Disobedient usually implies negative feelings; used when someone's behavior is not approved of. The teacher was frustrated with the disobedient students.
Pro Tip 2/3
Authority Figures
Often used when someone goes against an authority figure like parents, teachers, or bosses. She was grounded for being disobedient to her parents.
Pro Tip 3/3
Expectations
The word suggests someone is intentionally not meeting expectations or obligations. Despite his promises, his disobedient actions spoke louder.