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airtight

  • adjective

Impermeable to air or other gases.

Other meanings

  1. Having no weak points or flaws.

    “We have an airtight argument they won’t be able to punch holes in.”

  2. Highly reserved in some matter, particularly tight-lipped or tight-fisted.

Related words

  • airtightly
  • nonairtight
  • airtighten
  • airtightness

Where this comes from

This definition is adapted from “airtight” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.