separatist

ot noun

1. A person who advocates or seeks the splitting of one country or territory into two politically independent countries or territories. On rare occasions French-Canadian separatists have resorted to violence.
2. Someone who advocates separation from the established Church; a member of any of various sects or schismatics.

sifat adjective

1. Advocating or seeking the separation of one country or territory into two politically independent countries or territories. He is a Scottish nationalist and has a large collection of separatist literature.
2. Advocating ecclesiastical separation.