Synonyms of airless in English:

airless


See US English definition of airless

See UK English definition of airless

adjective

1‘a hot, airless room’

SYNONYMS
stuffy, close, stifling, suffocating, breathless, sultry, muggy, fuggy, stale, humid, oppressive
unventilated, badly ventilated, poorly ventilated
smoky
British dialect claggy
ANTONYMS

airy, ventilated