1. to deprive of courage, strength, or vigor; to weaken or discourage
Usage: present participle of ‘unman’
2. to remove the crew from a ship or the personnel from a position
Usage: nautical; military

Examples

• The tragic news was unmanning him completely.
• Fear was unmanning the soldiers before the battle.
• The captain ordered the unmanning of the damaged vessel.
• The sight of the destruction was unmanning to even the bravest witnesses.
• They began unmanning the fort as enemy forces approached.
• The emotional speech was unmanning several members of the audience.