society > inhabiting and dwelling > inhabited place > a building > parts of building > wall of building > [adjective] > types of wall (5)
Having no openings or passages for light. Architecture. Of walls, etc.: Without windows or openings; (a window or door) walled up.
Not panelled (in various senses).
Architecture. Made sloping, so as to prevent the lodgement of water; furnished with a weathering or water-table.