Irrefutable \Ir`re*fut"a*ble\ (?; 277), a. [L. irrefutabilis: cf. F. irr['e]futable. See {Refute}.] Incapable of being refuted or disproved; indisputable. -- {Ir`re*fut"a*ble*ness}, n. -- {Ir`re*fut"a*bly}, adv. [1913 Webster]