| Contestable (a.) Capable of being contested; debatable. Thesaurus Entries at issue, confutable, conjectural, contestable, controversial, controvertible, debatable, deniable, disputable, doubtable, doubtful, dubious, dubitable, iffy, in dispute, in doubt, in dubio, in question, mistakable, moot, open to doubt, open to question, problematic, questionable, refutable, speculative, suppositional, suspect, suspicious, uncertain |