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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
  • O’Neill, a physics professor at Princeton, argued for the practical possibility of building human habitats that would float between Earth and the moon, housing tens of thousands of people in hermetic environments with earthlike gravity and climate.
    — Jacob Weisberg, Vanity Fair, 10 Sep. 2026
  • This hermetic secrecy is how Allure beauty director Sarah Kinonen and I recently found ourselves in the bathroom of a suite in the Aman hotel on New York’s Fifth Avenue, brushing our teeth while members of the Dyson public relations team looked on.
    — Jenny Bailly, Allure, 1 Sep. 2026
Definition of hermetic
Adjective
  • His point is that although LLMs, no less than chess engines and other specialist systems, are trained on a specific task—namely, predicting the next word in a text passage—that task is special.
    — George Musser, Scientific American, 17 Sep. 2026
  • Snoop Dogg is set to host the event, and additional performers, presenters and special guests will be revealed over the next week.
    — Steven J. Horowitz, Variety, 16 Sep. 2026
Definition of special
Adjective
  • The real genius is the second lid, which turns the whole thing into a leakproof pitcher.
    — Alaina Chou, Bon Appetit Magazine, 31 Aug. 2026
  • If using cold water for thawing, place chicken in leakproof packaging, submerge, and allow about 30 minutes for every pound.
    — Sheena Chihak, Better Homes & Gardens, 20 Aug. 2026
Definition of leakproof
Adjective
  • Founded in 1998, Mitsuwa Market offers an array of authentic Japanese ingredients, including high-grade rice, miso, seaweed, snacks and condiments.
    — Gagandeep Singh, Sacbee.com, 15 Sep. 2026
  • All the buttons and keys are high-grade and feel great to use.
    — Eric Zeman, PC Magazine, 10 Sep. 2026
Definition of high-grade
Adjective
  • Rings are not always uniform, and JWST might simply have cut through a denser clump.
    — Jacek Krywko, ArsTechnica, 19 Sep. 2026
  • Starting with what is often called the Arab Spring and ending with the Black Lives Matter protests that followed George Floyd’s murder in 2020, the demonstrations—dense, synchronized, and persistent—dwarfed older, briefer moments of global protest.
    — Rachel Nolan, The New York Review of Books, 19 Sep. 2026
Definition of dense
Adjective
  • Still, drugmakers are increasingly homing in on narrower and potentially more accurate drug targets as science reveals more of cancer's remarkable molecular diversity.
    — Arthur Allen, CBS News, 21 Sep. 2026
  • Relevant facts can be included to help create an accurate account.
    — Matthew Kayser, Miami Herald, 21 Sep. 2026
Definition of accurate

Browse Nearby Words

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 23 Sep. 2026.

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