terrifiedly
frightenedly
panickedly
frightfully
frit
psyched
panickily
scaredly
terrified
knee-trembling
gliff
eerie
shit scared
afraidly
terrifyingly
terrorstricken
terrorstruck
scared shitless
scared spitless
scarily
frightsomely
frighteningly
direful
poopless
frightsome
terrification
spook
scaaared
scareful
panicky
numb
scared to death
out of one's skin
paniculately
spooky
fear
flaysome
jauntingly
aghast
horrifiedly
maddeningly
brick it
scared
one's heart in one's mouth
distraughtly
piss one's pants
crap one's pants
quakingly
shitting planks
disgustedly
dread
fearsomely
appalled
infuriatedly
hysterically
take fright
creepy
shudder
thrill
tingle
chill
funk
dreadingly
geek out
scaringly
chemophobic
quiver
frisson
skrik
shiver
panic-stricken
embarrassedly
petrified
dismayfully
exasperatedly
alarmingly
infuriatingly
unnervedly
have one's heart in one's boots
shy
horrored
portentously
fearful
fearfully
overfearfulness
dementedly
flay
fearing
petrification
creeps
freakishly
funky
scaaary
alarmedly
frightened
affright
fearingly
freaky