1. surrounded by a rampart, wall, or fortification; enclosed by a defensive structure
Usage: formal; chiefly historical or military contexts

Examples

• The circumvallated city was protected by thick stone walls on all sides.
• Roman legions built circumvallated camps to defend against enemy attacks.
• The circumvallated fortress stood on the hilltop, dominating the valley below.
• Medieval towns were often circumvallated to withstand sieges.
• The circumvallated settlement provided security for its inhabitants during times of conflict.