One entry found for improbable.

Entry Word: improbable
Function: adjective
Text: not likely to be true or to occur <it is improbable that we will be allowed to stay out all night>
Synonyms doubtful, dubious, far-fetched, flimsy, questionable, unapt, unlikely
Related Words implausible, impossible, inconceivable, incredible, last, unbelievable, unthinkable; absurd, outlandish, preposterous, ridiculous; outside, remote, slight
Near Antonyms believable, conceivable, credible, plausible; possible; liable
Antonyms likely, probable