1) Atheist 2) Atheistical 3) Godless 4) Irreligious 5) Unbelieving 1) Atheistic people 2) Atheistical 3) Denying divinity 4) Eschewing a higher calling 5) Irreligious 6) Lacking godly belief 7) More than skeptical 8) Not inclined to believe 9) Rejecting any belief in gods 10) Rejecting higher authority 11) Unbelieving 12) Worshiping none 
• (a.) Alt. of Atheistical
[adj] - rejecting any belief in gods
atheistic, atheistical 1. Someone who denies the existence of god. 2. A person who is related to or characterized by or given to atheism. 'As an atheist, I proclaim that if there were a God, would He allow people like this poor man to be in such miserable conditions? This is just one example of how so many people in the world are suffering and whi...
atheistical adjective rejecting any belief in gods
pertaining to or characteristic of atheists or atheism; containing, suggesting, or disseminating atheism: atheistic literature; atheistic people.