airtight

[ air-tahyt ]
See synonyms for airtight on Thesaurus.com
adjective
  1. preventing the entrance or escape of air or gas.

  2. having no weak points or openings of which an opponent may take advantage: an airtight contract.

Origin of airtight

1
First recorded in 1750–60; air1 + tight

Other words from airtight

  • airtightly, adverb
  • airtightness, noun

Words Nearby airtight

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use airtight in a sentence

British Dictionary definitions for airtight

airtight

/ (ˈɛəˌtaɪt) /


adjective
  1. not permitting the passage of air either in or out

  2. having no weak points; rigid or unassailable: this categorization is hardly airtight

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012