Thesaurus
questionable
adjective
Synonyms and Antonyms of QUESTIONABLE
1
giving good reason for being doubted, questioned, or challenged <the runner's unexpected first-place finish is questionable, so a drug test has been ordered>
Synonyms debatable, disputable, dodgy [chiefly British], doubtable, dubious, dubitable, equivocal, fishy, problematic (also problematical), queer, questionable, shady, shaky, suspect, suspicious
Related Words alleged, so-called, supposed; moot; ambiguous, open, unclear; uncertain, undecided, undetermined; far-fetched, flimsy, improbable, unlikely, weak
Antonyms certain, hands-down, incontestable, indisputable, indubitable, questionless, sure, undeniable, undoubted, unproblematic, unquestionable
2
not likely to be true or to occur <it's questionable that he will show up tonight considering all the bad weather we're having>
Related Words implausible, impossible, inconceivable, incredible, unbelievable, unimaginable, unthinkable; absurd, bizarre, crazy, fantastic (also fantastical), foolish, insane, nonsensical, odd, outlandish, preposterous, ridiculous, unreal, wild; outside, remote, slight
Near Antonyms believable, conceivable, credible, earthly, imaginable, plausible; possible, potential; liable
3
open to question or dispute <whether it will rain today or not is questionable>
Synonyms arguable, controvertible, disputable, doubtable, doubtful, issuable, moot, negotiable, questionable
Related Words contradictable, refutable; controversial, debated, disputed; dubious, iffy, inconclusive, indecisive, problematic (also problematical), shaky, uncertain; academic (also academical), hypothetical, speculative, theoretical (also theoretic); ambiguous, equivocal
Near Antonyms irrefutable; definite; unambiguous, unequivocal; absolute, clear, conclusive, decisive; uncontested, undisputed
Seen & Heard
What made you want to look up questionable? Please tell us where you read or heard it (including the quote, if possible).