implausible

[im-plaw-zuh-buhl] / ɪmˈplɔ zə bəl /

ADJECTIVE

not likely

Synonyms

STRONGEST

dubious farfetched flimsy impossible improbable inconceivable incredible unbelievable unconvincing unreasonable

WEAK

doubtful far-out fishy for the birds full of holes obscure problematic puzzling reachy suspect thin too much unsubstantial weak won't hold water won't wash

Antonyms

STRONGEST

believable convincing credible likely plausible possible realistic reasonable tenable

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.

Air Force and combat planner, said the explanation seemed implausible because of the rigorous methodology by which planners review targets.

From The Wall Street Journal • Mar. 6, 2026

Aswath Damodaran, the so-called ‘dean of valuation,’ said a popular characterization of a dystopian AI future of displacement and disruption was implausible.

From MarketWatch • Mar. 5, 2026

The judge said Motin's version of events was "extremely implausible".

From BBC • Feb. 5, 2026

But those implausible sci-fi scenarios, believe it or not, are nowhere near the worst-case possibilities.

From Salon • Jan. 18, 2026

The very idea of a color broadcast was so implausible that Alvarez secreted a small magnet in his pocket to verify that the picture was actually produced by electrons striking a phosphor screen.

From "Big Science" by Michael Hiltzik

Vocabulary lists containing implausible

Grade 9, List 6

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The Namesake

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Summer of the Mariposas

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