'fraid
jerran
frightsomely
shitting planks
run scared
fearfully
hairy
have one's heart in one's boots
dangerously
haphephobia
macabre
direful
shit scared
terrifiedness
distress
terrifiedly
frightenable
dementor
eariness
fearingly
gliff
scared shitless
scared spitless
apprehend
frightful
overfrighten
scarecrow
afraidly
scare the hell out of
achluophobia
fearmonger
do someone a frighten
frightenedly
fright
horror
scare someone to death
omphalophobia
fearsomely
affright
gnarly
scare
overfearfulness
frighten
alarming
frighten the life out of someone