The belief that there is no God, or denial that God or gods exist
Skepticism is a general attitude of distrusting or doubting.
(Obs.) Apprehension or fear
Find another word for irreligion. In this page you can discover 5 synonyms, antonyms, idiomatic expressions, and related words for irreligion, like: atheism, disbelief, skepticism, doubt and irreligiousness.