airtight

adjective

Definition of airtightnext
1
as in watertight

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Dissimilar Words
2
as in bulletproof

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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 The 1984 Olympics had a relatively airtight contract that protected taxpayers, but that’s not the case this time. — Susan Shelley, Daily News, 18 Feb. 2026 But the United States' employment verification scheme is hardly airtight. — Edward Alden, Foreign Affairs, 11 Feb. 2013 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 If De La Cruz is better to his left because Hayes is on his right, the infield should be relatively airtight with second baseman Matt McLain and Spencer Steer, who has quickly become an exceptional defensive first baseman. — C. Trent Rosecrans, New York Times, 31 July 2025 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
  • 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
  • Flooding concerns were also addressed, with the company explaining that its tunnels are designed to be watertight.
    — Hadley Hitson, Nashville Tennessean, 29 Sep. 2025
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
  • The Kelce brothers have a special royal guest joining their podcast before the Swift wedding extravaganza.
    — Bryan West, USA Today, 4 July 2026
  • Back in December 2023, Travis opened up about receiving a special gift from his new brother-in-law, who was dressed as Santa.
    — Ashlyn Robinette, PEOPLE, 4 July 2026
Definition of special
Adjective
  • Each leakproof food storage container and bowl in this 24-piece set comes with an airtight lid and is made from BPA-free glass.
    — Stephanie Osmanski, Better Homes & Gardens, 25 June 2026
  • This version also comes with a straw cap, which, when closed, is leakproof and shatter-resistant.
    — Lydia Mansel, Travel + Leisure, 16 June 2026
Definition of leakproof
Adjective
  • Scientists at the Korea Institute of Geoscience and Mineral Resources (KIGAM) have devised a technique to turn still-wet coffee grounds into high-grade biofuel in as little as 90 seconds.
    — New Atlas, New Atlas, 1 July 2026
  • Sunshine is restarting Idaho’s storied, high-grade Sunshine silver mine.
    — Michael Bloom, CNBC, 29 June 2026
Definition of high-grade
Adjective
  • Videos of the pyrotechnics display show the pitch filling with tall showers of sparks and dense smoke as dozens of fireworks launched upward.
    — Melissa Gomez, Los Angeles Times, 5 July 2026
  • The rare Saturday night game at the iconic North Side ballpark started an hour late due to rain, then fog billowed in from the north starting in the second inning and got denser.
    — ABC News, ABC News, 4 July 2026
Definition of dense
Adjective
  • Prices were accurate at the time of publication but may change.
    — Charlie Carballo, USA Today, 7 July 2026
  • ISPs would be well within their rights to advertise accurate monthly prices and charge those exact prices on monthly bills.
    — Jon Brodkin, ArsTechnica, 6 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 8 Jul. 2026.

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More from Merriam-Webster on airtight

Nglish: Translation of airtight for Spanish Speakers

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