1. a person who supports or advocates for the division of a country, territory, or political entity into separate parts
Usage: political

Examples

• The partitionist argued that dividing the region would bring peace to both communities.
• Many partitionists believed that separate states would better serve each group’s interests.
• The politician was labeled a partitionist for supporting the territorial split.
• Partitionists and unionists debated the proposal at the conference.
• The partitionist movement gained momentum after years of conflict.
• Critics accused the partitionist of promoting division rather than unity.