You are the rudest person I've ever met.

你是我所见过的人种最粗鲁的。

The rudest thing you do is to ignore someone!

我迟早会扯平这件事；

A group of kindred in that stage of ignorance is rudest that can be imagined.

亲属关系处在那种无知状态的一群是能想得到的最蒙昧的了。

Not that all architectural ornament is to be neglected even in the rudest periods;

这倒不是说一切建筑的装饰甚至可以在最初的阶段里完全忽略掉；

"To arrive early is unfortunate, but to arrive late is the rudest thing imaginable, " she says.

“约会时早到了不合适，晚到更不礼貌。” 她说道。