<p><strong>Noun</strong></p><ul><li>a person, group, or force that opposes or attacks; opponent; enemy; foe</li><li>a person, group, etc., that is an opponent in a contest; contestant</li><li>the Adversary, the devil; Satan</li><li>a military enemy; hostile army</li><li>a person belonging to a hostile army or nation</li><li>an opponent in a game or contest; adversary: a political foe</li><li>a person who is opposed in feeling, principle, etc., to something: a foe to progress in civil rights</li><li>a thing that is harmful to or destructive of something: Sloth is the foe of health</li></ul><p><strong>Adjective</strong></p><ul><li>of or relating to an adversary</li><li>involving adversaries, as plaintiff and defendant in a legal proceeding: an adversary trial</li></ul>