Source : Webster's Revised Unabridged Dictionary (1913)

Pomposity \Pom*pos"i*ty\, n.; pl. {Pomposities}.
   The quality or state of being pompous; pompousness.
   --Thackeray.

Source : WordNet®

pomposity
     n : lack of elegance as a consequence of being pompous and
         puffed up with vanity [syn: {ostentation}, {ostentatiousness},
          {pompousness}, {pretentiousness}, {splashiness}, {inflation}]