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
Our dividend portfolios, while better insulated from the tariff volatility than MAG 7 stocks, are not impervious to declines either.
—
Brett Owens, Forbes.com, 10 Apr. 2025
Urban heat islands are areas within cities that are significantly warmer than the surrounding areas, and this is primarily due to the replacement of natural surfaces with impervious materials like pavement and buildings.
—Stephen Underwood, Hartford Courant, 16 June 2025
First, the team looked at the microbiomes of corals that are impervious to SCTLD to try and harvest probiotics from these disease-resistant species.
—Laura Baisas, Popular Science, 5 June 2025
These include the claim that children are virtually impervious to COVID, which has been refuted by the injury and death toll among children.
—Michael Hiltzik, Los Angeles Times, 5 June 2025
See All Example Sentences for impervious
Brett Owens, Forbes.com, 10 Apr. 2025
Urban heat islands are areas within cities that are significantly warmer than the surrounding areas, and this is primarily due to the replacement of natural surfaces with impervious materials like pavement and buildings.
—Stephen Underwood, Hartford Courant, 16 June 2025
First, the team looked at the microbiomes of corals that are impervious to SCTLD to try and harvest probiotics from these disease-resistant species.
—Laura Baisas, Popular Science, 5 June 2025
These include the claim that children are virtually impervious to COVID, which has been refuted by the injury and death toll among children.
—Michael Hiltzik, Los Angeles Times, 5 June 2025
See All Example Sentences for impervious
Recent Examples of Synonyms for impervious
Adjective
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Panda flipped this model, embedding itself directly in the grower network and building tight, regional supply chains.—
Kasi Martin,
Sourcing Journal,
9 July 2025
-
The Moccamaster can hold brewing temperatures within a variance of 4 degrees Celsius and extract coffee within very tight parameters.—
Scott Gilbertson,
Wired News,
9 July 2025
Adjective
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Where the Earth has a dense atmosphere, abundant water and life, Mars is a desiccated, lifeless world where even the prospects of finding fossil bacteria are a long shot.—
New Atlas,
New Atlas,
12 July 2025
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In the photo, the orange-brown tiers represent stardust, while small patches represent seemingly vacant zones that indicate the presence of dense foreground filaments of dust that are home to still-forming stars, astronomers said.—
Julia Jacobo,
ABC News,
11 July 2025
Adjective
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The part of Texas that flooded last week is known as Flash Flood Alley because of its impermeable limestone hills and frequent downpours, but these floods were unusually severe for the area.—
Rebecca Hersher,
NPR,
7 July 2025
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The spongy material is mostly made of air, yet nearly impermeable to both air and liquid.—
Brandee Gruener,
Southern Living,
7 May 2025
Adjective
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Evening operations require a delicate balance: maintaining service standards while preparing for close and keeping everyone safe.—
Elie Y. Katz,
Forbes.com,
10 July 2025
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Typically, the ring bearer is a young boy or girl and is either the couple’s own child, a relative, or a close family friend.—
Shelby Wax,
Vogue,
10 July 2025
Adjective
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Back inside, the primary suite carries on the adobe style with thick, smooth walls and rounded edges.—
Demetrius Simms,
Robb Report,
14 July 2025
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The three-day Tampa conference was thick with criticism of DOJ and disbelief that the president could have let so many people down.—
Shelby Talcott,
semafor.com,
14 July 2025
Adjective
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When selecting a provider, organizations should remember to look for one that offers robust data protection offerings that ensure the storage sets are impenetrable.—
Dave Friend,
Forbes.com,
27 June 2025
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Built inside a mountain some 300 feet underground and reinforced by layers of concrete, the plant, which is the most likely target of a potential American strike, is impenetrable by any bomb except the GBU-57 Massive Ordnance Penetrator (MOP).—
Adeola Adeosun,
MSNBC Newsweek,
21 June 2025
Adjective
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By this point, the road behind him was impassable, too.—
Rachel Monroe,
New Yorker,
11 July 2025
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By that point, according to survivor accounts, many evacuation routes had been impassable for hours.—
Zeynep Tufekci,
Mercury News,
10 July 2025
Adjective
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Seek shelter in a sturdy structure until the storm has passed.—
NC Weather Bot,
Charlotte Observer,
13 July 2025
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Photograph: Kat Merck AmazonBasics Small Packing Cubes for Travel, 4-Piece-Set $20 $14 (30% off) Amazon Not quite as compressive as our top pick, these Amazon Basics cubes offer sturdy mesh windows and durable fabric—a budget-friendly intro to packing cubes.—
Parker Hall,
Wired News,
11 July 2025
Cite this Entry
“Impervious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impervious. Accessed 18 Jul. 2025.
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