Source : Webster's Revised Unabridged Dictionary (1913)

Gladden \Glad"den\, v. t. [imp. & p. p. {Gladdened}; p. pr. &
   vb. n. {Gladdening}.] [See {Glad}, v. t.]
   To make glad; to cheer; to please; to gratify; to rejoice; to
   exhilarate.

         A secret pleasure gladdened all that saw him.
                                                  --Addison.

Source : WordNet®

gladdened
     adj : made joyful; "the sun and the wind on his back made him feel
           exhilarated--happy to be alive" [syn: {exhilarated}]