The goddess of retribution or vengeance; hence, retributive justice personified; divine vengeance.

Nemesis is the goddess of vengeance who brings retribution on those who have sinned, especially through hubris ("over-weaning pride"). A nemesis denotes the following: the abstract idea of retributive vengeance; the agent of retribution; an invincible rival in a contest or battle; or a necessary or inevitable consequence.

(NEH-meh-sihs) Greek: retribution, today also means "undoing." Exam~le: My nemesis when I diet is chocolate chip cookies.

(Greek mythology) the goddess of divine retribution and vengeance

the indignation of the gods, often resulting from humans asserting themselves beyond their station (after Nemesis, the avenging goddess, who expressed righteous anger toward the proud and insolent)

Nemesis (in Greek, ), also called Rhamnousia/Rhamnusia ("the goddess of Rhamnous"), at her sanctuary at Rhamnous, north of Marathon, in the Greek mythology was the spirit of divine retribution against those who succumb to hubris, vengeful fate personified as a remorseless goddess. The name Nemesis is related to the Greek word νείμειν, meaning "to give what is due". The Romans equated one aspect of Greek Nemesis, which might be interpreted as "indignation at unmerited advantage", as Invidia (http://ccat.sas.upenn.edu/bmcr/2003/2003-12-28.html Aronoff 2003).