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
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of impervious
Various groups develop impervious boundaries, neutralizing the effectiveness of people who have to interact across them.
—
Carol Kinsey Goman, Forbes.com, 25 Aug. 2025
Roads, sidewalks, parking lots and even rooftops create more impervious surfaces where water falls and can't be absorbed into the ground.
—Laura Schulte, jsonline.com, 15 Aug. 2025
His position is secure but not impervious to public opinion.
—Colin Pascal, Baltimore Sun, 11 Aug. 2025
This compulsion was absolutely impervious to my will, and part of the problem was just the availability.
—Charles Trepany, USA Today, 6 Aug. 2025
See All Example Sentences for impervious
Carol Kinsey Goman, Forbes.com, 25 Aug. 2025
Roads, sidewalks, parking lots and even rooftops create more impervious surfaces where water falls and can't be absorbed into the ground.
—Laura Schulte, jsonline.com, 15 Aug. 2025
His position is secure but not impervious to public opinion.
—Colin Pascal, Baltimore Sun, 11 Aug. 2025
This compulsion was absolutely impervious to my will, and part of the problem was just the availability.
—Charles Trepany, USA Today, 6 Aug. 2025
See All Example Sentences for impervious
Recent Examples of Synonyms for impervious
Adjective
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So Rizza skipped the presentation format of the past in favor of a tight selection of one-on-one appointments, mostly with retailers.—
Sandra Salibian,
Footwear News,
3 Oct. 2025
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And results have largely been mixed since Carson Wentz has taken over as the starter, winning a 48-10 blowout over the Cincinnati Bengals in Week 3 and then losing a tight game in Ireland against the Pittsburgh Steelers.—
Reice Shipley,
MSNBC Newsweek,
3 Oct. 2025
Adjective
-
Other valuable fruiting plants include elderberry, spicebush (), and native roses, which produce nutrient-dense hips in fall.—
Maria Azzurra Volpe,
MSNBC Newsweek,
1 Oct. 2025
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Since September 2024, a new federal law requires mammogram reports to state whether breast tissue is dense, and to mention the possibility of additional imaging.—
Dr. Megha Gupta,
ABC News,
1 Oct. 2025
Adjective
-
Typically, these formations have porous rock layers overlaid by impermeable rock that blocks upward movement.—
Tejasri Gururaj,
Interesting Engineering,
3 Oct. 2025
-
Which means the bigger the economy, the greater the means to erect an impermeable national defense system.—
John Tamny,
Forbes.com,
12 Sep. 2025
Adjective
-
Trump has previously suggested a deal was close.—
Khaleda Rahman,
MSNBC Newsweek,
1 Oct. 2025
-
The trainer visits Pegasus daily and is like the horse’s shadow during hospital visits, keeping a close eye to ensure the safety of Pegasus and those around him.—
Miami Herald,
Miami Herald,
30 Sep. 2025
Adjective
-
Some models suggest that K2-18b is a hycean world — an ocean planet with a thick atmosphere of hydrogen — and the signature of dimethyl sulfide was detected by the James Webb Space Telescope.—
Keith Cooper,
Space.com,
1 Oct. 2025
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Its fabric is thick but not too heavy, according to reviewers, which is great for someone like me whose body temperature fluctuates constantly.—
Melody Kazel,
PEOPLE,
1 Oct. 2025
Adjective
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By emphasizing the caper aspect and the goofy comedy of all this over the intricate plotting that is a hallmark of Westlake’s novels, Black lowers the stakes of a heist that involves halting a speeding NY subway refuse train and busting into a supposedly impenetrable Brooklyn vault.—
David Rooney,
HollywoodReporter,
30 Sep. 2025
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Others – seemingly those who are non-religious or simply impenetrable by internet theories – quipped at the possibility.—
Melina Khan,
USA Today,
24 Sep. 2025
Adjective
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Portions of Highway 12 may be impassable at times due to ocean overwash, especially around times of high tide.—
NC Weather Bot,
Charlotte Observer,
30 Sep. 2025
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The famed route experienced extensive blowdowns, erosion, and landslides, resulting in much of the roadway being impassable after Helene struck in September 2024.—
Graham Hurley,
CNN Money,
21 Sep. 2025
Adjective
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Be sure to cover your head and neck with your arms, and crawl under a sturdy table if possible.—
CA Earthquake Bot,
Sacbee.com,
7 Oct. 2025
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The lone crack in Yesavage’s sturdy exterior came in the first inning.—
Mitch Bannon,
New York Times,
6 Oct. 2025
Cite this Entry
“Impervious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impervious. Accessed 8 Oct. 2025.
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