11
narcissistic(adjective, conceited, self-love, egotistical, self-absorbed)
9
arrogant(adjective, haughty, proud, conceited, egotistic)
8
contemptuous(haughty, conceited, egotistic)
7
persnickety
7
snooty(adjective, arrogant, haughty, proud, conceited)
6
conceited(adjective, arrogant, haughty, proud, egotistic)
6
egotistical(adjective, self-love)
6
snotty(adjective, phony, vain, haughty, conceited)
5
snot-nosed
5
stuck-up(adjective, informal, self-love)
4
egoistic(adjective, self-love)
4
proud(arrogant, haughty, conceited, egotistic, vainglorious)
4
self-important(adjective, phony, arrogant, vain, haughty)
4
uppish
4
vain(adjective, phony, arrogant, haughty, proud)
4
vainglorious(adjective, self-love)
3
egotistic(adjective, arrogant, haughty, proud, conceited)
3
self-satisfied(adjective, pleased)
2
audacious(adjective, haughty, conceited, egotistic)
2
boastful
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APASmart Define. (2015). bigheaded thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/bigheaded/thesaurus/synonyms
ChicagoSmart Define. 2015. "bigheaded thesaurus" https://smartdefine.org/bigheaded/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, bigheaded thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/bigheaded/thesaurus/synonyms>.
MLASmart Define. "bigheaded thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/bigheaded/thesaurus/synonyms>