airtight

adjective

Definition of airtightnext
1
as in watertight

Related Words

Relevance

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
  • At a special fair contest, Iowa pie bakers gave the Pie Lady Louise Piper a fitting farewell.
    — Courtney Crowder, Des Moines Register, 28 Aug. 2026
  • If your stay involves a special occasion, the Teppanyaki show-cooking experience makes for an unforgettable celebration.
    — Condé Nast, Condé Nast Traveler, 28 Aug. 2026
Definition of special
Adjective
  • 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
  • With a leakproof straw lid and easy carry loop, this Hydro Flask water bottle is perfect for staying hydrated while on the go.
    — BestReviews, Chicago Tribune, 19 Aug. 2026
Definition of leakproof
Adjective
  • Low-grade astrocytomas are more common in children, while high-grade astrocytomas, such as glioblastoma, tend to grow and spread within the brain and spinal cord quickly and are more common in adults.
    — Angeline Jane Bernabe, ABC News, 28 Aug. 2026
  • The swivel is made of high-grade metal, and the bag is made with super durable Maya hide leather.
    — BestReviews, Chicago Tribune, 18 Aug. 2026
Definition of high-grade
Adjective
  • Autumn Joy Stonecrop Also called autumn joy sedum, this hardy, summer- and fall-flowering perennial is known for its succulent foliage and dense clusters of tiny pink flowers.
    — Alexandra Jones, The Spruce, 30 Aug. 2026
  • There was less consensus about the dust kicked up from the playa, which can be dense enough to cause whiteouts.
    — Henry Alford, New Yorker, 29 Aug. 2026
Definition of dense
Adjective
  • The more accurate framing is that many of these fees are supplier-imposed and disclosed in booking terms that travelers frequently do not read in full.
    — Matthew Kayser, USA Today, 31 Aug. 2026
  • Maher noted that many of those candidates were heavy favorites to win but agreed that his statement was not accurate.
    — Los Angeles Times, Los Angeles Times, 31 Aug. 2026
Definition of accurate

Browse Nearby Words

air taxis
airtight
airway
See all Nearby Words

Cite this Entry

“Airtight.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/airtight. Accessed 3 Sep. 2026.

Copy Citation
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

A List of Most Commonly Confused Words

Why do we use apostrophes to show possession?

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?
See More

Popular in Wordplay

See More

The Longest Long Words List

Stay Woke

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Even More Bird Names that Sound Like Insults (and Sometimes Are)
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

The Longest Long Words List

Stay Woke
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
skateboard-dog-hat
Wordmaxxing Slang Quiz Give your vocabulary a glow up by getting sendy w...
See All