Adulterer

[ə'dʌlt(ə)rə] or [ə'dʌltərɚ]

(noun.) someone who commits adultery or fornication.

Typed by Humphrey--From WordNet

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

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

Editor: Patrick