not having enough control or organization; behaving badly opposite disciplined无组织纪律的;没规矩的;缺乏管教的 His talent is raw and undisciplined. 他的才华是未经雕琢的。 an undisciplined group of schoolchildren 一群不守纪律的小学生 They knew they would be facing an undisciplined army. 他们知道他们将面临一支纪律涣散的军队。 This was an undisciplined performance from his team. 这是他们团队一次组织混乱的演出。