From Longman Dictionary of Contemporary Englishstuck-upˌstuck-ˈup adjective informal PROUDproud and unfriendly because you think you are better and more important than other people – used to show disapproval SYN snooty His wife was a bit stuck-up.
Examples from the Corpus
stuck-up• We thought his wife was stuck-up.• I can't stand her - she's so stuck-up.• The children who go to that school are a bit stuck-up.• The irony was that those who had observed it had considered her spoiled and stuck-up.• She liked to show a matey interest in things, be one of the boys, prove she wasn't stuck-up and so on.• Too stuck-up, considering what she was.• the spoiled, stuck-up daughter of a millionaire• a pompous, stuck-up little man• Tanya is so stuck-up. She won't go out with anyone who went to a state college.• Daughter Amanda is more stuck-up than a chimney sweep's brush. 