Stuffiness is airlessness in a room, or stiff formality in a person. The stuffiness of the hall.
The physical sense is usually carbon dioxide rather than heat, which is why opening a window works. The formal sense is a complaint about manner rather than about rules.
1nounstuffinessAirlessness in a room, or stiff formality in a person.
“The stuffiness of the room sent half the audience to sleep.”
stuffiness is a quality.
From stuffy + -ness.
Etymology from Wiktionary, CC BY-SA