The word Atheist is a noun.
An antonym for the word "rabbi" could be "layperson" or "congregation member," signifying someone who is not a religious leader or clergy member.
Your question is an example, albeit flawed, of a sentence containing the word "atheist."
the atheist later became a scientist :)
That is the correct spelling of "gnostic" (capitalized Gnostic referring to the belief).The similar word is the adjective or noun agnostic(neither a theist nor atheist).
Sceptic, sceptical, incredulous and suspicious
Atheist.
atheist
The prefix in the word "atheist" is "a-", which means "without" or "not."
I am an atheist.An atheist is someone who doesn't believe in religion.It is everyone's right to choose their own religion and not be abused for it, including those who are atheist.
"Because John does not believe in gods, he considers himself an atheist."
Noun.