disbeliever
noun
[ ˌdɪsbɪˈliːvə ]
• a person who refuses to believe something or who lacks religious faith.
• "she intends to prove the disbelievers wrong"
Similar:
unbeliever,
non-believer,
atheist,
non-theist,
irreligionist,
nihilist,
rationalist,
sceptic,
doubter,
agnostic,
doubting Thomas,
questioner,
challenger,
cynic,
scoffer,
nullifidian,
