Synonyms of implausible in English:

implausible


See definition of implausible

adjective

1‘they despaired of his adherence to implausible theories’

SYNONYMS
unlikely, not likely, improbable, questionable, doubtful, debatable
hard to believe, unconvincing, far-fetched, unrealistic, incredible, unbelievable, unimaginable, inconceivable, fantastic, fanciful, ridiculous, absurd, preposterous
informal hard to swallow, cock and bull, tall
ANTONYMS

plausible, convincing