Definitions

1. noun

A person or thing that interferes with or hinders something, often in an unwelcome or uninvited manner.

“The company was criticized for being a constant interferer in the negotiations between the two countries.”

2. verb

To interfere with or hinder something, often in an unwelcome or uninvited manner.

“She tried not to interfere with his work, but found it difficult to resist the urge to offer suggestions.”