Source : Webster's Revised Unabridged Dictionary (1913)

Conceitedly \Con*ceit"ed*ly\, adv.
   1. In an egotistical manner.

   2. Fancifully; whimsically.

Source : WordNet®

conceitedly
     adv : in a conceited manner; "he always acts so conceitedly!"
           [syn: {self-conceitedly}, {with conceit}]