WordNet sense 1 (resisting control or authority):

rebellious

WordNet sense 2 (disposed to or in a state of mutiny):

mutinous

WordNet sense 3 (unwilling to submit to authority):

disobedient, unruly

WordNet sense 4 (disposed to or engaged in defiance of established authority):

resistant, resistive

WordNet sense 5 (boldly resisting authority or an opposing force):

defiant, noncompliant