[ad-ver-ser-ee] 
noun, plural -sar⋅ies, adjective | 1. | a person, group, or force that opposes or attacks; opponent; enemy; foe. |
| 2. | a person, group, etc., that is an opponent in a contest; contestant. |
| 3. | the Adversary, the devil; Satan. |
[ad-ver-sair-ee-uh
l] . | 4. | of or pertaining to an adversary. |
| 5. | involving adversaries, as plaintiff and defendant in a legal proceeding: an adversary trial. |