fearingly
fearful
crap one's pants
piss one's pants
quailingly
psyched
eerie
frit
flay
knee-trembling
overfearful
fearing
shit scared
fear
terrifiedly
afeared
'fraid
fraidy
fearmonger
frightenedly
shitting planks
dreadingly
fearfully
poopless
direful
frightful
dread
spook
gliff
flip one's lid
worrily
afraidly
panickily
terrified
scared to death
timorsome
scared spitless
worriedly
shy
dismayfully
scaredly
scared shitless
fearsomely
affright
fright
scare
frighten
overfearfulness
one's heart in one's mouth
geek out
frighten the piss out of
terror
cold chills
frightsome
tremble
consternated
panic
petrified
stuttering
trepidatious
jerran
scaaared
pavid
scared
cowed
frightened
overfrighten
horror
brick it
panickingly
flaysome
shudder
apprehend
panic attack
paranoiacally
out of one's skin
portentously
panickedly
have one's heart in one's boots
quakingly
spooky
troubledly
dementedly
funk
petrifying
run scared
shudderingly
ph33r
scaringly
daunting