separatist
[noun]
Synonyms: heretic, dissenter, dissident, misbeliever, nonconformist, schismatic, schismatist, sectary

[TahlilGaran] English Synonym Dictionary ▲

sep‧a‧ra‧tist /ˈsepərətəst, ˈsepərətɪst/ noun [countable]
[Word Family: noun: separation, separates, separatist, separatism, separator, inseperability; adjective: separable ≠ inseparable, separate, separated; adverb: inseparably, separately; verb: separate]
someone who belongs to a group that wants to start a new country with its own government, by separating from the country that they belong to now
—separatism noun [uncountable]

[TahlilGaran] Dictionary of Contemporary English ▲