Definition of airtight in English:



  • 1Not allowing air to escape or pass through.

    ‘an airtight box’
    • ‘A small airtight box divided into sections with strips of cardboard is ideal.’
    • ‘When applied directly onto the trailer bed, the linings form a permanent airtight and watertight seal that prevents rust and corrosion.’
    • ‘This completely enclosed the peltier in an airtight seal.’
    • ‘It seemed as if we were a can of sardines sealed in an airtight container.’
    • ‘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.’
    • ‘A baby is placed inside a clear acrylic box, resembling an incubator, which creates an airtight seal around its chest.’
    • ‘She even sends them in an airtight bag to seal in freshness.’
    • ‘A small amount of sugar is added to the bottle before sealing it airtight.’
    • ‘Most modern stoves are airtight and allow the amount of combustion air that feeds the flame to be controlled.’
    • ‘The suitcases are sealed airtight and have huge orange labels attached to them.’
    • ‘The specimens were then wrapped in gauze soaked in normal saline solution, sealed in an airtight bag, and frozen until the time of testing.’
    • ‘This means that coffee should be packed in an airtight foil laminated bag with a one-way air valve to allow the bag to de-gas.’
    • ‘Because tubeless tires need to form an airtight seal, manufacturers must coat the inner walls of the tire with additional rubber.’
    • ‘It's hygienic, versatile, waterproof, airtight, cheap and of course durable.’
    • ‘Allow to cool slightly before storing in an airtight container or zip lock bag.’
    • ‘For tubeless tires, it allows the bead to seat easier and helps form an airtight seal.’
    • ‘The treated grain (which is still looks like whole grain) is pitted and sealed in an airtight clamp.’
    • ‘In the meantime, practice good sanitation, keeping counters and floors clean and sealing food in airtight containers.’
    • ‘The lightweight housing is made of magnesium alloy and is airtight, dustproof, waterproof and fully nitrogen purged.’
    • ‘The basic idea is to make an effectively airtight wall by sealing the exterior sheathing and the interior wall finish to the framing.’
    sealed, closed, shut tight, tight, impermeable, hermetically sealed
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    1. 1.1 Having no weaknesses; unassailable.
      ‘she had an airtight alibi’
      • ‘The case against flying is not so airtight.’
      • ‘Illingworth siblings do not exude that air; certainly Duke has motives for crime, though his alibi seems airtight.’
      • ‘And the case we had against them was airtight.’
      • ‘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.’
      • ‘The case against the ex-deacon was airtight’
      • ‘The secrecy was airtight.’
      • ‘You cannot have airtight, foolproof countermeasures that would prevent incidents of kidnapping like this.’
      • ‘The reason they did not try them is Hunter wanted an airtight case.’
      • ‘The legislators in Hawaii had thought of that before I did and the law was airtight.’
      • ‘Well, my part in the whole mess was to stay up all night and research so our case was airtight when we went before the district court.’
      • ‘The defense no longer was airtight.’
      • ‘Their [Chevron's] IP portfolio of roughly 5,000 active records was airtight’
      • ‘Build an airtight business case for new IT investments.’
      • ‘The government has an airtight case and was definitely not behind the explosion.’
      • ‘The Rockefeller interests were not in crisis, however: his monopoly was airtight.’
      • ‘Gays and lesbians will most likely be able to wed legally soon in Massachusetts following a landmark same-sex marriage ruling by the state's top court that experts said is airtight -- at least for now.’
      • ‘They needed to provide key corporate information to remote users, but in a way that was airtight in its security.’
      • ‘The band, as could be expected for one that toured so much, was airtight in their performance, almost to the point of seeming robotic.’
      • ‘Military officials insist their case for attacking the operation was airtight’
      • ‘The circle closed, and the irony was airtight.’
      indisputable, unquestionable, incontrovertible, undeniable, incontestable, irrefutable, unassailable, beyond dispute, beyond question, beyond doubt
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