a‧dul‧ter‧y /əˈdʌlt
əri/
noun [uncountable][
Date: 1400-1500;
Language: Old French;
Origin: avoutrie, from Latin adulterium, from adulter 'adulterer', from adulterare; ⇒ adulterate]
sex between someone who is married and someone who is not their wife or husband:
She had committed adultery on several occasions.—adulterous adjective [TahlilGaran] Dictionary of Contemporary English ▲