aggro
nettlesome
hot and bothered
close to the bone
upsetting
aggravative
importune
rile up
irritant
aggravatingly
irritating
discomfort
irritatory
aggravatedly
inconvenience
offend
pestilential
get under one's skin
set someone's teeth on edge
get
killer
ill
mal-
confronting
stressful
frightful
fearful
get under one's goat
repulse
rebarbative
irritance
pressure
bugger
exacerbatingly
irritational
get to
beast
irritatingly
decatenate
worsening
trouble
bite
sensy
tormenting
incommodiousness
tick off
rustle someone's jimmies
creepy-crawly
evil day
stick in someone's craw