- egotist, egoist, swellhead - a conceited and self-centered person
--1 is a kind of unpleasant person, disagreeable person
--1 has particulars:bragger, braggart, boaster, blowhard, line-shooter, vaunter; egomaniac; exhibitionist, show-off; know-it-all, know-all; megalomaniac; miles gloriosus; popinjay