presumptive

Synonyms

believable, credible, creditable, likely, plausible, probable;

Antonyms

far-fetched, implausible, improbable, incredible, unbelievable, unlikely, unplausible;

Near Antonyms

absurd, doubtful, dubious, fantastic (also fantastical), flimsy, outlandish, preposterous, questionable, ridiculous;

impossible, inconceivable, unimaginable, unthinkable;

skeptical, suspect, suspicious, uncertain, unsure;

hopeless, unworkable, useless;

Related Words

cogent, compelling, conclusive, convincing, decisive, effective, forceful, persuasive, satisfying, strong, telling;

acceptable, cogitable, conceivable, imaginable, possible, practical, reasonable;

dependable, reliable, trustworthy;

sophistic (or sophistical), specious;