have the wind up
get the wind up
put the wind up
fray
tremble
have one's heart in one's boots
brick it
flay
spook
spook out
apprehend
quake in one's boots
dread
gloppen
run scared
crap oneself
shake
terrifyingness
fear
freak out
fearfully
funk
affright
curl someone's hair
glope
harrow
frighten the piss out of
frighten
fearsomely
make someone's hair stand on end
scary
crap one's pants
panic
piss one's pants
geek out
perturb
frightenedness
not bear thinking about
afraid
flaysome
frightened
scare the hell out of
pavid
trepidly
do someone a frighten
make someone's skin crawl
fearlike
frighteningly
terrifying
skeeve