stuck-up
(Informal)
[adjective]
Synonyms: snobbish, arrogant, bigheaded (informal), conceited, haughty, proud, snooty (informal), toffee-nosed (slang, chiefly Brit.)

---

Related Idioms: too big for one's breeches, wise in one's own conceit

[TahlilGaran] English Synonym Dictionary ▲

ˌstuck-ˈup adjective informal
proud and unfriendly because you think you are better and more important than other people – used to show disapproval Synonym : snooty:
His wife was a bit stuck-up.

[TahlilGaran] Dictionary of Contemporary English ▲

stuck up
to act as if other people are not as good as you are, to be conceited
We do not like the new woman at work because she is stuck up and thinks that she is better than the rest of us.

[TahlilGaran] English Idioms Dictionary ▲

stuck up
adj., informal Acting as if other people are not as good as you are; conceited; snobbish.
Mary is very stuck-up, and will not speak to the poor children in her class.

[TahlilGaran] English Idioms Dictionary ▲