To his surprise, Professor Trelawney drew herself up at this suggestion, looking haughty.
Even Zabini had allowed a look of curiosity to mar his haughty features.
Ron muttered to Harry, looking at Hermione’s haughty profile.
Some students were hurried away from Hogwarts by their parents over the next couple of days — the Patil twins were gone before breakfast on the morning following Dumbledore’s death and Zacharias Smith was escorted from the castle by his haughty-looking father.
There are no more uses of "haughty" in the book.
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It is a story about a haughty princess who has a great fall.