Definition of undisciplined adjective from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌʌnˈdɪsəplɪnd//
; NAmE NAmE//ˌʌnˈdɪsəplɪnd//
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lacking control and organization; behaving badly opposite disciplined His talent is raw and undisciplined. an undisciplined group of schoolchildren They knew they would be facing an undisciplined army. This was an undisciplined performance from his team.
See the Oxford Advanced American Dictionary entry: undisciplined