- Rigid adherence to a particular sect, denomination, ideology, or party.
- They were discussing sectarianism between Shias and Sunnis.
- (politics) A political system in which power is shared among religious sects based on a constitutional formula distributing public offices among these sects
- In Lebanese sectarianism, one half of the members of parliament are Christians and the other half are Muslims.
rigid adherence to a particular sect, party or denomination