- secessionist⇄adj. favoring or taking part in secession; separatist.
Ex. ... still another attempt to force the secessionist province of Katanga back under the authority of the central government (Time). - secessionist⇄noun 1. a person or group that favors secession.
2. a person who secedes.
(SYN) seceder.
3. Also, Secessionist. a person who supported or participated in the secession of the Southern states from the Union in 1860-61. - secessionist⇄secessionist, noun, adjective.