self-important

self-important
    adj 1: having or showing feelings of unwarranted importance out
           of overbearing pride; "an arrogant official"; "arrogant
           claims"; "chesty as a peacock" [syn: {arrogant},
           {chesty}, {self-important}]
    

Self-important \Self`-im*por"tant\, a.
   Having or manifesting an exaggerated idea of one's own
   importance or merit.
   [1913 Webster]
    

103 Moby Thesaurus words for "self-important":
      arrogant, assured, big, big-league, big-name, big-time, bigwig,
      bigwigged, bloated, bombastic, cocksure, complacent, conceited,
      confident, consequential, considerable, convinced, decided,
      determined, double-barreled, earthshaking, egotistical, flatulent,
      formal, gassy, grand, grandiloquent, great, haughty, heavyweight,
      high-powered, hubristic, important, inflated, magisterial, major,
      material, momentous, name, narcissan, narcissine, narcissistic,
      narcistic, overbearing, overconfident, overproud, oversure,
      overweening, persuaded, poised, pompous, pontifical, positive,
      presumptuous, proud, puffy, reassured, secure, self-absorbed,
      self-admiring, self-approving, self-assuming, self-assured,
      self-complacent, self-confident, self-congratulating,
      self-congratulatory, self-content, self-contented, self-delighting,
      self-endeared, self-esteeming, self-gratulating, self-gratulatory,
      self-loving, self-reliant, self-respecting, self-satisfied,
      self-seeking, self-sufficient, significant, smug, snobbish, snooty,
      snotty, solemn, stilted, stuck-up, stuffy, substantial, superior,
      sure, swollen, tumid, turgid, unafraid, undoubting, unfaltering,
      unhesitating, unwavering, vain, vainglorious, world-shaking