Voluntary sexual intercourse between a married person and a person who is not his or her spouse: she was committing adultery with a much younger man
More example sentences
- You could hook up with someone else, but that would be adultery and adultery is wrong.
- The marriage has to be consummated before an extramarital affair becomes adultery.
- However, it has been held that the petitioner need not find it intolerable to live with the respondent because of his adultery.
late 15th century: from the obsolete noun adulter, from Latin adulter 'adulterer', replacing an earlier form avoutrie, from Old French avouterie, likewise based on Latin adulter.