Brassbound

adjective

1. Banded or trimmed with brass or a similar metal, such as bronze.
2. Inflexible; rigid.

   "brassbound party loyalists."

3. Bold and impudent; brazen.
4. inflexibly entrenched.

   "brassbound traditions"

5. having trim or fittings of brass.

   "a brassbound campaign chest; the heavy brass-bound door"