CRUEL

adj. 1 merciless, pitiless, hard-hearted, harsh, stony-hearted, heartless, unsparing, callous, beastly, cold-blooded, ruthless, unkind, hard It was cruel of you to refuse to help 2 ferocious, inhuman, barbaric, barbarous, brutal, savage, bloodthirsty, vicious, sadistic, fiendish, diabolical, hellish, atrocious, Neronian or Neronic or Neroic His captors subjected him to the cruellest tortures