Source : Webster's Revised Unabridged Dictionary (1913)

Jaunty \Jaun"ty\, a. [Compar. {Jauntier}; superl. {Jauntiest}.]
   [Formerly spelt janty, fr. F. gentil. See {Gentle}, and cf.
   {Genty}.]
   Airy; showy; finical; hence, characterized by an affected or
   fantastical manner.

Source : WordNet®

jaunty
     adj 1: marked by smartness in dress and manners; "a dapper young
            man"; "a jaunty red hat" [syn: {dapper}, {dashing}, {natty},
             {raffish}, {rakish}, {smart}, {spiffy}, {snappy}, {spruce}]
     2: having a cheerful, lively, and self-confident air; "looking
        chipper, like a man...diverted by his own wit"- Frances G.
        Patton; "life that is gay, brisk, and debonair"-
        H.M.Reynolds; "walked with a jaunty step"; "a jaunty
        optimist" [syn: {chipper}, {debonair}, {debonaire}]
     [also: {jauntiest}, {jauntier}]