Titan

Titan or titanic.
The twelve Titans, the second generation of gods, born of Ge and Uranus, were of gigantic stature, most of them conceived of as natural forces, and although defeated and punished by Zeus, virtually invincible. Their massive strength is preserved in the adjective titanic, which was also the name given to an ocean vessel thought to be unsinkable. To call someone a titan is to emphasize one's enormous mastery and ability in any field or endeavor.