1. designed or used to defend against aircraft or aerial attack
Usage: military term; often used in compound nouns (e.g., antiair missile, antiair defense)

Examples

• The base deployed antiair weapons to protect against enemy bombers.
• Antiair defense systems were positioned around the perimeter.
• The military installed new antiair batteries along the coast.
• Antiair missiles can reach targets at high altitudes.
• The country upgraded its antiair capabilities during the conflict.