modified
irreligious, godless, sinful, profane, blasphemous, sacrilegious, unholy, sanctimonious, hypocritical, canting, desecrating, defiling, disrespectful, irreverent, undutiful, deceitful, disobedient, unethical, immoral, apostate, pietistical, unctuous, hardened, perverted, recusant, lacking reverence for God, unsanctified, unhallowed, desecrative, iniquitous, unrighteous, atheistic, agnostic, unregenerate, reprobate, ungodly, satanic, diabolic; see also atheistic, wicked 1.
Antonyms pious*, virtuous, devout.