Source : Webster's Revised Unabridged Dictionary (1913)

Selfless \Self"less\, a.
   Having no regard to self; unselfish.

         Lo now, what hearts have men! they never mount As high
         as woman in her selfless mood.           --Tennyson.

Source : WordNet®

selfless
     adj : showing unselfish concern for the welfare of others [syn: {altruistic}]
           [ant: {egoistic}]