a. [ L. irrefutabilis: cf. F. irréfutable. See Refute. ] Incapable of being refuted or disproved; indisputable. -- Ir`re*fut"a*ble*ness, n. -- Ir`re*fut"a*bly, adv. [ 1913 Webster ]
(adj) impossible to deny or disprove, Syn. irrefutable, positive, Example:incontrovertible proof of the defendant's innocence; proof positive; an irrefutable argument