Un`be*liev"er (?), n.
1.
One who does not believe; an incredulous person; a doubter; a skeptic.
2.
A disbeliever; especially, one who does not believe that the Bible is a divine revelation, and holds that Christ was neither a divine nor a supernatural person; an infidel; a freethinker.
Syn. -- See Infidel.
© Webster 1913.