Webster’s Revised Unabridged Dictionary · 1913
Atheist
A′the·ist, n. [Gr. ἄθεος without god; ἀ priv. + ? god: cf. F. athéiste.] 1. One who disbelieves or denies the existence of a God, or supreme intelligent Being.
2. A godless person. [Obs.]
Syn. — Infidel; unbeliever.
See Infidel.