stuck-up vs bigheaded

stuck-up and bigheaded both are adjectives.

Word	Noun	Adjective	Verb	Adverb
stuck-up	No	Yes	No	No
bigheaded	No	Yes	No	No

As adjectives, stuck-up and bigheaded are synonyms defined as:

stuck-up and bigheaded: (used colloquially) overly conceited or arrogant

Other synonyms of stuck-up include persnickety, snooty, snot-nosed, snotty, too big for one's breeches, uppish.

stuck-up (adjective)	bigheaded (adjective)
(used colloquially) overly conceited or arrogant	(used colloquially) overly conceited or arrogant