\Sight"less\, a.
1. Wanting sight; without sight; blind.
         Of all who blindly creep or sightless soar. --Pope.
2. That can not be seen; invisible. [Obs.]
         The sightless couriers of the air.    --Shak.
3. Offensive or unpleasing to the eye; unsightly; as,
   sightless stains. [R.] --Shak. -- {Sight"less*ly}, adv.-
   {Sight"less*ness}, n.