Definitions

1. verb

to discharge or dismiss from service, especially in an emergency or in time of war.

“The general ordered the troops to unmuster and prepare for retreat.”

2. noun

a body of troops or vehicles that are being discharged or dismissed from service.

“The unmustered troops were seen marching away from the battlefield.”

3. adjective

having been discharged or dismissed from service, especially in an emergency or in time of war.

“The unmustered soldiers were left to fend for themselves.”