intermeddler
/ˌɪntərˈmɛdlər/
noun
- A person who interferes in the affairs of others without being asked or needed.
- The neighbor is such an intermeddler, always giving advice about how to raise our kids.
- My uncle is a well-meaning intermeddler who tries to fix problems no one asked him to solve.
- The committee asked the intermeddler to stop attending meetings because he disrupted every discussion.