atrocious

shockingly 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”

exceptionally 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”

provoking horror

• “an atrocious automobile accident”
• “a frightful crime of decapitation”
• “an alarming, even horrifying, picture”
• “war is beyond all words horrible” Winston Churchill
• “an ugly wound”