Definition of watertight in English:

watertight

adjective

  • 1Closely sealed, fastened, or fitted so that no water enters or passes through.

    ‘a watertight compartment’
    • ‘The watertight seals over structural joints tend to deteriorate over time as the caulking becomes less sticky and dislodges.’
    • ‘The watertight rooms, costing from £500 a night up to £3,000 for a suite, are aimed at wealthy travellers who want a unique holiday experience.’
    • ‘These little guys would be hand-raised by the Penguin Reserve and subsequent surgeries performed to remove scar tissue until the area was healed and watertight.’
    • ‘With little effort, you can bend and solder lead and solder the joints between flashings for a long lasting, watertight seal.’
    • ‘In any event it was designed only to be weathertight not watertight.’
    • ‘This lid is provided with a tool to make removing and reinstalling the lid on the waterblock base simple, while maintaining the watertight seal.’
    • ‘We spent £250,000 on it last year and are looking to move on to the next stage, to make the building watertight.’
    • ‘He said: ‘On top of that, the city council needs to spend close to £200,000 just to make the building watertight.’’
    • ‘Because of the freeze-and-thaw cycle, concrete dikes tend to require annual maintenance to seal cracks and remain watertight.’
    • ‘If left to deteriorate to the point that the lock was not watertight, there would be a serious effect on flood control as it would be impossible to maintain the river level in the Foss.’
    • ‘The heat is oppressive, and you realize it the moment you step through the watertight door onto the weather deck of any ship in the gulf.’
    • ‘In this situation the compartment would have been evacuated and sealed using the watertight bulkhead door to the rear of the torpedo stowage.’
    • ‘Seals and seams are known to be less than watertight, and many divers make do with damp suits rather than drysuits.’
    • ‘The experimental tank was constructed from glass of 1 cm thickness held together with silicone rubber and divided into two equal proportions by a watertight partition.’
    • ‘But how will I live without something watertight underfoot, you ask?’
    • ‘But even watertight concrete is not impermeable to the passage of moisture.’
    • ‘However, the seal proved to be less than watertight.’
    • ‘The wealthier residents are having their houses made thoroughly watertight and are said to be looking forward to seeing some interesting life forms swim by their windows in the near future.’
    • ‘When the sections compress the rubber, this should form a watertight seal.’
    • ‘I quickly ran down the escape pod, and I locked the watertight hatch behind me.’
    waterproof, water-repellent, water-resistant, weatherproof
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  • 2(of an argument or account) unable to be disputed or questioned.

    ‘their alibis are watertight’
    • ‘While mobile phone records can be scoured from here to eternity, anything short of recorded conversations seems unlikely to constitute watertight evidence.’
    • ‘They are having to ensure that their evidence is more watertight than that which would be expected in a court of law.’
    • ‘Merton's arguments are often hypothetical, but the logic is always watertight on closer scrutiny.’
    • ‘Why, he asks, cannot the protagonists accept that their opponents' arguments, even if not entirely watertight, may nevertheless be partly correct?’
    • ‘At least I've finally found a watertight argument against Alec ever moving me to the countryside.’
    • ‘In their attempt at being watertight and perfect, our laws are so wordy that they lose their spirit amongst the letters.’
    • ‘He went on to state that all aspects of anti-social behaviour have to be examined and a case would have to be watertight before the local authority went to court seeking to evict a tenant.’
    • ‘That argument is not watertight, however, because existing law does not formally allow euthanasia, for a variety of reasons mentioned briefly above.’
    • ‘A fully informed, carefully and methodically reasoned, conceptually watertight political argument lies well outside them.’
    • ‘The question is how, considering that both boys have watertight alibis.’
    • ‘But if you are going to claim that Mexican immigrants don't want to be Americans, your argument had better be watertight.’
    • ‘In other instances, some of these learned men and women, devoid of principles, have thought nothing of taking up watertight and indefensible cases just for the money.’
    • ‘Phillip's argument isn't exactly the most watertight.’
    • ‘How watertight do you need these to be, factually?’
    • ‘I've no doubt there all kinds of holes in this logic, and many examples that could suggest these arguments are less than watertight.’
    • ‘Humbugging cynics might wonder if this seasonal tide of volunteers is entirely altruistic or a conveniently watertight excuse for avoiding dysfunctional familial festivities.’
    • ‘But remember, this is entertainment not the Special Theory of Relativity - it doesn't have to be mathematically watertight.’
    • ‘I will lay it on the line - there is not one such fossil for which one could make a watertight argument.’
    • ‘No justification is good enough - or none short of a watertight deductive argument, and all but the sceptics will agree that this is too much to demand.’
    • ‘Fireworks should not be sold to anyone who thinks that loud explosions are actually worth paying money for but I can see that it would be difficult to frame that in a watertight legal manner.’
    indisputable, unquestionable, incontrovertible, undeniable, irrefutable, unassailable, impregnable, beyond dispute, beyond question, beyond doubt, indubitable
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Pronunciation

watertight

/ˈwɔːtətʌɪt/