The atmosphere of the gay but unventilated rooms was heavy and noxious.
It often occurs in unventilated tenements on stifling nights.
To be sure, the day was warm and the house was unventilated.
This latter was unventilated, but was trapped with an S pipe at bottom.
The dark, unventilated bedroom is going with them, and the open sewer.
It's a nasty, unventilated hole, ...