27 Moby Thesaurus words for "kill crazy": atrocious, barbaric, barbarous, bestial, bloody, brutal, brutish, feral, ferine, ferocious, fierce, inhuman, malign, malignant, merciless, murderous, noncivilized, pitiless, ruthless, sanguinary, savage, tameless, uncivilized, ungentle, untamed, vicious, wild