Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

&c adj.; laxity, quietism. skepticism, doubt; unbelief, disbelief; incredulity, incredulousness &c adj.†; want of faith, want of belief; pyrrhonism; bout &c 485; agnosticism. atheism; deism; hylotheism†; materialism; positivism; nihilism. infidelity, freethinking, antichristianity†, rationalism; neology. [person who is not religious] atheist, skeptic, unbeliever, deist, infidel, pyrrhonist; giaour†, heathen, alien, gentile, Nazarene; espri fort [Fr.], freethinker, latitudinarian, rationalist; materialist, positivist, nihilist, agnostic, somatist†, theophobist†. V. be irreligious &c adj.; disbelieve, lack faith; doubt, question &c 485. dechristianize†. Adj. irreligious; indevout†; undevout†; devoutless†, godless, graceless; ungodly, unholy, unsanctified†, unhallowed; atheistic, without God. skeptical, freethinking; unbelieving, unconverted; incredulous, faithless, lacking faith; deistical; unchristian, antichristian†. worldly, mundane, earthly, carnal; worldly minded &c Adv. irreligiously &c adj..