Source : Webster's Revised Unabridged Dictionary (1913)

Downhearted \Down"heart`ed\, a.
   Dejected; low-spirited.

Source : WordNet®

downhearted
     adj : low in spirits; "lonely and blue in a strange city";
           "depressed by the loss of his job"; "a dispirited and
           resigned expression on her face"; "downcast after his
           defeat"; "feeling discouraged and downhearted" [syn: {blue},
            {depressed}, {dispirited}, {down(p)}, {downcast}, {down
           in the mouth}, {low}, {low-spirited}]