- beastly, hellish, god-awful - very unpleasant; "hellish weather"; "stop that god-awful racket"
Antonym: pleasant (indirect, via unpleasant)
- beastly, bestial, brute, brutish - resembling a beast; showing lack of human sensibility; "beastly desires"; "a bestial nature"; "brute force"; "a dull and brutish man"; "bestial treatment of prisoners"
Antonym: humane (indirect, via inhumane)