1. noun /ˈeɪθiɪst/
All children are born Atheists; they have no idea of God.
That very day certain police officials began to persuade me to offer my prayers to God regularly both the times. Now I was an atheist. I wanted to settle for myself whether it was in the days of peace and enjoyment alone that I could boast of being an atheist or whether during such hard times as well I could stick to those principles of mine. After great consideration I decided that I could not lead myself to believe in and pray to God. No, I never did. That was the real test and I came, out successful.
2. adjective /ˈeɪθiɪst/
Of or relating to atheists or atheism; atheistic.
He would have been seven times more Epicure and atheist than he was.
Wikipedia foundation.