freakout

/ˈfrikˌaʊt/
verb
  1. To become very upset, angry, or frightened, often suddenly.
    • The students freaked out after hearing about the surprise quiz.
    • Try not to freak out if the flight is delayed.
    • He freaked out when he realized he lost his wallet.
  2. To cause someone to become very upset, angry, or frightened.
    • That horror movie really freaked me out.
    • Don't freak out your little brother with those scary stories.
    • The loud noise from the construction site freaked out the baby.
Synonyms
noun
  1. A sudden, strong emotional reaction, especially one of fear, anger, or panic.
    • She had a total freakout when she saw the spider on her pillow.
    • Don't have a freakout over a small mistake on the test.
    • The power outage caused a freakout among the office workers.
Antonyms
What does "freakout" mean? | whatsthatwordmean | whatsthatwordmean