What is another word for "infidel"?

Roget's Thesaurus (1911) lists these synonyms for "infidel": agnostic, agnosticism, alien, anger, animus, antichristian, antichristianity, atheism, atheist, atheistic, avenge, avengeance, avengement, avenger, bear, belief, blood, bone, bout, breast, breathe, carnal, crow, day, death, dechristianize, deism, deist, deistical, devoutless, disbelief, disbelieve, doubt, earthly, est, faith, faithless, feeling, feud, for.