appalling (n.)
appalling (adj.)
- astonishing
- astounding
- atrocious
- awe-inspiring
- awesome
- awful
- baneful
- beastly
- confounding
- conspicuous
- daunting
- dire
- direful
- dismaying
- dread
- dreaded
- dreadful
- dumbfounding
- egregious
- exceptional
- extraordinary
- fabulous
- fantastic
- fell
- formidable
- frightful
- ghastly
- ghoulish
- grim
- grisly
- gruesome
- hideous
- horrendous
- horrible
- horrid
- horrific
- horrifying
- incredible
- macabre
- marked
- marvelous
- morbid
- notable
- noteworthy
- noticeable
- outstanding
- redoubtable
- remarkable
- rotten
- shocking
- signal
- striking
- superior
- terrible
- terrific
- tragic
- tremendous
- uncommon
- unspeakable
- wonderful
