controversial

I adjective arguable, at issue, at odds, at variance, confutable, contestable, controversus, controvertible, debatable, dialectic, disputable, doubtful, dubious, dubitable, eristic, exhibiting pros and cons, factious, in dispute, in question, not axiomatic, open to discussion, open to doubt, open to question, polemical, problematical, questionable, refutable, speculative, suspect, uncertain, uncertified, undecided, under inquiry, unsure, unverifiable II index arguable, contestable, debatable, disputable, dubious, dubitative, equivocal, forensic, litigable, litigious, moot, polemic, problematic