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
Synonyms & Similar Words
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
-
From a tactical standpoint, the fort is unlikely to deter Hezbollah’s new crop of attack drones, which rely on fiber-optic cables and are impervious to jamming.—
Nabih Bulos,
Los Angeles Times,
1 June 2026
-
This proposal involves extremely large impervious surfaces, roofing, pavement, truck courts, loading areas, and supporting infrastructure.—
Sean Krofssik,
Hartford Courant,
27 May 2026
Adjective
-
Starter Eric Lauer battles erratic fastball command and early damage yet completes six innings, while the Rays’ Nick Martinez matches him before a bullpen misstep to Rojas decides a tight opener.—
Liana Handler
Follow,
Los Angeles Times,
16 June 2026
-
Security was tight at Hard Rock Stadium on Monday night at the first of seven World Cup matches in South Florida.—
Al Diaz,
Miami Herald,
16 June 2026
Adjective
-
The videos showed dense crowds waiting in organized lines with little movement.—
Abby Dodge,
CBS News,
17 June 2026
-
This is especially important near rushing water, around blind corners and in dense vegetation where sound and visibility are limited.—
Amber Harding OutKick,
FOXNews.com,
16 June 2026
Adjective
-
Whisk it in until the dressing is rich, thick, and emulsified, which takes less than a minute.—
Victoria Spencer,
Martha Stewart,
13 June 2026
-
With adjustable straps, a thick elastic band, empire waist, and a ruffle trim, this Grace Karin maxi will become the most versatile dress in your closet.—
Stephanie Osmanski,
Better Homes & Gardens,
13 June 2026
Adjective
-
There wasn’t much excitement in the building, despite the fact that the game was close until the end.—
Nick Friedell,
New York Times,
17 June 2026
-
He's remained close with the Solari family and has taken Teo Solari under his wing.—
Ryan Hughes,
CBS News,
17 June 2026
Adjective
-
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
-
For 82 games and three-plus playoff rounds, the bunker remained impenetrable.—
Kristian Winfield,
New York Daily News,
9 June 2026
Adjective
-
The Strait carries roughly a fifth of the world’s oil, and remains largely impassable.—
Garrett Downs,
CNBC,
31 May 2026
-
Fire safety regulations have long required multifamily buildings to contain two or more staircases so that residents can exit their homes safely if one staircase is impassable because of smoke or other reasons.—
Alex Schwartz,
The Conversation,
29 May 2026
Adjective
-
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
-
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 20 Jun. 2026.
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