Synonyms: beastly, bestial, brutal, brute, brutish
Definition: resembling a beast; showing lack of human sensibility
Usage: beastly desires; a bestial nature; brute force; a dull and brutish man; bestial treatment of prisoners
Similar words: inhumane
Definition: lacking and reflecting lack of pity or compassion
Usage: humans are innately inhumane; this explains much of the misery and suffering in the world; biological weapons are considered too inhumane to be used