appall

verbs

strike with disgust or revulsion
"The scandalous behavior of this married woman shocked her friends"
appal, appall, offend, outrage, scandalise, scandalize, shock
fill with apprehension or alarm; cause to be unpleasantly surprised
"I was horrified at the thought of being late for my interview"; "The news of the executions horrified us"
alarm, appal, appall, dismay, horrify