THESAURUS
not kosher
Bohemian, amoral, beat, breakaway, conscienceless, corrupt, corrupted, criminal, crooked, dark, devious, dishonest, dishonorable, doubtful, dubious, evasive, far out, felonious, fishy, fraudulent, free and easy, fringy, heretical, heterodox, hippie, ill-got, ill-gotten, immoral, indirect, informal, insidious, kinky, maverick, not cricket, not done, offbeat, original, questionable, rotten, shady, shameless, shifty, sinister, slippery, suspicious, tricky, unconscienced, unconscientious, unconscionable, unconventional, underhand, underhanded, unethical, unfashionable, unorthodox, unprincipled, unsavory, unscrupulous, unstraightforward, way out, without remorse, without shame