Definition of unbeliever in English:
Someone who has no religious beliefs, or who does not follow a particular religion.
- I am English, born in Britain, but I am referred to as a heretic, unbeliever, infidel, etc., because I am a Pagan.
- In short, they held a place between heretic and unbeliever.
- So you priests better be careful with all that talk about the sinners and the unbelievers and heretics burning in hell.