1
as in impervious
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
Oil and gas infuse the pores of sandstone; layers of impermeable caprock trap it inside.
—
Jeffrey Marlow, New Yorker, 5 Apr. 2026
Armed with fabulous ensembles and accessories, as well as her quick wit, Maxine attempts to cross that impermeable line between the haves and the have-nots.
—Rosy Cordero, Deadline, 2 Mar. 2026
My father’s 1930s interviews tell stories of couples who defied Chicago’s seemingly impermeable color line.
—Dorothy Roberts, Time, 13 Feb. 2026
Driveway materials can be impermeable or permeable—so traditional concrete and asphalt, or a pervious solution that allows rainwater to pass through.
—Alexandra Kelly, Martha Stewart, 9 Feb. 2026
See All Example Sentences for impermeable
Jeffrey Marlow, New Yorker, 5 Apr. 2026
Armed with fabulous ensembles and accessories, as well as her quick wit, Maxine attempts to cross that impermeable line between the haves and the have-nots.
—Rosy Cordero, Deadline, 2 Mar. 2026
My father’s 1930s interviews tell stories of couples who defied Chicago’s seemingly impermeable color line.
—Dorothy Roberts, Time, 13 Feb. 2026
Driveway materials can be impermeable or permeable—so traditional concrete and asphalt, or a pervious solution that allows rainwater to pass through.
—Alexandra Kelly, Martha Stewart, 9 Feb. 2026
See All Example Sentences for impermeable
Recent Examples of Synonyms for impermeable
Adjective
-
Very much on the plus side, the output can't smudge, doesn't scratch easily, is almost impossible to tear, and is virtually impervious to water, so high scores for survivability.—
M. David Stone,
PC Magazine,
19 June 2026
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Waterproof materials are impervious to water, providing a complete barrier, while water-resistant materials only resist water penetration to a certain degree before the water seeps through.—
Sophie Flaxman,
Better Homes & Gardens,
17 June 2026
Adjective
-
Contrary to what those face-washing commercials from our childhood led us to believe, your skin doesn't need to feel tight or squeaky-clean after cleansing.—
Christa Joanna Lee,
Allure,
24 June 2026
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That was a fantastic finish into a tight window.—
Monica Alba,
NBC news,
24 June 2026
Adjective
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More memory, denser racks, faster deployment The new server promises 50 percent more memory per socket and more GPU memory compared to the previous generation.—
Atharva Gosavi,
Interesting Engineering,
23 June 2026
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For ultimate comfort, the loveseat and chairs also include dense foam cushions wrapped in smooth polyester.—
Alicia Geigel,
Southern Living,
23 June 2026
Adjective
-
The fire initially grew into a huge inferno, creating a pillar of thick, black smoke that could be seen for miles.—
Los Angeles Times,
Los Angeles Times,
20 June 2026
-
That thick, ugly vein, the shrimp feeling, was gone.—
Sarah Miller,
New Yorker,
20 June 2026
Adjective
-
With the wrap in front of you, fold up the edge closest to you.—
Gretchen McKay,
Boston Herald,
24 June 2026
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Because wells in the region are large and close to one another, restarting production will require significant coordination across companies and countries to ensure consistent pressure across multiple wells.—
David Goldman,
CNN Money,
24 June 2026
Adjective
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The Shiatsung Project In a bungalow surrounded by an impenetrable wall, a woman has been raised in isolation by a talking screen mounted on the living room wall, fullfilling her every wish without ever revealing the reasons for its life and existence.—
Kevin Giraud,
Variety,
18 June 2026
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For 82 games and three-plus playoff rounds, the bunker remained impenetrable.—
Kristian Winfield,
New York Daily News,
9 June 2026
Adjective
-
South of there, at Kessler Air Force Base, several roads became impassible.—
Kenton Gewecke,
ABC News,
16 June 2026
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Floodwaters in Waco left roads on Interstate 35 impassable and stranded drivers in their vehicles, prompting numerous search-and-rescue responses early Monday, June 15, Texas Game Wardens said.—
Natassia Paloma,
USA Today,
15 June 2026
Adjective
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On that occasion a team made up of players who had all been born in Haiti shocked an Italy team famed for its impregnable defense.—
Laurent Dubois,
The Conversation,
10 June 2026
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The multiple attacks could be a major victory for the jihadis in a city seen as impregnable, despite attackers often targeting troops and villages on the outskirts of the city.—
Haruna Umar,
Los Angeles Times,
17 Mar. 2026
Cite this Entry
“Impermeable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impermeable. Accessed 24 Jun. 2026.
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