Scoundrel

1. (n.) A mean, worthless fellow; a villain; a man without honor or virtue.

2. (a.) Low; base; mean; unprincipled.

Thesaurus Entries

bastard, blackguard, bounder, cad, criminal, cur, deceiver, devil, good-for-nothing, heel, knave, louse, lowlife, miscreant, precious rascal, rapscallion, rascal, rogue, rotter, scalawag, scamp, scapegrace, shyster, sneak, spalpeen, traitor, villain, wretch