Infidelity (synonyms include cheating, straying, adultery, being unfaithful, or having an affair) is a violation of a couples emotional and/or sexual exclusivity that commonly results in feelings of anger, sexual jealousy, and rivalry. What constitutes infidelity depends on expectations within the relationship.

Whats the proper term for cheating?

What is another word for cheating?unfaithfulnessinfidelityaffaircuckoldryamourunchastityfornicationintriguehanky-pankyextramarital relations24 more rows