Definition of non-interferer in English:

non-interferer

noun

  • A person who does not interfere; (also) someone who favours (especially political or military) non-interference.

Origin

Mid 19th century; earliest use found in Thomas P. Thompson (1783–1869), army officer and politician. From non- + interferer.

Pronunciation

non-interferer

/ˌnɒnɪntəˈfɪərə/