pitiless Synonyms

unkind remorseless ruthless unpitying tough tyrannical unamiable uncharitable uncompromising tigerish strict stony stern soulless severe savage revengeful unfeeling unsympathetic unmerciful unregretful uncompassionate unstoppable stonyhearted stony-hearted uncaring inhumane unforgiving sadistic barbaric unappeasable vicious vengeful unsparing unrelenting relentless raptorious fierce ferocious ferine feral draconian cutthroat cruel cold-hearted cold-blooded cold closefisted callous brutish