noun

Disbelief or lack of belief in the existence of God or gods.

Doubts and refutations were presented from the perspective of humanistic atheism and agnosticism.

non-belief,non-theism,disbelief,unbelief,scepticism,doubt,agnosticism,irreligion,godlessness,ungodliness,profaneness,impiety,heresy,apostasy,paganism,heathenism,freethinking,nihilism