[1] : The Collaborative International Dictionary of English v.0.48

unbeliever \un`believ"er\, n.
   1. one who does not believe; an incredulous person; a
      doubter; a skeptic.
      1913 webster

   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.
      1913 webster

   syn: see infidel.
        1913 webster
see also:
infidel 

[2] : WordNet (r) 2.0

unbeliever
     n : someone who refuses to believe as in a divinity syn: disbeliever,
          nonbeliever
see also:
disbeliever nonbeliever 

[3] : Moby Thesaurus II by Grady Ward, 1.0

38 moby thesaurus words for "unbeliever":
   pyrrhonist, sabbath-breaker, apostate, atheist, backslider,
   blasphemer, deserter, disbeliever, doubter, doubting thomas,
   gentile, giaour, goy, heathen, infidel, kaffir, minimifidian,
   non-christian, non-jew, non-mohammedan, non-mormon, non-moslem,
   non-muhammadan, non-muslim, nonbeliever, nullifidian, pagan,
   recidivist, recreant, renegade, sacrilegist, secularist, shegets,
   shiksa, zendician, zendik, zendikite, zetetic

Unbeliever >> U Words
Unbeliever, definition of term: Unbeliever
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