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
debatable, disputable, dodgy [chiefly British], doubtable, doubtful, dubious, dubitable, equivocal, fishy, problematic (also problematical), queer, shady, shaky, suspect, suspicious
alleged, so-called, supposed
moot
ambiguous, open, unclear
uncertain, undecided, undetermined
far-fetched, flimsy, improbable, unlikely, weak
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
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
3
open to question or dispute
- whether it will rain today or not is questionable
contradictable, refutable
controversial, debated, disputed
dubious, iffy, inconclusive, indecisive, problematic (also problematical), shaky, uncertain
academic (also academical), hypothetical, speculative, theoretical (also theoretic)
ambiguous, equivocal
accomplished, certain, hands-down, inarguable, incontestable, incontrovertible, indisputable, indubitable, irrefragable, positive, questionless, settled, sure, unanswerable, unarguable, unchallengeable, undebatable, undeniable, unquestionable
