sightless

/ˈsaɪtləs/
adjective
  1. Unable to see; blind.
    • The sightless man navigated the busy street with his cane.
    • A sightless fish lives in the dark cave where eyes are useless.
    • The old dog grew sightless over the years but still knew every corner of the house.
  2. Lacking the ability to see or perceive; unseeing (often used figuratively).
    • The statue's sightless eyes stared blankly into the distance.
    • The window was sightless, covered in thick grime.
    • He gave her a sightless stare, lost in thought.