1. a person who advocates for or works toward the reunification of divided groups, organizations, or territories

Examples

• The reunionist campaigned for bringing the two political parties back together.
• As a reunionist, she believed the divided church denominations should merge again.
• The reunionist movement gained support after years of territorial separation.
• He was known as a reunionist who worked to heal the split in the organization.
• The reunionist argued that unity would strengthen both sides.
• Many reunionists attended the conference to discuss reconciliation strategies.