Search Result for "irreligionist": 
Wordnet 3.0

NOUN (1)

1. someone who is indifferent or hostile to religion; 



The Collaborative International Dictionary of English v.0.48:

Irreligionist \Ir`re*li"gion*ist\, n.
   One who is irreligious.
   [1913 Webster]


WordNet (r) 3.0 (2006):

irreligionist
    n 1: someone who is indifferent or hostile to religion