unruliness       
noun [ U ] uk/ʌnˈruː.li.nəs/ us/ʌnˈruː.li.nəs/
 (人)难以控制,难驾驭,难管束
the quality of being difficult to control
  He is a peaceful person who dislikes unruliness and disorder, and prefers calm. 他是一个平和的人,不喜欢无序和混乱,更喜欢平静。 
 It was not the unruliness of the pupils that drove her to quit. 促使她辞职的并不是学生难以管束。 
 See: unruly
 - More examples
- About 4,000 cases of in-flight passenger unruliness occur every year.
- He went to the Naval Academy, where his pattern of unruliness and defiance continued.
- Are the boys really messier, or are they fulfilling their teacher's expectation of boyish unruliness?