1. to remove protection from; to leave without defense
Usage: rare
2. to cease being watchful or cautious
Usage: rare

Examples

• The general unguards the fortress by withdrawing the troops.
• She unguards her emotions only with close friends.
• The security system unguards the building after hours.
• He unguards his true feelings in his diary.
• The treaty unguards the border between the two nations.