a. [ L. irrecusabilis; pref. ir-- not + recusabilis that should be rejected, fr. recusare to reject: cf. F. irrécusable. ] Not liable to exception or rejection. Sir W. Hamilton. [ 1913 Webster ]
a. [ L. irrefutabilis: cf. F. irréfutable. See Refute. ] Incapable of being refuted or disproved; indisputable. --