black sheep

Noun	1.	black sheep - a reckless and unprincipled reprobate Synonyms: scapegrace
	2.	black sheep - sheep with a black coat

backslider, bad egg, bad lot, blemish, degenerate, fallen angel, foreign body, foreign intruder, impurity, intruder, lecher, lost sheep, lost soul, miscreant, misfit, monkey wrench, mote, oddball, pervert, pimp, profligate, recidivist, recreant, reprobate, scapegrace, sliver, sorry lot, speck, splinter, stone, trollop, weed, whore