1. having a causeway; provided with or connected by a causeway
Usage: often used in archaeological or historical contexts

Examples

• The causewayed settlement was built on an island in the middle of the lake.
• Archaeologists discovered a causewayed enclosure dating back to the Neolithic period.
• The causewayed approach to the castle made it easier to defend during medieval times.
• The ancient causewayed pathway connected the two hilltop communities.