Thesaurus.com
Dictionary.com
Showing results for implausible. Search instead for implausi.
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.

Police said he gave "implausible accounts" as to how the injuries had been caused.

From BBC • Feb. 13, 2026

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

From Salon • Jan. 18, 2026

How did this implausible turn of events come to pass?

From Slate • Jan. 13, 2026

Mr. Stephens comments in a way that exalts the passage’s author: “Given this statement, it seems implausible that . . . Marcus bowed to trumpery.”

From The Wall Street Journal • Jan. 11, 2026

Taken literally, this assertion seems implausible, and historians’ skepticism seems merited.

From "1491" by Charles C. Mann

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.