Open English Wordnet
Adjectives
(s)atrocious, flagitious, grievous, monstrousshockingly brutal or cruel“murder is an atrocious crime”, “a grievous offense against morality”, “a grievous crime”, “no excess was too monstrous for them to commit”
(s)atrocious, abominable, awful, dreadful, painful, terrible, unspeakableexceptionally bad or displeasing“atrocious taste”, “abominable workmanship”, “an awful voice”, “dreadful manners”, “a painful performance”, “terrible handwriting”, “an unspeakable odor came sweeping into the room”