irritator

/ˈɪrɪˌteɪtər/
noun
  1. A person or thing that causes annoyance, anger, or discomfort.
    • The constant buzzing of the fly was a real irritator during the picnic.
    • He was known as an irritator in the office, always making sarcastic comments.
    • The loud construction noise outside was a major irritator for everyone trying to work.
Antonyms
What does "irritator" mean? | whatsthatwordmean | whatsthatwordmean