'Airless' often describes unpleasant indoor conditions where air feels heavy or unmoving. The crowded room remained airless despite the open window.
Pro Tip 2/3
Suffocating Feeling
The term can imply a suffocating, uncomfortable atmosphere, even causing difficulty breathing. He left the party early as the airless hall made him feel claustrophobic.
Pro Tip 3/3
Lack of Airflow
Use 'airless' to stress the absence of airflow, making a place feel stifling. In the airless attic, the heat was overwhelming.