disciplinable

adjective3

1. •
   For which one is liable to be disciplined or punished.
2. •
   That can be instructed (by discipline); able to be taught.

   • Plato affirmeth, that melancholy minds are more excellent and disciplinable; So are there none more inclinable unto follie. — 1603
3. •
   (no longer used) Relating to discipline; disciplinary.