Dictionary (a.) Capable of being annulled or made void; as, a defeasible title.Thesaurus arguable at issue confutable conjectural contestable controversial controvertible debatable defeasible deniable disprovable disputable doubtable doubtful dubious dubitable iffy in dispute in doubt in dubio in question mistakable moot open to doubt open to question problematic questionable speculative suppositional suspect suspicious |