scare the pants off
freak out
put the shits up someone
scare the life out of
make someone's hair stand on end
scare the living daylights out of
jump in one's skin
frighten the life out of someone
scare someone to death
scare the shit out of
scarecrow
do someone a frighten
scare
scare the hell out of
rattle
frighten the piss out of
give someone the shits
pants-shittingly
spook
spook out
geek out
fray
put the heart across one
flay
put the wind up
fearmonger
bescare
startful
scare someone out of their wits
terrify
overfrighten
frightenable
fearmongering
run scared
risk life and limb
scare straight
terror
gnawingly
curl someone's hair
panicmongering
befright
terrorize
get the wind up
put the fear of God into
skittishness
scare off
concern
restiveness
feared
bell the cat
frightfulness
frighteningly
scaringly
scariness
have the wind up
panic
worry someone sick
bare one's breast
shudder
out of one's skin
pant-wettingly
paranoiacally
glope
not bear thinking about
take a chance
scareable
terrifying
tremble
yippee ki-yay
shirtfront
shy
make someone's skin crawl
bully
startfulness
browbeat
swagger
overscare
endanger
press the panic button
trepidly
scareful
eat
brick it
chilling
microfear
shuddery
terrifiedness
scary
halloo
make someone's flesh creep
shivery
fear