Wordnet 3.0
ADJECTIVE (1)
1. 
 lacking fresh air; 
- Example: "a dusty airless attic"- Example: "the dreadfully close atmosphere"- Example: "hot and stuffy and the air was blue with smoke"[syn: airless, close, stuffy, unaired]
WordNet (r) 3.0 (2006):
unaired
    adj 1: lacking fresh air; "a dusty airless attic"; "the
           dreadfully close atmosphere"; "hot and stuffy and the air
           was blue with smoke" [syn: airless, close, stuffy,
           unaired]