Antonyms of adj unventilated

1 sense of unventilated

Sense 1
unventilated (vs. ventilated) -- (not ventilated; "stuffy unventilated rooms")

ventilated (vs. unventilated) -- (exposed to air; "a well ventilated room")
        => aired, airy -- (open to or abounding in fresh air; "airy rooms")
        => louvered -- (supplied with louvers for ventilation; "a louvered door")
        => vented -- (supplied with a vent or vents for intake of air or discharge of gases)

Similarity of adj unventilated

1 sense of unventilated

Sense 1
unventilated (vs. ventilated) -- (not ventilated; "stuffy unventilated rooms")
       => airless, close, stuffy, unaired -- (lacking fresh air; "a dusty airless attic"; "the dreadfully close atmosphere"; "hot and stuffy and the air was blue with smoke")
       => fuggy -- ((British informal) poorly ventilated)
       => unaerated, unoxygenated -- ((used of blood) not supplied with oxygen)
       => unvented -- (not provided with vents)
          Also See-> breathless#1, dyspneic#1, dyspnoeic#1, dyspneal#1, dyspnoeal#1