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
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of impermeable
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
The impermeable seed coat strategy generally helps survival of the species by making sure all of a season’s crop don’t germinate in the same year.
—Paul Cappiello, Louisville Courier Journal, 21 Nov. 2025
See All Example Sentences for impermeable
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
The impermeable seed coat strategy generally helps survival of the species by making sure all of a season’s crop don’t germinate in the same year.
—Paul Cappiello, Louisville Courier Journal, 21 Nov. 2025
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
-
The 7th Assembly District produced one of the region’s tightest races.—
Evelyn Ronan,
Sacbee.com,
10 June 2026
-
Pelvic floor disorders can occur when these muscles and tissues are too weak or too tight or don’t facilitate the proper functioning of these organs for other reasons.—
Stacey Colino,
Time,
9 June 2026
Adjective
-
Whether Tuchel will, in fact, be able to produce a more intense high-pressing style this summer, given the climate and the dense schedule, is another matter.—
Jack Pitt-Brooke,
New York Times,
10 June 2026
-
Visitors of historic New Castle are greeted with cobblestone streets, alleys, dense urbanism and a rich history that can only be found in a few other cities in the region.—
USA TODAY Network,
USA Today,
10 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
-
Villegas was projected as the second candidate to advance on Tuesday, a week after the election, after a close contest.—
Caitlin Yilek,
CBS News,
10 June 2026
-
There is still just something about being part of the mood of the whole nation, and being up that close to see it, that is really cool.—
Jack Pitt-Brooke,
New York Times,
10 June 2026
Adjective
-
For 82 games and three-plus playoff rounds, the bunker remained impenetrable.—
Kristian Winfield,
New York Daily News,
9 June 2026
-
Which is okay, because the XLE serves as something of an impenetrable panic room and command center once parked.—
New Atlas,
New Atlas,
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 15 Jun. 2026.
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