verb (used with object)
- to remove (a person) from one’s list of friends, or contacts, on a social media website.
- (tr) to remove (a person) from the list of one’s friends on a social networking website
in the Facebook sense, attested from November 2007, from un- (1) “not” + friend. Related: Unfriended; unfriending. A noun unfriend “enemy” is recorded from late 13c., chiefly in Scottish, and was still in use in the 19th century.