Nemesis

Nemesis [ NEM-uh’-sis ]
	[ noun ]
	MEANING :
	1. a source of harm or ruin 2. an opponent who is fearsome and cannot be beaten or overcome 3. one that inflicts retribution or vengeance
	USAGE EXAMPLE 1 :
	The West Indian pace attack of the 1980's proved to be a nemesis for many a batsman.
	USAGE EXAMPLE 2 :
	A gruelling second day awaits - including the dreaded javelin, Sotherton's nemesis on a number of occasions and no great favourite of the diminutive Ennis.