freak out
make someone's hair stand on end
put the shits up someone
scare the hell out of
do someone a frighten
scare the life out of
scarecrow
scare the pants off
geek out
put the heart across one
make someone's flesh creep
scare the living daylights out of
curl someone's hair
scare the shit out of
give someone the shits
frighten the life out of someone
scare someone to death
flay
put the wind up
spook
spook out
have the wind up
fray
get the wind up
rattle
make someone's skin crawl
not bear thinking about
creep out
concern
rub up the wrong way
disquiet
get someone's back up
get someone's goat
raise someone's hackles
get someone's Irish up
set up someone's birse
get someone's dander up
mither
put the fear of God into
scare
dread
feared
worry someone sick
comb someone's hair the wrong way
tremble
cringeful
terror
brick it
pants-shittingly
send shivers down someone's spine
jump in one's skin
get on someone's bad side
scaringly
frightenedness
chap someone's hide
wrack
panic
eat
harrow
frighten the piss out of
tread on someone's toes
disembarrassment
funk
get under someone's skin
terrorize
apprehend
trepidly
out of one's skin
have one's heart in one's boots
get up someone's nose
scare straight
befright
horrendous
direful
terrible
turn off
horrific
frightening
dreadful
boo
dire
frightfulness
fearsome
dreaded
fearsomely
fearful
awful
worryingly
crap oneself
feared
cringeful
panic
dread
horrendous
direful
terrible
horrific
frightening
dreadful
dire
fearsome
dreaded
fearful
awful
pants-shittingly
scaringly
trepidly
fearsomely
worryingly
spook
terror
frightenedness
disembarrassment
frightfulness
flay
freak out
make someone's hair stand on end
put the shits up someone
scare the hell out of
do someone a frighten
scare the life out of
scarecrow
scare the pants off
geek out
put the heart across one
make someone's flesh creep
scare the living daylights out of
curl someone's hair
scare the shit out of
give someone the shits
frighten the life out of someone
scare someone to death
flay
put the wind up
spook
spook out
have the wind up
fray
get the wind up
rattle
make someone's skin crawl
not bear thinking about
creep out
concern
rub up the wrong way
disquiet
get someone's back up
get someone's goat
raise someone's hackles
get someone's Irish up
set up someone's birse
get someone's dander up
mither
put the fear of God into
scare
dread
worry someone sick
comb someone's hair the wrong way
tremble
brick it
send shivers down someone's spine
jump in one's skin
get on someone's bad side
chap someone's hide
wrack
panic
eat
harrow
frighten the piss out of
tread on someone's toes
funk
get under someone's skin
terrorize
apprehend
have one's heart in one's boots
get up someone's nose
scare straight
befright
turn off
crap oneself
English words for 'To scare or unnerve someone.'
As you may have noticed, above you will find words for "To scare or unnerve someone.". Hover the mouse over the word you'd like to know more about to view its definition. Click 
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