Merriam-Webster Online Thesaurus
sacrilegious (adjective)not showing proper reverence for the holy or sacred
SYNONIMS:
blasphemous, impious, profane, sacrilegiousRELATED WORDS:
agnostic, atheistic ( atheistical); godless, heretical ( heretic), irreligious, miscreant, nonreligious, religionless, secular; ungodly, unholy; unconsecrated, unhallowed; heathen, pagan, paganishNEAR ANTONYMS:
devout, God-fearing, godly, holy, prayerful, religious, sainted, saintly, worshipful, worshipping ( worshiping); consecrated, hallowed, sacred, sacrosanct, sanctified