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
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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
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Recent Examples of impervious
Surface water flooding is especially dangerous for cities with a high proportion of impervious soil coverage and hard surfaces—such as roads and parking lots—that prevent rainwater from being absorbed, increasing the likelihood and impact of flooding.
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Natalie Donback, TIME, 18 Dec. 2024
The road project itself would mean more stormwater runoff because of additional impervious surfaces, but Wayne said the tunnel project is expected to reduce the stormwater discharge to the combined sewage system by 82%.
—Eric D. Lawrence, Detroit Free Press, 7 Nov. 2024
Antimicrobial resistance is increasing humanity’s risk of being confronted with pathogens impervious to lifesaving medical tools, undermining the effectiveness of antibiotics and HIV, TB and malaria treatments and jeopardizing billions of lives.
—Peter Sands, Forbes, 20 Sep. 2024
Like how a family typically has a head of the household with final decision-making power, leaders seeking to emulate this environment may feel impervious to dissent.
—Kate Wieczorek, Forbes, 30 Oct. 2024
See all Example Sentences for impervious 
Natalie Donback, TIME, 18 Dec. 2024
The road project itself would mean more stormwater runoff because of additional impervious surfaces, but Wayne said the tunnel project is expected to reduce the stormwater discharge to the combined sewage system by 82%.
—Eric D. Lawrence, Detroit Free Press, 7 Nov. 2024
Antimicrobial resistance is increasing humanity’s risk of being confronted with pathogens impervious to lifesaving medical tools, undermining the effectiveness of antibiotics and HIV, TB and malaria treatments and jeopardizing billions of lives.
—Peter Sands, Forbes, 20 Sep. 2024
Like how a family typically has a head of the household with final decision-making power, leaders seeking to emulate this environment may feel impervious to dissent.
—Kate Wieczorek, Forbes, 30 Oct. 2024
See all Example Sentences for impervious
Recent Examples of Synonyms for impervious
Adjective
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Steichen’s tight lips, Zaire Franklin’s podcast and an anonymous Colts player who voiced his frustrations to the media.James Boyd, The Athletic, 10 Jan. 2025
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Her blond tresses were pulled back into a tight bun held together by a large clip.Julia Teti, WWD, 10 Jan. 2025
Adjective
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Granted much of that California acreage is uninhabited forest as distinct from a dense, mostly wooden city filled with new immigrants, but that’s still eight times the size, a bigger area than than occupied by Manhattan.The Editorial Board, Chicago Tribune, 12 Jan. 2025
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There’s also the simple fact that much of the densest forest is on terrain so steep that loggers’ machines couldn’t even access it.Elizabeth Miller, Outside Online, 12 Jan. 2025
Adjective
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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
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Clay deposits, forming an impermeable layer, result in waterlogged soil.David Bressan, Forbes, 31 Oct. 2024
Adjective
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Advertisement President Biden, who has a close relationship with Newsom, has pledged that the federal government will cover 100% of disaster assistance costs to California for the next 180 days.Julia Wick, Los Angeles Times, 12 Jan. 2025
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Top Canadian government officials say Trump's comments that Canada should become the 51st state are no longer a joke and are meant to undermine America's closest ally.ROB GILLIES THE ASSOCIATED PRESS, arkansasonline.com, 11 Jan. 2025
Adjective
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Electric motors are dense hunks of metal, thus are heavy; power cables thick enough to carry the heavy electron flow needed to generate hundreds of horsepower are also not light.Will Sabel Courtney, Robb Report, 16 Jan. 2025
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Turn the heat to medium-low, add the grits and cook, stirring frequently, until thick, creamy, and tender, 15–20 minutes.Ryan McCarthy, Saveur, 16 Jan. 2025
Adjective
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Dylan is simply a force of nature, bobbing on the impenetrable currents of his personal muse.Scott Phillips, Forbes, 10 Dec. 2024
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Alexis Lafrenière gathered the rebound and put it past the previously impenetrable Dustin Wolf.Peter Baugh, The Athletic, 21 Nov. 2024
Adjective
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If nearby roads become impassable, the mission has its own plow.Eric Adler, Kansas City Star, 3 Jan. 2025
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The Salt River and Wyoming Ranges, along with the Western Wind River Mountains, are set to see 6-12 inches of snow, with some areas exceeding a foot and gusts of 50 mph making mountain passes like Salt River and South Pass nearly impassable.Raja Krishnamoorthi, Newsweek, 15 Dec. 2024
Adjective
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Rows of sturdy two- and three-story flats stand at attention on countless streets.Daniel Immerwahr, The New Yorker, 14 Jan. 2025
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During renovation work, the men’s first team have been moved into the women’s building, with the women housed in a temporary — but sturdy — portable cabin, and the Graduate Lounge has been turned into the academy and women’s teams’ canteen.Charlotte Harpur, The Athletic, 13 Jan. 2025
Thesaurus Entries Near impervious
Cite this Entry
“Impervious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impervious. Accessed 20 Jan. 2025.
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