Source : Webster's Revised Unabridged Dictionary (1913)

Unsighted \Un*sight"ed\, a.
   1. Not sighted, or seen. --Suckling.

   2. (Gun.) Not aimed by means of a sight; also, not furnished
      with a sight, or with a properly adjusted sight; as, to
      shoot and unsighted rife or cannon.

Source : WordNet®

unsighted
     adj : unable to see [syn: {blind}] [ant: {sighted}]