Synonyms of improbable in English:

improbable


See definition of improbable

adjective

1‘it seemed improbable that the hot weather should continue much longer’

SYNONYMS

unlikely, not likely, doubtful, dubious, debatable, questionable, uncertain

difficult to believe, implausible, far-fetched, fanciful

unthinkable, inconceivable, unimaginable, unimagined, incredible

ANTONYMS

probable, certain

2‘the impression created by some advertisers is an improbable exaggeration’

SYNONYMS

inauthentic, unconvincing, unbelievable, incredible, ridiculous, absurd, preposterous

contrived, laboured, strained, forced

informal hard to swallow

ANTONYMS

believable, realistic