See More Titanomachy Pictures >. The Titanomachy, in Greek mythology, was the great war that occurred between the Titans, the old generation of Greek gods, and the Olympian gods, led by Zeus.
noun, plural adversaries. 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.
Another possibility is adversarial for someone who contends with, opposes, or resists.. For me, the word has the connotations of a contest or battle, perhaps even a sense of one-upmanship.