Source : Webster's Revised Unabridged Dictionary (1913)

Pompous \Pomp"ous\, a. [F. pompeux, L. pomposus. See {Pomp}.]
   1. Displaying pomp; stately; showy with grandeur;
      magnificent; as, a pompous procession.

   2. Ostentatious; pretentious; boastful; vainlorious; as,
      pompous manners; a pompous style. ``Pompous in high
      presumption.'' --Chaucer.

            he pompous vanity of the old schoolmistress.
                                                  --Thackeray.
      -- {Pom"ous*ly}, adv. -- {Pomp"ous*ness}, n.

Source : WordNet®

pompous
     adj : puffed up with vanity; "a grandiloquent and boastful
           manner"; "overblown oratory"; "a pompous speech";
           "pseudo-scientific gobbledygook and pontifical hooey"-
           Newsweek [syn: {grandiloquent}, {overblown}, {pontifical},
            {portentous}]