undisciplined
🇺🇸
/ˌʌnˈdɪsəplɪnd/
🇬🇧
/ˌʌnˈdɪsəplɪnd/
adjective
R
Lacking self-control or order; behaving poorly
The teacher was frustrated with the undisciplined behavior of the students during class.
老师对学生们在课堂上的无纪律行为感到沮丧。
translation
无纪律