Source : Webster's Revised Unabridged Dictionary (1913)

Joyless \Joy"less\, a.
   Not having joy; not causing joy; unenjoyable. --
   {Joy"less*ly}, adv. -- {Joy"less*ness}, n.

         With downcast eyes the joyless victor sat. --Dryden.

         Youth and health and war are joyless to him. --Addison.

         [He] pining for the lass, Is joyless of the grove, and
         spurns the growing grass.                --Dryden.

Source : WordNet®

joylessness
     n : a feeling of dismal cheerlessness