1
as in tight
not allowing penetration (as by gas, liquid, or light)
the material for this coat is supposed to be impervious to rain
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in dense
impossible to get through or into
the rain forest is impervious to all but the most dedicated explorers
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of impervious
This compulsion was absolutely impervious to my will, and part of the problem was just the availability.
—
Charles Trepany, USA Today, 6 Aug. 2025
The proposal also would impose restrictions on impervious surfaces that allow little or no stormwater infiltration into the ground, like pavement and parking lots.
—Austin Hornbostel, Nashville Tennessean, 5 Aug. 2025
Because optical fiber is impervious to electromagnetic interference, automakers are free to route cables through tight spaces.
—IEEE Spectrum, 21 July 2025
The city’s existing rules address tree protection, drainage and impervious surface limits.
—Riya Sharma, Sun Sentinel, 2 July 2025
See All Example Sentences for impervious
Charles Trepany, USA Today, 6 Aug. 2025
The proposal also would impose restrictions on impervious surfaces that allow little or no stormwater infiltration into the ground, like pavement and parking lots.
—Austin Hornbostel, Nashville Tennessean, 5 Aug. 2025
Because optical fiber is impervious to electromagnetic interference, automakers are free to route cables through tight spaces.
—IEEE Spectrum, 21 July 2025
The city’s existing rules address tree protection, drainage and impervious surface limits.
—Riya Sharma, Sun Sentinel, 2 July 2025
See All Example Sentences for impervious
Recent Examples of Synonyms for impervious
Adjective
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Credit spreads are at their tightest in about 20 years, meaning there is little difference in yields between corporate bonds compared to government bonds.—
Sasha Rogelberg,
Fortune,
12 Sep. 2025
-
The project, created under tight deadlines and with hobby-grade parts, is now on track for wider military use.—
Kapil Kajal,
Interesting Engineering,
12 Sep. 2025
Adjective
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This happens when its dense stellar corpse is close enough to its companion star to allow its gravity to begin stripping away the partner's stellar material.—
Robert Lea,
Space.com,
16 Sep. 2025
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The resulting configuration provides much denser storage than conventional all flash parallel file systems.—
Thomas Coughlin,
Forbes.com,
16 Sep. 2025
Adjective
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Rainfall would pool on the impermeable ground.—
Mrigakshi Dixit,
Interesting Engineering,
18 Aug. 2025
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But simply piling mounds of topsoil on top of hard clay ground can result in an impermeable layer, both to water and roots.—
Andy Wilcox,
Better Homes & Gardens,
7 Aug. 2025
Adjective
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He was acquired, along with closer Victor Vodnik, in a July 2023 trade with the Braves for reliever Pierce Johnson.—
Patrick Saunders,
Denver Post,
17 Sep. 2025
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In the last fortnight alone, Starmer's Deputy Prime Minister and close ally Angela Rayner has resigned after a house tax scandal, triggering a major cabinet reshuffle.—
Holly Ellyatt,
CNBC,
17 Sep. 2025
Adjective
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The polished sateen set boasts a thick border in six color combinations to wake up a bedroom.—
Nashia Baker,
Architectural Digest,
10 Sep. 2025
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To serve, top with thick, creamy Greek yogurt and vibrant fruits of choice, like raspberries, mangoes and blueberries.—
The New York Times News Service Syndicate,
San Diego Union-Tribune,
10 Sep. 2025
Adjective
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Beyond that, however, pollen’s seemingly impenetrable shell—made up of the biopolymer sporopollenin—had long stumped researchers and limited its use.—
Sandy Ong,
JSTOR Daily,
11 Sep. 2025
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With time, trees even grew in the impenetrable ditch.—
Steven Franck,
San Diego Union-Tribune,
9 Sep. 2025
Adjective
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As dozens would discover over the ensuing centuries, the Arctic Ocean is impassable for most of the year.—
Robin Catalano,
AFAR Media,
15 Sep. 2025
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Or does the game offer alternative options for getting around what might be impassable progression walls?—
ArsTechnica,
ArsTechnica,
11 Sep. 2025
Adjective
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Fall sowing encourages sturdy plants and earlier blooms, which can be quite beneficial in hot Southern climes.—
Kim Toscano,
Southern Living,
15 Sep. 2025
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The sturdy plastic housings resist fading and cracking and are brown in color to blend with most outdoor surfaces.—
Miles Walls,
Better Homes & Gardens,
15 Sep. 2025
Cite this Entry
“Impervious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impervious. Accessed 18 Sep. 2025.
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