不得体

I was surprised by the impropriety of his remarks.

话不得体,我听了很诧异。

Your levity is unseemly at this time.

在这种场合,你轻率举是不得体。

His tactless words had incurred his father’s deep displeasure.

不得体话语使亲感到十分不快。

She bridled at the indelicate suggestion.

她对不得体暗示发怒了。