1. 
[syn: blind, unsighted]
The Collaborative International Dictionary of English v.0.48:
Unsighted \Un*sight"ed\, a.
   1. Not sighted, or seen. --Suckling.
      [1913 Webster]
   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.
      [1913 Webster]
WordNet (r) 3.0 (2006):
unsighted
    adj 1: unable to see; "a person is blind to the extent that he
           must devise alternative techniques to do efficiently
           those things he would do with sight if he had normal
           vision"--Kenneth Jernigan [syn: blind, unsighted]
           [ant: sighted]