Deniable

(a.) Capable of being, or liable to be, denied.

Thesaurus Entries

arguable, at issue, confutable, conjectural, contestable, controversial, controvertible, debatable, 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