irreligion

noun

1. (uncountable, usually)The state of being irreligious; irreligious sentiment or thought.

   “Near-synonyms: atheism, agnosticism”

   “Lucretius' irreligion is too strong, / For early stomachs, to prove wholesome food […]”

   “These often slangly letters censure modern irreligion and urge devotion to religion.”

   “When we put this idea together with that of the other prescription, we see that what the two together demand is that, with respect to their religions and irreligions, all men shall stand before the government as equals.”