58 entries under adjective topic. ×

15
close(open, warm, hot, stale)
14
stuffy(close, open, warm, hot)
12
stifling(open, warm, hot, tight)
10
oppressive(warm, hot, tight, stale)
9
unventilated(warm, hot, tight, stale)
8
breathless(warm, hot, tight, stale)
7
suffocating(warm, hot, tight, stale)
5
musty(warm, tight, stale, rotten)
5
stale(warm, tight, rotten, musty)
5
unaired
5
windless(calm, still, breath)
4
breezeless(calm, still, breath)
4
still(calm, breath)
4
sultry(warm, hot, tight, stale)
3
muggy(warm, hot, tight, stale)
2
frowsty
2
fusty(warm, tight, stale, musty)
2
heavy(warm, hot, tight, stale)
1
boiling(hot, scorching, roasting, stifling)
1
faithful
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APASmart Define. (2015). airless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/airless/thesaurus/synonyms
ChicagoSmart Define. 2015. "airless thesaurus" https://smartdefine.org/airless/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, airless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/airless/thesaurus/synonyms>.
MLASmart Define. "airless thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/airless/thesaurus/synonyms>