petrified
adjective /ˈpetrɪfaɪd/
  /ˈpetrɪfaɪd/
 - extremely frightened synonym terrified
- a petrified expression
 - petrified (of something) I'm petrified of snakes.
 - They were petrified with fear (= so frightened that they were unable to move or think).
 - petrified (that…) She was petrified that the police would burst in at any moment.
 
Extra ExamplesTopics Feelingsc2- She was petrified at the prospect of meeting his parents.
 - The child stood petrified with fear.
 
 - [only before noun] petrified trees, insects, etc. have died and been changed into stone over a very long period of time
- a petrified forest