bloodcurdling

/ˈblʌdˌkɜrdlɪŋ/
adjective
  1. Extremely frightening or horrifying, especially in a way that causes a feeling of terror.
    • The movie's bloodcurdling scream made everyone in the theater jump.
    • He told a bloodcurdling ghost story around the campfire.
    • The sound of the monster's roar was absolutely bloodcurdling.
Antonyms
What does "bloodcurdling" mean? | whatsthatwordmean | whatsthatwordmean