Not allocated to a specific person, group, or purpose.
The unassigned tasks were piling up in the project management software.
Not designated or appointed to a particular role or position.
The unassigned seats in the theater were quickly filled by latecomers.
unassignverb
To remove an assignment or task from someone or something.
The manager decided to unassign the project from the team due to their heavy workload.
In computing, to detach or unlink a variable, file, device, or other resource so that it is no longer associated with a particular value, handle, or process.
After writing the data, the routine unassigns the file to free the channel.