Definition of windowless in English:

windowless

adjective

  • Having no windows.

    ‘a tiny windowless room’
    • ‘The children, in one case study, liked their windowless classrooms.’
    • ‘Experience in windowless environments can enhance the overall understanding of people in underground space.’
    • ‘It's not difficult to have a good exit system in a windowless building.’
    • ‘The academic buildings were windowless on the back and arranged into a tight quadrangle.’
    • ‘People in windowless offices report less job satisfaction, less interest in their jobs and are less positive about the physical work conditions.’

Pronunciation

windowless

/ˈwɪndəʊləs/