Definitions for "Adversary"
One who is turned against another or others with a design to oppose or resist them; a member of an opposing or hostile party; an opponent; an antagonist; an enemy; a foe.
Opposed; opposite; adverse; antagonistic.
Having an opposing party; not unopposed; as, an adversary suit.
The Adversary is a fictional character, a demonic supervillain in the Marvel Comics universe, and one of the most powerful villains to ever appear. He first appeared in Uncanny X-Men #188, by Chris Claremont and John Romita, Jr.
Ruler of the Infernals, a spirit believed to be evil incarnate. The Adversary is an entity of unimaginable horror and power, equal to any of the Six.
an external entity that attempts to subvert servers
Adversary is a Melodic Death Metal/Metalcore band from Manassas, Virginia, USA
In computer science, an online algorithm measures its competitiveness against different adversary models. For deterministic algorithms, the adversary is the same, the adaptive offline adversary. For randomized online algorithms competitiveness can depend upon the adversary model used.
Keywords:  satan, names, one
One of Satan's names.
Keywords:  absolutely, partner
a partner, absolutely
Keywords:  someone, opposition, offers
someone who offers opposition