Adulterous.

Relating to, characterized by, or involving adultery; (of a person) that commits or has committed adultery.

Characterized by or committing adultery; given to adultery; (more generally) debauched, lecherous; = adulterous, adj. 1. Also figurative. Now rare.

Of, given to, or resulting from adultery; adulterous in behaviour or origin. Cf. adulterated, adj. 1. Also figurative.

Tainted with or guilty of adultery; = adulterate, adj. 2. Now archaic and rare.

Adulterous.

Loosely or more vaguely: Adulterous. Obsolete.

Of a person or a person's mind: inclined towards sexual promiscuity or adultery; adulterous; promiscuous.