Irrefragable
Pronunciation : Ir*ref"ra*ga*ble
Part of Speech : a.
Etymology : [F. irr?fragable, L. irrefragabilis. See Refragable.]
Definition : Defn: Not refragable; not to be gainsaid or denied; not to be refuted or overthrown; unanswerable; incontestable; undeniable; as, an irrefragable argument; irrefragable evidence. -- Ir*ref"ra*ga*ble*ness, n. -- Ir*ref"ra*ga*bly, adv.
Syn. -- Incontrovertible; unanswerable; indisputable; unquestionable; incontestable; indubitable; undeniable; irrefutable.
Source : Webster's Unabridged Dictionary, 1913