1. We were completely dumbfounded by her rudeness.
    她粗鲁无礼, 把我们吓呆了.

2. I remonstrated with him about his rudeness.
    他粗暴无礼, 我给他提了意见.

3. I find his rudeness unbearable.
    我觉得他粗暴无礼难以忍受.