troubler

/ˈtrʌblər/
noun
  1. A person or thing that causes worry, problems, or disturbance.
    • She saw the new policy as a troubler of the team's harmony.
    • That leaky pipe has been a constant troubler in the basement.
    • The old man was known as a troubler of the peace in the village.
Antonyms
What does "troubler" mean? | whatsthatwordmean | whatsthatwordmean