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
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This layer also contains Earth’s oceanic crust — a thinner and denser layer below the oceans — and the continental crust that sits above this layer.—
Taylor Nicioli,
CNN Money,
18 Apr. 2025
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The good news As solar cycle 25 is set to weaken soon, the high-energy proton soup around the planet will soon get denser again.—
Tereza Pultarova,
Space.com,
17 Apr. 2025
Adjective
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Some regulators might see stablecoins as competition to or complementary with CBDCs, leading to either tighter restrictions or new forms of partnership.—
Zennon Kapron,
Forbes.com,
14 Apr. 2025
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There’s no tighter part of the property for patrons than Amen Corner, tens of thousands pressed together to watch as McIlroy’s ball flew through the air once, then twice.—
Gabby Herzig,
New York Times,
14 Apr. 2025
Adjective
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The effect was to view non-European peoples as constitutionally bound by custom, impervious to progress, and inscrutable to the Western mind.—
Zachariah Mampilly,
Foreign Affairs,
1 Apr. 2025
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But these concepts are not, on their own, impervious to challenge.—
Michael Peregrine,
Chicago Tribune,
14 Mar. 2025
Adjective
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Twangy bass lines thick enough to saw down a redwood tree are shredded with shivers of electric guitar to create a blues sound that cuts a hole straight through the decades.—
David Ehrlich,
IndieWire,
10 Apr. 2025
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This beautiful Easter garland, on sale for $79.99 at Wayfair, is opulent and thick with twigs and pastel eggs that run throughout.—
Nora Colomer,
FOXNews.com,
10 Apr. 2025
Adjective
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Even more impressively, against a Colorado defense that was impenetrable Saturday, with the Rays lacing the balls all over the field and the Rockies making a reel of highlight plays.—
Marc Topkin,
The Orlando Sentinel,
30 Mar. 2025
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The difficult terrain, impenetrable vegetation, and challenging navigation mean most hikers cover at least 50 percent more distance than that.—
Alex Hutchinson,
Outside Online,
25 Mar. 2025
Adjective
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The storms rendered some roads impassable, damaged buildings and knocked out power to hundreds of thousands of homes and businesses.—
Joe Hernandez,
NPR,
17 Feb. 2025
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In Southern California, intense rainfall triggered large debris flows, making several streets impassable, including Mulholland Drive in Santa Monica and several roads in the Palisades.—
Josh Hammer,
Newsweek,
15 Feb. 2025
Adjective
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And Amanda Marsalis and April Blair are some of my closest friends now.—
Jessica Radloff,
Glamour,
17 Apr. 2025
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The new Charlotte Knights’ manager pitched for four MLB teams from 2010 to 2015, recording 30 saves as the closer for the Chicago White Sox in 2011.—
Shane Connuck,
Charlotte Observer,
17 Apr. 2025
Adjective
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It’s built from a sturdy metal base with a solid wood and plywood frame and has a swivel design that rotates 360 degrees.—
Megan Schaltegger,
People.com,
9 Apr. 2025
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In addition to the missing sturdy bollards, which were under repair, the city’s portable steel barriers were in the down position during New Year’s celebrations, CNN previously reported.—
Emma Tucker,
CNN Money,
8 Apr. 2025
Cite this Entry
“Impermeable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impermeable. Accessed 22 Apr. 2025.
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