Synonyms and related words :
Gascon, aggressively self-confident, arrogant, biggety, boastful, boasting, braggart, bragging, bumptious, chesty, cocky, complacent, coxcombical, dandified, dandy, egocentric, egotistical, fanfaron, fanfaronading, foppish, gasconading, haughty, immodest, know-it-all, narcissistic, obtrusive, overwise, peacockish, peacocky, perk, perky, pert, prideful, proud, puffed up, self, self-admiring, self-advertising, self-applauding, self-conceited, self-flattering, self-glorious, self-important, self-lauding, self-opinionated, self-satisfied, self-vaunting, smart-alecky, smug, snobbish, snotty, stuck-up, swelled-headed, thrasonic, thrasonical, vain, vainglorious, vaporing, vaunting