The AI-powered English dictionary
third-person singular simple present unjoins, present participle unjoining, simple past and past participle unjoined
(transitive) To separate or detach (things that were joined). examples
(transitive) To cease to be a member of; to leave. quotations examples
The leader would say a pleading "Hey, fellas," instead of a commanding and enforcing "Ach-tung!" So I unjoined the Boy Scouts.
1990, Kurt Gabel, William C. Mitchell, The Making of a Paratrooper