Airtight
Airtight adjective - Not allowing air or gas to pass in or out.
Cite this Source
Close and Airtight. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/airtight/close
Airtight & Close. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/airtight/close>.
Close or Airtight. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/airtight/close.
Google Ngram Viewer shows how "airtight" and "close" have occurred on timeline