Synonyms of stuck-up

1 Syllable
smug, vain
2 Syllables
snobby, snippy, haughty, haughtier, snotty, smuggest, pompous, boastful, snooty, snootier, cocky
3 Syllables
self-loving, vainglorious, wiseguy, bigheaded, up-stage, pretentious, self-seeking, self-serving, big-headed, swellheaded, uppity, egoistic, puffed-up, arrogant, conceited
4 Syllables
egotistic, self-concerned, highfalutin, condescending, patronizing, high-and-mighty, self-respecting, ostentatious, unsociable, self-involved, egocentric, egoistical, insociable, self-admiring, hoity-toity, narcissistic, dismissive, hifalutin, self-applauding
5 Syllables
megalomaniac, egotistical, self-aggrandizing
6 Syllables
individualistic