tormentor

/tɔːrˈmɛntər/
noun
  1. A person or thing that causes someone great pain, suffering, or annoyance.
    • For years, the constant noise from the construction site was a tormentor to the neighborhood.
    • In the story, the villain acts as the hero's tormentor throughout the journey.
    • The bully was the main tormentor of the younger kids on the playground.
Antonyms
What does "tormentor" mean? | whatsthatwordmean | whatsthatwordmean