1
as in dense
impossible to get through or into
the wall of security people surrounding the rock band was impermeable
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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
Surface treatments can help make paper—which naturally sops up moisture from the air that could affect the device built on top—relatively impermeable.
—
IEEE Spectrum, 29 Jan. 2013
Pepe has been Portugal’s bedrock for almost two decades, a scratching, impermeable presence who won 141 caps for his country, and was central to their first major trophy at Euro 2016.
—Jacob Whitehead, The Athletic, 8 Aug. 2024
Clay deposits, forming an impermeable layer, result in waterlogged soil.
—David Bressan, Forbes, 31 Oct. 2024
There is a retention pond to capture heavy rain, minimum impermeable surfaces, and any runoff is directed to trees and plants.
—Jennifer Castenson, Forbes, 22 Oct. 2024
See All Example Sentences for impermeable
IEEE Spectrum, 29 Jan. 2013
Pepe has been Portugal’s bedrock for almost two decades, a scratching, impermeable presence who won 141 caps for his country, and was central to their first major trophy at Euro 2016.
—Jacob Whitehead, The Athletic, 8 Aug. 2024
Clay deposits, forming an impermeable layer, result in waterlogged soil.
—David Bressan, Forbes, 31 Oct. 2024
There is a retention pond to capture heavy rain, minimum impermeable surfaces, and any runoff is directed to trees and plants.
—Jennifer Castenson, Forbes, 22 Oct. 2024
See All Example Sentences for impermeable
Recent Examples of Synonyms for impermeable
Adjective
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Select plants with dense habits and thick cover to outcompete weeds that germinate in these border plantings.—
Kim Toscano,
Southern Living,
5 Apr. 2025
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The dense haze of Viceroys is established and commented upon early, then is discreetly reduced.—
Frank Rizzo,
Variety,
4 Apr. 2025
Adjective
-
This wood is chosen for its tight grain and natural flavor compounds, such as lignin and tannins.—
Emily Price,
Forbes.com,
4 Apr. 2025
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The following are the three main types to choose from: Small cat trees are affordable and ideal for tight living quarters.—
BestReviews,
Mercury News,
4 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 this isn’t a self-help column, or a prescription for better (or impervious) living.—
Anita Chabria,
Los Angeles Times,
29 Dec. 2024
Adjective
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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
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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
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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So many roads across Kentucky were impassable due to flooding over the weekend that the state ran out of road-closing barriers, the Hardin County sheriff said.—
Mary Gilbert,
CNN Money,
7 Apr. 2025
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Hundreds of Kentucky roads across the state were impassable because of floodwaters, downed trees or mud and rock slides.—
Bruce Schreiner and Obed Lamy,
Los Angeles Times,
6 Apr. 2025
Adjective
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There are several international destinations where pickpocketing is extremely common, so having all of my essentials close is a priority.—
Jordyn Burrell,
Travel + Leisure,
6 Apr. 2025
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The six-point halftime margin would be the closest Boise State would be to Nebraska for the rest of the game.—
Shaun Goodwin,
Idaho Statesman,
5 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 16 Apr. 2025.
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