airtight

adjective

Definition of airtightnext
1
as in watertight

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Dissimilar Words
2
as in bulletproof

Related Words

Dissimilar Words

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of airtight Natural corks, while not entirely airtight, typically allow only a minimal amount of oxygen to enter over time. — Roger Dooley, Forbes, 12 Dec. 2024 These passed our leak test, but our avocado browned quite a bit overnight, suggesting that these containers aren’t entirely airtight. — Lizzy Briskin, Peoplemag, 9 Sep. 2024 Their defense is hardly airtight, but the schedule — the full schedule, not just the conference lineup — is largely devoid of teams capable of slowing the Cowboys’ attack. — Jon Wilner, The Mercury News, 15 May 2024 But the United States' employment verification scheme is hardly airtight. — Edward Alden, Foreign Affairs, 11 Feb. 2013 See All Example Sentences for airtight
Recent Examples of Synonyms for airtight
  1. watertight
  2. bulletproof
  3. hermetic
  4. special
  5. leakproof
  6. high-grade
  7. dense
  8. accurate
Adjective
  • For now, access appears limited to the steadily expanding group of organizations granted access to Claude Mythos Preview through Anthropic’s — not entirely watertight — private Project Glasswing initiative.
    — Robert Hart, The Verge, 9 June 2026
  • Tunnels are also not truly watertight, requiring drainage measures like sump pumps and creating maintenance and reliability issues, the group advised.
    — Skyler Swisher, The Orlando Sentinel, 15 Feb. 2026
Definition of watertight
Adjective
  • The Spurs are almost as bulletproof as Oklahoma City on that end of the floor, but the Thunder have a bit more versatility and are more seasoned.
    — James L. Edwards III, New York Times, 27 May 2026
  • Later grants were used to install bulletproof glass around a playground near the street, as well as bulletproof glass in other classroom windows.
    — Jeff McDonald, San Diego Union-Tribune, 25 May 2026
Definition of bulletproof
Adjective
  • The opening moments of this penultimate episode evoke enough genuine idealism and hope to feel like a rare breath of fresh air, holding the hermetic nastiness of the series in sharp relief.
    — Scott Tobias, Vulture, 17 May 2026
  • The idea was first proposed by Cicero and lived on through the hermetic tradition.
    — Literary Hub, Literary Hub, 13 May 2026
Definition of hermetic
Adjective
  • Panelists warned about a future where Christian nationalists subvert democratic systems in order to achieve a larger goal of garnering special power and privilege for Christians.
    — Lauren Costantino, Miami Herald, 18 July 2026
  • Burnham received support from 349 out of 401 Labour Party lawmakers, and was announced Labour leader at a special party conference on Friday.
    — ABC News, ABC News, 18 July 2026
Definition of special
Adjective
  • Each container comes with a leakproof, airtight, and BPA-free plastic lid that is safe for use in the microwave, dishwasher, and freezer, so each one is easy to use and clean.
    — Alicia Geigel, Southern Living, 14 July 2026
  • Instead, they should be placed in a leakproof container filled with alcohol to kill them, and a doctor should be contacted to safely remove the remaining maggots.
    — Shiv Sudhakar, FOXNews.com, 14 July 2026
Definition of leakproof
Adjective
  • Danagoulian also suggests that high-grade radiation hardening could improve satellites' chances of surviving a nuclear winter in space.
    — Tereza Pultarova, Space.com, 8 July 2026
  • And that’s a relief on a seven-figure motor car made largely of extremely expensive, high-grade carbon fiber.
    — Jason Barlow, Robb Report, 7 July 2026
Definition of high-grade
Adjective
  • At the same time, the bath shouldn’t be tucked so deeply into dense landscaping that predators can hide nearby.
    — Jessica Safavimehr, Southern Living, 18 July 2026
  • With consistent use, many people also notice that regrowing hair becomes finer and less dense, making epilators an appealing alternative for anyone looking to stretch the time between hair removal sessions.
    — Iman Balagam, Vogue, 17 July 2026
Definition of dense
Adjective
  • In the years since, Becenti said, the data has painted a more accurate and encouraging picture.
    — Savannah Peters, Fortune, 13 July 2026
  • The age range was chosen because accurate readings on these topics are harder with older kids.
    — Whitney Friedlander, Los Angeles Times, 13 July 2026
Definition of accurate

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air taxis
airtight
airway
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Cite this Entry

“Airtight.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/airtight. Accessed 20 Jul. 2026.

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More from Merriam-Webster on airtight

Nglish: Translation of airtight for Spanish Speakers

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