recalcitrant

顽抗的、不服管束的、桀骜不驯的正式

The new teacher struggled to control a few recalcitrant students.

新老师难以管住几个不服管束的学生。

难处理的、棘手的正式

Engineers finally replaced the recalcitrant valve in the cooling system.

工程师最后换掉了冷却系统里那个难处理的阀门。

顽抗者、不服从者正式

A handful of recalcitrants refused to sign the new agreement.

少数顽抗者拒绝签署新的协议。