1. a region that is culturally or historically related to one country but is controlled by another
Usage: political science; historical

Examples

• The politician spoke passionately about reclaiming the irredenta.
• Historical irredenta have been sources of international conflict.
• The treaty addressed the status of several irredenta in the region.
• Nationalist movements often focus on recovering lost irredenta.
• The concept of irredenta played a role in 19th-century European politics.
• Border disputes frequently involve claims to irredenta.