that cannot be refuted; unanswerable
• (a.) 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 (ĭr*rĕf'rȧ*gȧ*b'l) adjective [ French irréfragable , Latin irrefragabilis . See Refragable .] Not refragable; not to be gainsaid or denied; not to be refuted or overthrown; unanswerable; incontestable; undeniable; as, an irrefragab...
not to be disputed or contested.