6
boastful(adjective, person, arrogant, selfish, proud)
6
proud(adjective, person, selfish)
5
egotistical(adjective, person, selfish)
4
arrogant(adjective, person, selfish)
4
narcissistic(adjective, person, selfish)
4
vain(adjective, person, selfish, egotistical)
4
vainglorious(adjective, person, selfish)
3
conceited(adjective, person, selfish)
3
egocentric(adjective, person, selfish)
3
egotistic(adjective, person, selfish)
3
immodest(adjective, person, selfish)
3
stuck-up(adjective, person, snobbish)
3
swaggering(adjective, person, selfish)
2
cocky(adjective, person, selfish)
2
haughty(adjective, person)
2
self-important(adjective, person)
1
bragging
1
cocksure(adjective, person, selfish)
1
full of oneself(adjective, person)
1
hifalutin
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APASmart Define. (2016). big-headed thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/big-headed/thesaurus/synonyms
ChicagoSmart Define. 2016. "big-headed thesaurus" https://smartdefine.org/big-headed/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, big-headed thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/big-headed/thesaurus/synonyms>.
MLASmart Define. "big-headed thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/big-headed/thesaurus/synonyms>