separatism
2 synonyms for separatism, grouped by meaning and by how common each one is.
Noun — The belief that certain groups, institutions or places should be kept separate from each other, such as church and state, or a colony from the country that ruled it.
Synonyms
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
separationism