implausible
Americanadjective
adjective
Other Word Forms
Etymology
Origin of implausible
Explanation
Something that's implausible is farfetched or unlikely. If it's 3 pm and you still have to study for three exams and write an essay before midnight, it’s implausible that you’ll also have time to watch a movie. The adjective implausible breaks down into im, meaning “not,” and plausible, meaning "likely." So it simply means "not likely." Implausible ideas or stories usually get high marks for creativity, but they're just too crazy to be believable. But as philosopher René Descartes noted, “One cannot conceive anything so strange and so implausible that it has not already been said by one philosopher or another.”
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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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.
When the skin has collapsed into your palm like a deflated balloon, you lift the box grater and discover an almost implausible amount of ruby pulp underneath it.
From Salon ● Aug. 1, 2026
"AI memory demand remains ferocious, supply remains tight, and the major memory makers are enjoying margins that would have looked implausible only a few years ago."
From Barron's ● Jul. 7, 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
“Do you expect me,” said Cutie slowly, “to believe any such complicated, implausible hypothesis as you have just outlined? What do you take me for?”
From "I, Robot" by Isaac Asimov
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
