(Greek legend) a king in ancient Greece who offended Zeus and whose punishment was to roll a huge boulder to the top of a steep hill; each time the boulder neared the top it rolled back down and Sisyphus was forced to start again
Son of Aeolus and Enarete, and king of Ephyra, as tragic figure doomed eternally to roll a boulder up a hill in Tartarus, a part of Hades.