Definitions

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.

It’s not the most likely scenario, but it’s not totally implausible either.

From Barron's • Jun. 11, 2026

The broader biographical facts are obeyed, but “Amadeus” is fundamentally ahistorical, and sometimes implausible: It is to be trusted only as television.

From Los Angeles Times • May 8, 2026

They also show transformations experts say are scientifically implausible in such short timeframes.

From BBC • May 7, 2026

Projections of flood damage, heat mortality, agricultural disruption and wildfire risk have rested on an implausible baseline that describes an imaginary, modeled future.

From The Wall Street Journal • Apr. 29, 2026

I stared at the Rockies from my bedroom window and was struck by how implausible they seemed.

From "Educated" by Tara Westover

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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