ameliorator

/əˈmiːliəˌreɪtər/
noun
  1. A person or thing that makes something better or improves a situation.
    • Community volunteers are often the best ameliorators of local problems.
    • She was known as an ameliorator of workplace conflicts, always finding ways to bring people together.
    • The new software acted as an ameliorator, streamlining the entire ordering process.
Antonyms
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