conceited, arrogant, or snobbish
WordReference Random House Learner's Dictionary of American English © 2025
ˈstuck-ˈup,
adj.
WordReference Random House Unabridged Dictionary of American English © 2025- Informal Termssnobbish and conceited;
having an overly high opinion of oneself.
stuck-up
(stuk′up′),USA pronunciation adj. [Informal.]
stuck′-up′ness, n.
- Informal Termssnobbishly conceited.
- 1820–30
- vain, arrogant, snobbish, snooty.
Collins Concise English Dictionary © HarperCollins Publishers::
'stuck-up' also found in these entries (note: many are not synonyms or translations):