abolitionist /ˌæ.bəˈlɪʃ.n̩.ɪst/adjective 2noun 2forms 3 adjective2 •In favor of the abolition of any particular institution or practice. •(historical) In favor of the abolition of slavery. noun2 •A person favoring or advocating for the abolition of any particular institution or practice.Both feminist and religiously inspired abolitionists have long viewed, and continue to view, male demand for commercial sex as a root cause of prostitution. — 2005 •(historical) A person favoring or advocating for the abolition of slavery. formsabolitionists · more abolitionist · most abolitionist