1. 
[syn: conceited, egotistic, egotistical, self-conceited, swollen, swollen-headed, vain]
The Collaborative International Dictionary of English v.0.48:
Conceited \Con*ceit"ed\, a.
   1. Endowed with fancy or imagination. [Obs.]
      [1913 Webster]
            He was . . . pleasantly conceited, and sharp of wit.
                                                  --Knolles.
      [1913 Webster]
   2. Entertaining a flattering opinion of one's self; vain.
      [1913 Webster]
            If you think me too conceited
            Or to passion quickly heated.         --Swift.
      [1913 Webster]
            Conceited of their own wit, science, and politeness.
                                                  --Bentley.
      [1913 Webster]
   3. Curiously contrived or designed; fanciful. [Obs.]
      [1913 Webster]
            A conceited chair to sleep in.        --Evelyn.
   Syn: Vain; proud; opinionated; egotistical.
        [1913 Webster]
WordNet (r) 3.0 (2006):
conceited
    adj 1: characteristic of false pride; having an exaggerated
           sense of self-importance; "a conceited fool"; "an
           attitude of self-conceited arrogance"; "an egotistical
           disregard of others"; "so swollen by victory that he was
           unfit for normal duty"; "growing ever more swollen-headed
           and arbitrary"; "vain about her clothes" [syn:
           conceited, egotistic, egotistical, self-
           conceited, swollen, swollen-headed, vain]
Moby Thesaurus II by Grady Ward, 1.0:
59 Moby Thesaurus words for "conceited":
   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