'Horror-struck' definitions:

Definition of 'horror-struck'

(from WordNet)
adjective
Stricken with horror [syn: horrified, horror- stricken, horror-struck]

Definition of 'Horror-struck'

From: GCIDE
  • Horror-struck \Hor"ror-struck`\, a. Horror-stricken; horrified. --M. Arnold. [1913 Webster]