Wayward

disobedient unruly willful fractious rebellious insubordinate obstinate stubborn ungovernable unmanageable headstrong perverse recalcitrant refractory self-willed incorrigible intractable mulish obdurate restive erratic capricious fickle unpredictable variable inconstant changeable undependable flighty whimsical self-indulgent disorderly delinquent immoral uncompliant ornery froward cross-grained contumacious balky errant aberrant arbitrary