°To depress or discourage with fear; to impress with fear in such a manner that the mind shrinks, or loses its firmness; to overcome with sudden terror or horror; to dismay; as, the sight appalled the stoutest heart.
"The house of peers was somewhat appalled at this alarum. --."
synonyms:
dismay, terrify, daunt, frighten
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, affright, scare, depress