Adultery

Adultery is consensual sexual intercourse between a married man or woman with a man or woman other than his or her lawful spouse.

Common synonyms for adultery are unfaithfulness, having an affair and cheating. It was also known in earlier times by the legalistic term "criminal conversation" (another term, "alienation of affection", is used when one partner deserts the other for a third person). The term is not related to adult (Latin a-dolescere, to grow up, mature), but to Latin ad-ulterare (to corrupt).

The sexual partner of a married person committing adultery is often referred to in legal documents, especially in divorce proceedings, as a co-respondent.

A marriage in which both spouses agree that it is acceptable for the partner to have sexual relationships with other people is termed open marriage. The resulting sexual relationships the partner has with other people, though still legally considered adulterous, are not treated as such by the spouse

This page uses content from SM-201; the original article can be viewed here.