unruly
adjective uk/ʌnˈruː.li/ us/ʌnˈruː.li/
（人）难以控制的，难驾驭的，难管束的
Unruly people are difficult to control and often do not obey rules.
an unruly class of adolescents 一个难以管理的少年班
（头发）难梳理的，蓬乱的
Unruly hair is difficult to keep tidy, often sticking up or out.
an unruly mop of black hair 一头难梳理的乱蓬蓬的黑发