alarming
abominable
appalling
astounding
awe-inspiring
awesome
awful
baleful
blue
cadaverous
corpselike
daunting
deadly
deathlike
deathly
deathly pale
dire
direful
dread
dreaded
dreadful
eerie
fearful
fearsome
fell
forbidding
formidable
foul
frightening
frightful
ghastly
ghostlike
ghostly
ghoulish
grim
grisly
grotesque
haggard
hideous
horrendous
horrible
horrid
horrific
horrifying
livid
loathsome
lurid
macabre
morbid
mortuary
offensive
grewsome
bizarre
frighten
hellish
humiliate
ludicrous
scary
sinister
tragic
twosome