Adulterer

n. one who commits adultery, one who has sexual relations with someone other than one's spouse

Adultery is voluntary sexual intercourse between a married person and one who is not his or her spouse. Some legal jurisdictions have defined it as "crime against marriage", opposed to infidelity.
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Noun
1. someone who commits adultery or fornication
(synonym) fornicator
(hypernym) libertine, debauchee, rounder
(hyponym) adulteress, fornicatress, hussy, jade, loose woman, slut, strumpet, trollop

(n.)
A man who violates his religious covenant.
  

(n.)
A man who commits adultery; a married man who has sexual intercourse with a woman not his wife.
  

n.
استري گامي , بدکار , زنا کار , حرام کار , فاجر , زاني , فاسق