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
The house is designed to be a prototype for resiliency, impervious to earthquakes, hurricanes, termites, and, of course, wildfires.
—
Dana Goodyear, New Yorker, 22 Sep. 2025
Waterproof materials are impervious to water, providing a complete barrier, while water-resistant materials only resist water penetration to a certain degree before the water seeps through.
—Sophie Flaxman, Better Homes & Gardens, 22 Sep. 2025
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
See All Example Sentences for impervious
Dana Goodyear, New Yorker, 22 Sep. 2025
Waterproof materials are impervious to water, providing a complete barrier, while water-resistant materials only resist water penetration to a certain degree before the water seeps through.
—Sophie Flaxman, Better Homes & Gardens, 22 Sep. 2025
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
See All Example Sentences for impervious
Recent Examples of Synonyms for impervious
Adjective
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As an example, Sopo said that in some majority-Hispanic Congressional districts in South Texas, conservative Latinos ran in races with historically tight margins of victory.—
Miami Herald,
Miami Herald,
7 Nov. 2025
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But Charlotte Republicans are now left wondering how supposed tight races ran away from them and what comes next for their beleaguered party.—
Charlotte Observer,
Charlotte Observer,
7 Nov. 2025
Adjective
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In extremely dense fog where visibility is near zero, the best course of action is to first turn on your hazard lights, then simply pull into a safe location such as a parking lot of a local business, and stop.—
CA Weather Bot,
Sacbee.com,
11 Nov. 2025
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The chestnut—nutrient dense, hardy, quietly elegant—is a symbol with global resonance.—
Todd Plummer,
Vogue,
11 Nov. 2025
Adjective
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The company says the finalized Bio foil provides the full and appropriate level of impermeable barrier protection and odorless performance.—
New Atlas,
New Atlas,
9 Oct. 2025
-
Chocolate brown stripes punctuate a light charcoal gray background, and the low-pile weave made from recycled polyester gives it an impermeable, easy-to-clean surface.—
Julia Harrison,
Architectural Digest,
6 Oct. 2025
Adjective
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This was a decisive turn away from Hasina’s India-first posture and toward closer alignment with Beijing.—
MUHIB RAHMAN,
Foreign Affairs,
12 Nov. 2025
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Highly acidic foods like pickles and tomatoes will react with the can after an extended period of time, causing both taste and texture changes so pay particularly close attention to expiration dates on these items.—
Patricia Shannon,
Southern Living,
11 Nov. 2025
Adjective
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The thick artificial foliage is pre-lit with warm white LED bulbs spaced through the entire length of the 10-foot piece.—
Kate McGregor,
Architectural Digest,
5 Nov. 2025
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With more than 38,000 gallons of fuel on board the cargo flight bound for Hawaii, the crash created a massive ball of fire – punctuated by smaller explosions from flammable material on the ground – and sent a towering plume of thick black smoke into the sky.—
Karina Tsui,
CNN Money,
5 Nov. 2025
Adjective
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And in the chaotic months since, clues about Tice’s fate have begun to seep through the walls of Syria’s once-impenetrable prisons and palaces.—
Rob Picheta,
CNN Money,
28 Oct. 2025
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Yes, only two additional albums in 30 years since his 1995 debut, with a 14-year gap between the second and third, but an impenetrable recipe for everyone from Beyoncé to Kendrick Lamar.—
Kevin Powell,
MSNBC Newsweek,
16 Oct. 2025
Adjective
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Resilience is the key The word ‘resilient’ used to mean impregnable and capable of withstanding all challenges.—
David Parker,
Forbes.com,
31 July 2025
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One of the grandest occasions in golf was in 1930, when the great Bobby Jones won the British Amateur at St. Andrews and then captured the claret jug at Royal Liverpool on his way to winning the Grand Slam of that era — the impregnable quadrilateral, as it was called.—
Doug Ferguson,
Chicago Tribune,
16 July 2025
Adjective
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The heavy snow will make many roads impassable and may produce power outages due to the weight of the snow on tree limbs and power lines.—
NC Weather Bot,
Charlotte Observer,
10 Nov. 2025
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Until the 1950s, Livigno was completely isolated during the winter, when heavy snow would make the roads connecting it to Italy and Switzerland impassable.—
Laura Itzkowitz,
Travel + Leisure,
4 Nov. 2025
Cite this Entry
“Impervious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impervious. Accessed 14 Nov. 2025.
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