The state or condition of being poorly ventilated; lacking good air circulation, having stale air.(noun)
The state or quality of a (relative) vacuum.(noun)
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Use "airlessness" in a sentence
"Since I can't very well pray, I still hope that more will want to share in conversations that bring openings rather than the airlessness of questions that are silenced or not even formed."
"Fifty-six minutes of heat and stress and airlessness."
"Yet somehow CSI, CSI Miami, CSI New York and CSI New Rochelle are still on the air well on the airlessness of space via SKY-TV anyway."