[bù dàng]
unsuitable; improper; inappropriate
unfair verdict
不当裁决
illegal profit; ill-gotten gains
不当得利
improper arrest; unjust arrest
不当逮捕
unwarranted intervention
不当干涉
unjust judgement
不当判决
improper act; undue behaviour
不当行为
undue delay
不当延误
not be handled properly
处理不当
wrong choice of words
措词不当
They were shocked by the impropriety of the young man's action.
他们为那年轻人的不当举止而感到震惊。