windowless
1.The man was immured in a windowless prison cell.
2.Tucked within a nondescript industrial park outside Victoria, British Columbia , CeilFor Inc. occupies two almost windowless Cement-block buildings with shuttered loading-dock doors.
3.But the family turned out to be a gang of militants who chained Nuss to the floor of a stifling, mosquito-ridden windowless room, took photos of him with a gun to his head and demanded the release of comrades jailed for fighting Indian rule in Kashmir.

