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
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
Unfortunately, the tariffs are what seem most impervious to Trump’s whims.
—Matt Fleming, Oc Register, 23 June 2025
See All Example Sentences for impervious
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
Unfortunately, the tariffs are what seem most impervious to Trump’s whims.
—Matt Fleming, Oc Register, 23 June 2025
See All Example Sentences for impervious
Recent Examples of Synonyms for impervious
Adjective
-
Jarrett Stidham fired a tight pass in the end zone to Franklin, who shook his defender with a crisp slant route.—
Nick Kosmider,
New York Times,
2 Aug. 2025
-
As the flight finally landed, the pilot asked passengers to let anyone who had a tight connection exit the plane first.—
Michael Nied,
People.com,
2 Aug. 2025
Adjective
-
Although rental costs have soared particularly in denser coastal cities, prices have jumped in Indianapolis too.—
Jordan Smith,
IndyStar,
24 July 2025
-
It’s already been tested out successfully in dense urban areas.—
Heather Farmbrough,
Forbes.com,
24 July 2025
Adjective
-
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
-
To avoid puddling, use permeable landscape fabric rather than impermeable plastic sheeting.—
Luke Miller,
Better Homes & Gardens,
17 July 2025
Adjective
-
With the calendar officially flipped to August, the Miami Herald is counting down 30 of the most important players on the Hurricanes’ roster, one per day leading up to the season opener, to provide a closer look at the team heading into coach Mario Cristobal’s fourth season.—
Jordan McPherson,
Miami Herald,
3 Aug. 2025
-
How to get there Canyonlands Regional Airport (CNY) is the closest commercial airport to Moab, about a 20-minute drive to the center of town.—
Kathleen Wong,
USA Today,
3 Aug. 2025
Adjective
-
Back inside, the primary suite carries on the adobe style with thick, smooth walls and rounded edges.—
Demetrius Simms,
Robb Report,
14 July 2025
-
The three-day Tampa conference was thick with criticism of DOJ and disbelief that the president could have let so many people down.—
Shelby Talcott,
semafor.com,
14 July 2025
Adjective
-
Many organizations, particularly in healthcare and pharma, sit on mountains of legacy data that remain impenetrable to the teams who need it most.—
Abigail Stuart,
Forbes.com,
10 July 2025
-
Riddle has done that in part by embracing the community that sees her as a way into a complicated and sometimes deliberately impenetrable sport.—
Caoimhe O'Neill,
New York Times,
10 July 2025
Adjective
-
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
-
North Plainfield, New Jersey, Mayor Lawrence La Ronde told CNN affiliate WABC that emergency crews rescued people from at least 30 homes, after streets became completely flooded and were impassable.—
Luke Snyder,
CNN Money,
14 July 2025
Adjective
-
That’s where Baker and his team got the idea to find the sturdiest survivors and interbreed them with their Florida siblings.—
Alex Harris
July 25,
Miami Herald,
25 July 2025
-
The puppeteers then worked from the artist’s sculptures to make sturdier marionettes for performance.—
Ben Miller Laetitia Vançon,
New York Times,
24 July 2025
Cite this Entry
“Impervious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impervious. Accessed 6 Aug. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share