Source : Webster's Revised Unabridged Dictionary (1913)

Luckless \Luck"less\, a.
   Being without luck; unpropitious; unfortunate; unlucky;
   meeting with ill success or bad fortune; as, a luckless
   gamester; a luckless maid.

         Prayers made and granted in a luckless hour. --Dryden.
   -- {Luck"less*ly}, adv. -- {Lock"less*ness}, n.

Source : WordNet®

luckless
     adj : having or bringing misfortune; "Friday the 13th is an
           unlucky date" [syn: {unlucky}] [ant: {lucky}]