Synonyms for Swollen-headed:

• adj.

  •boastful (adjective)
  • full of hot air,
  • self-applauding,
  • big-headed,
  • swanky,
  • big,
  • smart-alecky,
  • Strutting,
  • Vaunting,
  • self-aggrandizing,
  • snooty,
  • on ego trip,
  • arrogant,
  • snootiest,
  • too big for one's britches,
  • exultant,
  • pretentious,
  • know-it-all,
  • pompous,
  • bombastic,
  • loudmouth,
  • smart alecky,
  • vainglorious,
  • stuck-up,
  • windbag,
  • swollen-headed,
  • crowing,
  • cocky,
  • hifalutin,
  • hot stuff,
  • swaggering,
  • puffed-up.
  •cocky (adjective)
  • cocksure.
  •cocky/cocksure (adjective)
  • smarty,
  • overweening,
  • self-confident,
  • presumptuous,
  • certain,
  • wise guy,
  • hubristic,
  • brash,
  • overconfident,
  • lordly,
  • nervy,
  • positive,
  • smarty pants,
  • smart aleck,
  • confident,
  • bumptious,
  • sure.
  •conceited (adjective)
  • big talking,
  • self-important,
  • bigheaded,
  • snotty,
  • narcissistic,
  • puffed up,
  • phony,
  • immodest,
  • ham,
  • gall.
  •self-important (adjective)
  • overbearing,
  • smug.
  •vain (adjective)
  • ostentatious,
  • inflated,
  • pleased with oneself,
  • egoistic,
  • high-and-mighty,
  • egocentric,
  • haughty.

• n.

  •proud (noun)
  • proud.

• Other synonyms:

  •adj.
  • boastful,
  • hotshot,
  • conceity,
  • galler,
  • hotdogger,
  • hotdogging,
  • over-confident,
  • smart guy,
  • stuck up.
  •n.
  • conceited,
  • egotistic,
  • egotistical,
  • self-conceited,
  • swollen,
  • vain.

Antonyms for Swollen-headed:

• adj.

  • boastful
    deprecating, modest.
  • cocky
    tentative.
  • cocky/cocksure
    unself-confident, uncertain, unsure, humble.
  • conceited
    meek, diffident, timid, self-conscious, shy.