WordReference Random House Unabridged Dictionary of American English © 2026
non•be•liev•er
(non′bi lē′vər),USA pronunciation n.
non′be•liev′ing, adj.
- a person who lacks belief or faith, as in God, a religion, an idea, or an undertaking.
- non- + believer
- doubter, skeptic, questioner, cynic.
'nonbeliever' also found in these entries (note: many are not synonyms or translations):