他那不受约束的行为让整个团队的工作进度受到了影响。

His ___undisciplined behavior affected the whole team's progress.

这些学生不守纪律的行为让老师很头疼。

The teacher was frustrated by the ___undisciplined behavior of the students.

他的学习方式很散漫，缺乏系统性。

His ___undisciplined study habits lack any systematic approach.