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
Relevance
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
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of impervious
CEOs, in particular, are not impervious to sophisticated spear-phishing attacks.
—
Chuck Brooks, Forbes.com, 6 July 2025
NGOs were never impervious to political challenges or financial constraints.
—Sarah Bush, Foreign Affairs, 3 July 2025
The code also would set permeability requirements and expand the definition of artificial turf to include turf that is not 100% impervious.
—Pili Saravia, Austin American Statesman, 2 July 2025
The data further reveal that Latino neighborhoods often have more impervious surfaces and older housing stock lacking modern cooling systems, both of which compound the risks of heat exposure.
—Marcos Magaña, Los Angeles Times, 24 June 2025
See All Example Sentences for impervious
Chuck Brooks, Forbes.com, 6 July 2025
NGOs were never impervious to political challenges or financial constraints.
—Sarah Bush, Foreign Affairs, 3 July 2025
The code also would set permeability requirements and expand the definition of artificial turf to include turf that is not 100% impervious.
—Pili Saravia, Austin American Statesman, 2 July 2025
The data further reveal that Latino neighborhoods often have more impervious surfaces and older housing stock lacking modern cooling systems, both of which compound the risks of heat exposure.
—Marcos Magaña, Los Angeles Times, 24 June 2025
See All Example Sentences for impervious
Recent Examples of Synonyms for impervious
Adjective
-
When culture starts performing alignment instead of living it, most companies reach for fixes: tighter messaging, new values, more playbooks.—
Vibhas Ratanjee,
Forbes.com,
15 Aug. 2025
-
That’s because of the NFL’s ownership rules, which are tighter than those in other sports.—
Eben Novy-Williams,
Sportico.com,
14 Aug. 2025
Adjective
-
Open star clusters typically reside in the dense spiral arms of the Milky Way, where the gravity of passing stars can tug at their outermost members, pulling them apart over the course of millions of years.—
Anthony Wood,
Space.com,
17 Aug. 2025
-
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.—
NC Weather Bot,
Charlotte Observer,
17 Aug. 2025
Adjective
-
But simply piling mounds of topsoil on top of hard clay ground can result in an impermeable layer, both to water and roots.—
Andy Wilcox,
Better Homes & Gardens,
7 Aug. 2025
-
That aquifer is covered by impermeable layers of rock or clay, putting the water in it under high pressure in some locations.—
Claire Osborn,
Austin American Statesman,
30 July 2025
Adjective
-
Read More: The Real Danger of the Trump-Putin Summit At the press conference, Putin talked about how close Russia was to America (shades of Sarah Palin) and claimed that Russian trade with American has increased by 20%.—
Richard Stengel,
Time,
16 Aug. 2025
-
Still, don’t fully count out the Cajuns — at least to keep it close.—
Maddie Hartley
August 15,
Kansas City Star,
15 Aug. 2025
Adjective
-
Each Jesse & Ben’s fry is three-eights of an inch thick.—
Andrew Watman,
Forbes.com,
7 Aug. 2025
-
Rare models like a two-door Runabout might push $50K. Along with help from Jeff Humble, president of the Northern Michigan Ts (the local Model T club), Dean trained himself to drive the Model T using an original owner’s manual as thick as Manhattan’s phone book.—
The Detroit News,
Chicago Tribune,
6 Aug. 2025
Adjective
-
Frere-Jones manages to make Hardwick’s sometimes impenetrable prose sound like the coolest hat trick.—
Brittany Allen,
Literary Hub,
24 July 2025
-
Royal carriages are, of course, not quite as impenetrable as the presidential state car, nicknamed The Beast.—
Jack Royston,
MSNBC Newsweek,
15 July 2025
Adjective
-
The dispatcher told him that first responders were having trouble getting to his property since a road was impassable.—
Jared Kofsky,
ABC News,
29 July 2025
-
Several major roads in Montgomery, Prince George’s and Anne Arundel counties in Maryland, as well as in Fairfax County in Virginia, were impassable on Saturday evening.—
New York Times,
New York Times,
20 July 2025
Adjective
-
Alem and Schneider arrived at their farm plot in Bronzeville in broad-brimmed hats and sturdy boots, ready to harvest zucchini and cucumber under a blazing summer sun.—
Nara Schoenberg,
Chicago Tribune,
4 Aug. 2025
-
The large arachnids may look like any normal tarantula from first glance — long, sturdy legs, hair covering their bodies and two shorter legs at the front of the body poised to grab unsuspecting prey.—
Irene Wright,
Miami Herald,
4 Aug. 2025
Cite this Entry
“Impervious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impervious. Accessed 20 Aug. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share