Formal:
* Confined: This word emphasizes the physical restriction.
* Imprisoned: This implies a more serious level of confinement, usually by law.
* Enclosed: This emphasizes being surrounded.
* Restricted: This emphasizes limitations on movement or freedom.
Informal:
* Stuck: This implies being unable to move or escape.
* Trapped: This emphasizes being unable to get out of a difficult situation.
* Bottled up: This implies feeling trapped emotionally.
* Hemmed in: This emphasizes feeling squeezed or restricted.
Figurative:
* Cage: This metaphor implies feeling like you are in a prison-like situation.
* Boxed in: This metaphor emphasizes feeling limited or unable to think freely.
The best word to use will depend on the specific situation and the desired tone.