swellhead

[ swel-hed ]
/ ˈswɛlˌhɛd /

noun

a vain or arrogant person.

Origin of swellhead

An Americanism dating back to 1835–45; swell + head

Related forms

swell·head·ed, adjectiveswell·head·ed·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019