1
as in dense
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
It was given a raffia twist at both Longchamp and Sandro — there in a black-and-white striped version — as well as the impermeable and big-brimmed update at Aigle.
—
Rhonda Richford, WWD, 4 Oct. 2024
In Israel, the seal Coates creates around his own mind becomes impermeable.
—Daniel Bergner, The Atlantic, 24 Sep. 2024
This has partly been attributed to rapid urban development, which has created sprawl that encases floodplains in impermeable concrete.
—Christy Choi, CNN, 13 Aug. 2024
City officials are proposing a parcel tax of 7 cents per square foot of impermeable or paved-over property — far more than the 2.5 cents per square foot that Los Angeles County charges.
—David Garrick, San Diego Union-Tribune, 6 June 2024
See all Example Sentences for impermeable 
Rhonda Richford, WWD, 4 Oct. 2024
In Israel, the seal Coates creates around his own mind becomes impermeable.
—Daniel Bergner, The Atlantic, 24 Sep. 2024
This has partly been attributed to rapid urban development, which has created sprawl that encases floodplains in impermeable concrete.
—Christy Choi, CNN, 13 Aug. 2024
City officials are proposing a parcel tax of 7 cents per square foot of impermeable or paved-over property — far more than the 2.5 cents per square foot that Los Angeles County charges.
—David Garrick, San Diego Union-Tribune, 6 June 2024
See all Example Sentences for impermeable
Recent Examples of Synonyms for impermeable
Adjective
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The combination of environmental regulations protecting chaparral, combined with the dense residential areas near it, mean that prescribed fire is very infrequently used in Southern California.—
Ella Nilsen,
CNN,
24 Jan. 2025
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The village is small and dense, lined with crumbling structures and the exploded remains of cars.—
Matt Donnelly,
Variety,
24 Jan. 2025
Adjective
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The team has introduced a new front-suspension design to try and make its car faster in tighter, slower turns.—
Alex Kalinauckas,
New York Times,
22 Jan. 2025
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Even if this shirt came in only one color, managing editor Erin Agostinelli would still love it with its stretchy body-hugging tight fit that's almost like wearing a bodysuit but without the commitment.—
Emily Hochberg,
Travel + Leisure,
22 Jan. 2025
Adjective
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The film is the studio’s best hope at fielding a billion-dollar blockbuster in 2025, but even the Man of Steel isn’t impervious to box office Kryptonite.—
Rebecca Rubin,
Variety,
17 Jan. 2025
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Anti-immigration narratives are impervious to facts.—
Dan Gooding,
Newsweek,
8 Jan. 2025
Adjective
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Dogs with thick, double-layered coats tend to be more resistant to cold, while dogs with thin coats are more susceptible to cold, according to PetMD.—
Jenna Prestininzi,
USA TODAY,
28 Jan. 2025
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Clad in a thick fur coat, Alaskan sled-dog musher Gunnar Kaasen stood next to the hero of the moment: Balto, a Siberian husky who’d helped deliver medicine across a frozen frontier to halt a deadly epidemic.—
David Kindy,
Smithsonian Magazine,
28 Jan. 2025
Adjective
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Studying Trump’s image-making is, for better or worse, one of the few windows into the worldview of an otherwise impenetrable figure.—
Leah Dolan,
CNN,
18 Jan. 2025
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Special run-flat tires, a new thing at the time, finish off the impenetrable visage.—
Josh Max,
Forbes,
17 Jan. 2025
Adjective
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These conditions could lead to treacherous travel, with roads becoming impassable in hilly or mountainous areas.—
Hannah Parry,
Newsweek,
7 Jan. 2025
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Thicker layers of ice can cause power outages and make roads impassable.—
Mansee Khurana,
NPR,
4 Jan. 2025
Adjective
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Sophie’s own child, Aud Mason-Hyde, is one of the main actors, which adds another layer of things as a close personal story.—
Dan Allen,
NBC News,
24 Jan. 2025
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Dustin Pedroia earned enough Hall of Fame votes to stay on the ballot for a second year, but how close was the Boston Red Sox legend to earning enshrinement?—
Raul A. Reyes,
Newsweek,
23 Jan. 2025
Adjective
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Loftin Hall itself, the former student dining hall where the museum is housed, is noteworthy on its own, with beautiful Mexican tiles and sturdy wooden beams.—
Pam LeBlanc,
Southern Living,
26 Jan. 2025
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The insulation will keep you warm in below-zero temperatures, while the sturdy rubber soles will prevent you from slipping and sliding on icy terrain.—
Genevieve Cepeda,
Travel + Leisure,
26 Jan. 2025
Thesaurus Entries Near impermeable
Cite this Entry
“Impermeable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impermeable. Accessed 1 Feb. 2025.
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