1) Capable of being instructed 
• (a.) Capable of being disciplined or improved by instruction and training. • (a.) Liable or deserving to be disciplined; subject to disciplinary punishment; as, a disciplinable offense.
Dis'ci·plin·a·ble adjective [ Confer French disciplinable . See Discipline .] 1. Capable of being disciplined or improved by instruction and training. 2. Liable or deserving to be disciplined; subject to disciplinary punishment; as, a disciplinable offense. 
subject to or meriting disciplinary action: a disciplinable breach of rules. · capable of being instructed.