Synonyms and related words :
amoral, conscienceless, corrupt, corrupted, criminal, crooked, dark, devious, dishonest, dishonorable, doubtful, dubious, evasive, evil-eyed, evil-faced, evil-fashioned, evil-favored, evil-gotten, evil-looking, evil-minded, felonious, fishy, fraudulent, ill-affected, ill-conceived, ill-fashioned, ill-favored, ill-got, ill-looking, ill-shaped, immoral, indirect, insidious, not kosher, questionable, rotten, shady, shameless, shifty, sinister, slippery, suspicious, tricky, unconscienced, unconscientious, unconscionable, underhand, underhanded, unethical, unprincipled, unsavory, unscrupulous, unstraightforward, without remorse, without shame