debatable

1 open to question or dispute it's always debatable which college football team is really number one, since there's more than one ranking system 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 Antonyms accomplished, certain, hands-down, inarguable, incontestable, incontrovertible, indisputable, indubitable, irrefragable, positive, questionless, settled, sure, unanswerable, unarguable, unchallengeable, undebatable, undeniable, unquestionable

2 giving good reason for being doubted, questioned, or challenged the debatable wisdom of going back for another helping from the buffet Synonyms doubtful, disputable, dodgy [chiefly British], doubtable, dubious, dubitable, equivocal, fishy, problematic (also problematical), queer, questionable, shady, shaky, suspect, suspiciousRelated Words alleged, so-called, supposed; moot; ambiguous, open, unclear; uncertain, undecided, undetermined; far-fetched, flimsy, improbable, unlikely, weakNear Antonyms decisive, definitive; clear, obvious, open-and-shut, positiveAntonyms certain, hands-down, incontestable, indisputable, indubitable, questionless, sure, undeniable, undoubted, unproblematic, unquestionable