unwindowed

From un- +‎ windowed.

unwindowed (not comparable)

1. Without windows.
   • 1786, William Gilpin, Observations, relative chiefly to picturesque beauty‎^[1], London: R. Blamire, Volume 2, Section 21, p. 125:

     The chambers unwindowed, and almost unroofed, fluttering with rags of ancient tapestry, are the haunt of daws, and pigeons; which burst out in clouds of dust, when the doors are opened […]

   • 1993, Anthony Burgess, A Dead Man in Deptford‎^[2], New York: Carroll & Graf, published 1995, Part Two, p. 169:

     They were pushed, with some courtesy shown in the light or token nature of the push, through a hatch into unwindowed darkness where a candle set on a black stone showed walls of ill-hewn blocks […]

unwindowed

1. simple past and past participle of unwindow