Indubitable
Pronunciation : In*du"bi*ta*ble
Part of Speech : a.
Etymology : [L. indubitabilis: cf. F. indubitable. See In- not, and Dubitable.]
Definition : Defn: Not dubitable or doubtful; too evident to admit of doubt; unquestionable; evident; apparently certain; as, an indubitable conclusion. -- n.
Defn: That which is indubitable.
Syn. -- Unquestionable; evident; incontrovertible; incontestable; undeniable; irrefragable.
Source : Webster's Unabridged Dictionary, 1913