Definition of airtight in English:

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Pronunciation: /ˈɛːtʌɪt/


1Not allowing air to escape or pass through: an airtight box
More example sentences
  • Most modern stoves are airtight and allow the amount of combustion air that feeds the flame to be controlled.
  • A small airtight box divided into sections with strips of cardboard is ideal.
  • The foil is there largely for aesthetic reasons since the cork should provide an airtight seal and only a faulty one will allow any seepage of wine.
sealed, closed, shut tight, tight, impermeable, hermetically sealed;
watertight, waterproof
1.1Having no weaknesses; unassailable: she had an airtight alibi
More example sentences
  • He had pulled off a big score recently, and with an airtight alibi he'd actually paid a couple of women to accompany him to Ibiza for a wild week while the heat died down.
  • Illingworth siblings do not exude that air; certainly Duke has motives for crime, though his alibi seems airtight.
  • You cannot have airtight, foolproof countermeasures that would prevent incidents of kidnapping like this.
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