panic-struck

Adjective

• thrown into a state of intense fear or desperation
  • became panicky as the snow deepened
    
  • felt panicked before each exam
    
  • trying to keep back the panic-stricken crowd
    
  • the terrified horse bolted
    

Related words

• Synonyms: 
  panicky , panicked , panic-stricken , terrified , frightened