1
as in dense
impossible to get through or into
the wall of security people surrounding the rock band was impermeable
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in tight
not allowing penetration (as by gas, liquid, or light)
an impermeable seal on the ancient tomb had preserved the artifacts exceptionally well
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of impermeable
Strong metal clamps replicate the design of the polymer hinges on regular Pelican cases, squeezing the case shut on the gasket to create an impermeable seal.
—
Wes Siler, Outside Online, 26 Mar. 2025
Taxing cruise ships with foreign flags seems like a simple concept, like building an impermeable border wall.
—Roger Dooley, Forbes, 22 Feb. 2025
Much of the Floridan Aquifer is shielded significantly from downward migration of pollution by overlying layers of dense, impermeable clay.
—Kevin Spear, Orlando Sentinel, 28 Feb. 2025
Clay deposits, forming an impermeable layer, result in waterlogged soil.
—David Bressan, Forbes, 31 Oct. 2024
See All Example Sentences for impermeable
Wes Siler, Outside Online, 26 Mar. 2025
Taxing cruise ships with foreign flags seems like a simple concept, like building an impermeable border wall.
—Roger Dooley, Forbes, 22 Feb. 2025
Much of the Floridan Aquifer is shielded significantly from downward migration of pollution by overlying layers of dense, impermeable clay.
—Kevin Spear, Orlando Sentinel, 28 Feb. 2025
Clay deposits, forming an impermeable layer, result in waterlogged soil.
—David Bressan, Forbes, 31 Oct. 2024
See All Example Sentences for impermeable
Recent Examples of Synonyms for impermeable
Adjective
-
The company still relies on carriers for a portion of its deliveries, including the U.S. Postal Service, which is traditionally relied on for shipments to costlier and less dense rural areas.—
Annie Palmer,
CNBC,
30 Apr. 2025
-
But liquid water is, unusually, denser than its solid icy form.—
Robin George Andrews,
Quanta Magazine,
25 Apr. 2025
Adjective
-
Most engines with two banks of cylinders have a V angle of 60 or perhaps 90 degrees; with a V angle of just 15 degrees, the VR6 engine was able to fit in the tight confines of the Golf's engine bay.—
ArsTechnica,
ArsTechnica,
28 Apr. 2025
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Size of fines ‘big and scary’ Stephen Shepard, executive vice president of the Denver Metro Building Owners and Managers Association, said the city’s timelines were too tight and the fines too heavy.—
Noelle Phillips,
Denver Post,
28 Apr. 2025
Adjective
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This change alone reduced impervious surfaces by over 125,000 square feet, significantly decreasing runoff and improving stormwater management.—
Marshall Shepherd,
Forbes.com,
28 Apr. 2025
-
That includes the Harambee neighborhood, which has a lack of trees and lots of impervious surfaces, Goray said.—
Madeline Heim,
USA Today,
23 Apr. 2025
Adjective
-
That model, nicknamed iPhone 17 Air, will be super-slim, as little as 5.5mm thick.—
David Phelan,
Forbes.com,
3 May 2025
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The material is also thick enough to feel supportive but lightweight enough to wear year-round.—
Susan Brickell,
Travel + Leisure,
3 May 2025
Adjective
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There are also many systems to contend with that can be slightly impenetrable for newcomers.—
Christopher Cruz,
Rolling Stone,
21 Apr. 2025
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Most of those minerals are currently buried beneath thick sheets of previously impenetrable ice.—
Mack DeGeurin,
Popular Science,
10 Apr. 2025
Adjective
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Heavy snow and high winds could lead to whiteout conditions, making roads impassable in some areas, the NWS has warned.—
Josh Hammer,
Newsweek,
19 Mar. 2025
-
The fleeing bear apparently had come to the foot of one of those vertical lava cliffs that make the walls of these canyons straight-sided and impassable in places.—
Frank C. Hibben,
Outdoor Life,
13 Feb. 2025
Adjective
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Melania Trump wears black veil to Pope Francis' funeral as President Trump dons blue suit As the president's second term in office passes the 100-day mark, here is a closer look at the first lady's lookbook.—
Jay Stahl,
USA Today,
30 Apr. 2025
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His close alignment with Trump has damaged his tech company brands, and despite being one of the most proactive members of the president's team, his job approval rating has been ranked as even lower than Trump's.—
Mohammed Soliman,
MSNBC Newsweek,
29 Apr. 2025
Adjective
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Best Minimalist Pick: Kuru Flex Via Kuru may specialize in sturdy, supportive shoes—but that doesn’t mean all of its pairs feel clunky.—
Sara Coughlin,
SELF,
1 May 2025
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It’s also loaded with features like USB passthrough and a sturdy wrist rest.—
Shubham Yewale,
PC Magazine,
1 May 2025
Cite this Entry
“Impermeable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impermeable. Accessed 10 May. 2025.
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