Meaning
Impermeable to air or other gases.
Etymology
Origin: Unknown
From air + tight.
Synonyms & Antonyms
Synonyms
hermeticballproofbombproofbulletproofburglarproofclosecompactcorrosionproofdampproofdustproof
Antonyms
breathabletranspirable
NYT Puzzle Appearances
Accepted in 3 recorded puzzles: