Adultery

/əˈdʌltəri/

Meaning & Definition

noun
Voluntary sexual intercourse between a married person and a person who is not their spouse.
The couple's marriage was strained due to the husband's adultery.
A violation of the marital vow of fidelity.
In some cultures, adultery is seen as a serious crime and is heavily punished.
A breach of trust in a committed relationship.
She felt betrayed after discovering her partner's adultery.

Etymology

From Latin 'adulterium', from 'adulterare', meaning 'to corrupt, to defile'.

Common Phrases and Expressions

marital affair
A romantic relationship with someone who is married to another person.
cheating spouse
A husband or wife who is unfaithful in a marriage.
open marriage
A marriage in which both partners agree that each may have sexual relations with others.

Related Words

infidelity
The act of being unfaithful to a partner.
fornication
Sexual intercourse between people not married to each other.

Slang Meanings

Two-timing
He's been two-timing his girlfriend with another woman.
Playing the field
After they split up, he started playing the field.