribune, 21 June 2026 The Islamic Republic has always claimed that its domestic opponents were stooges of Israel and the United States, even when those charges were plainly implausible. Laura Secor, The Atlantic, 16 June 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

Browse Nearby Words

Cite this Entry

“Implausible.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/implausible. Accessed 2 Jul. 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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster