cruel and very unkind

cruel, remorseless

(of a person) taking pleasure in causing pain to, watching the suffering of, others

vicious, pitiless; causing pain

(of, like) a murderer

ruthless

causing, likely to cause, death

causing end of life

fierce, cruel, violent

violent, barbaric

violent; cruel; angry

violent, menacing

(of animals) attacking and killing others

eating, destroying for sustenance or without conscience

using, showing, accompanied by, great force; using, caused by, violent behaviour

destructive