If you describe someone as horror-struck or horror-stricken, you mean that they feel very great horror at something that has happened. adj
`What is the matter with Signora Anna?' he whispered, horror-struck at her vacant face.
Translation English Cobuild Collins Dictionary
horror-struck , horror-stricken
aghast, appalled, awe-struck, frightened to death, horrified, petrified, scared out of one's wits, shocked
English Collins Dictionary - English synonyms & Thesaurus
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