predetermined role

noun phrase
UK /ˌpriːdɪˈtɜːmɪnd rəʊl/
US /ˌpriːdɪˈtɜːrmɪnd roʊl/

A job or part that is decided for someone before they even start.

In the school play, each student had a predetermined role to act out.


OTHER MEANINGS

2. A duty in a game or story that is planned ahead of time.

The board game gives every player a predetermined role, like explorer or builder.

3. The part someone is expected to play in a family or group, decided by others.

As the oldest child, he felt he had a predetermined role of looking after his siblings.

4. A function in a machine or system that is set before it runs.

Each robot arm has a predetermined role on the assembly line.