Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb appal

2 senses of appal

Sense 1
shock, offend, scandalize, scandalise, appal, appall, outrage -- (strike with disgust or revulsion; "The scandalous behavior of this married woman shocked her friends")
       => disgust, revolt, nauseate, sicken, churn up -- (cause aversion in; offend the moral sense of; "The pornographic pictures sickened us")

Sense 2
dismay, alarm, appal, appall, horrify -- (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")
       => frighten, fright, scare, affright -- (cause fear in; "The stranger who hangs around the building frightens me"; "Ghosts could never affright her")