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Verb: appall  u'pol
Usage: US (elsewhere: appal)
  1. Strike with disgust or revulsion
    "The scandalous behavior of this married woman appalled her friends";
    - shock, offend, scandalize, scandalise [Brit], appal [Brit, Cdn], outrage
  2. Fill with apprehension or alarm; cause to be unpleasantly surprised
    "I was appalled at the thought of being late for my interview";
    - dismay, alarm, appal [Brit, Cdn], horrify

Derived forms: appalled, appalls

Type of: affright, disgust, fright [archaic], frighten, nauseate, revolt, scare, sicken

Encyclopedia: Appall