simple past tense and past participle of unfriend

Having no friends; friendless.

One who unfriends somebody.

plural of unfriender

(rare) To sever as friends. / (social media) To defriend; to remove from one's friends list (e.g. on a social networking website).

One who is not a friend; an enemy.

present participle of unfriend

Third-person singular simple present indicative form of unfriend

(archaic) friendlessness