alarming
abhorrent
abominable
appalling
arrant
astounding
atrocious
awe-inspiring
awesome
awful
baneful
base
beastly
beneath contempt
blameworthy
brutal
contemptible
deadly
deplorable
despicable
detestable
dire
direful
disagreeable
disgusting
dread
dreaded
dreadful
egregious
enormous
fearful
fell
fetid
filthy
flagrant
forbidding
formidable
foul
frightening
frightful
fulsome
ghastly
ghoulish
grievous
grim
grisly
horrendous
horrific
horrify
horror
extraordinary
horrid
miserable
monstrous
terrible
adorable