frightened vs panic-struck

frightened and panic-struck both are adjectives.

Word	Noun	Adjective	Verb	Adverb
frightened	No	Yes	No	No
panic-struck	No	Yes	No	No

As adjectives, frightened and panic-struck are synonyms defined as:

frightened and panic-struck: thrown into a state of intense fear or desperation

Other synonyms of frightened include panic-stricken, panicked, panicky, terrified.

frightened (adjective)	panic-struck (adjective)
made afraid	thrown into a state of intense fear or desperation
thrown into a state of intense fear or desperation