Synonyms for Atrocious:

adj.

all (adjective)
grievous, flagitious, monstrous.
evil (adjective)
repugnant, calamitous, sinister, damnable, loathsome, offensive, wicked, repellent, disgraceful, reprehensible, detrimental, foul, evil, abominable, repulsive, revolting, terrible, baneful, hideous, bad, sinful, nefarious, monstrous, destructive, heinous.
offensive (adjective)
outrageous, horrifying, disgusting, appalling, horrid, horrible, terrible, sickening, repulsive, loathsome, dreadful, foul.
outrageous; widely condemned (adjective)
scandalous, nefarious, awful, monstrous, bad, heinous, shocking, wicked.
unspeakable (adjective)
unspeakable.
wicked (adjective)
wicked.

n.

uncharitable, hard, unkind, hateful, pitiless. scandalous, outrageous, right, enormous, embarrassing, second-rate, low-grade, pitiful, shocking, poor. sickening, horrid, unwholesome, pain, disgusting, like, nauseating. abominable (noun)
outrageous, appalling, study atoutrageous.
atrocious (noun)
heinous, horrible, wicked, evil, terrible, ugly, frightful, unspeakable, abominable, horrifying, flagitious, monstrous, painful, awful, alarming, dreadful, grievous, bad.

Other synonyms:

shocking, disgusting, sickening, nauseating, scandalous. enormous, horrid. unwholesome. Other relevant words:
scandalous, appalling, flagitious, dreadful, hard, awful, disgusting, horrid, grievous, frightful, abominable, hateful, unkind, nauseating, second-rate, shocking, outrageous, ugly, enormous, unwholesome, pitiless, unspeakable, sickening, alarming, horrible, low-grade, horrifying, painful, poor, pitiful.

Usage examples for atrocious

  1. With that atrocious slang! – O. Henry Memorial Award Prize Stories of 1921 by Various
  2. It was a most atrocious production, in a paper cover, filled with mistakes, and adorned with the kind of spelling, which is, alas! – One Day's Courtship The Heralds Of Fame by Robert Barr
  3. If she had loved her husband she would have been safe enough from him; but to be bound to a companionship that she gave unwillingly- this had seemed to him atrocious even before he loved her. – The Dark Flower by John Galsworthy