1
as in dense
impossible to get through or into
the wall of security people surrounding the rock band was impermeable
Synonyms & Similar Words
Relevance
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
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 impermeable
Taxing cruise ships with foreign flags seems like a simple concept, like building an impermeable border wall.
—
Roger Dooley, Forbes, 22 Feb. 2025
The impermeable bottom layer is deep in some areas – close to 600 feet – and shallow in others – like 50 feet.
—Daniel Desrochers, Kansas City Star, 16 Jan. 2025
As Hurricane Milton is expected to bring record-breaking storm surge yet again to the region, the hospital -- located on the bay near downtown Tampa -- is surrounded by the water-impermeable barrier once more.
—Meredith Deliso, ABC News, 9 Oct. 2024
Strong metal clamps replicate the design of the polymer hinges on regular Pelican cases, squeezing the case shut on the gasket to create an impermeable seal.
—Wes Siler, Outside Online, 26 Mar. 2025
See All Example Sentences for impermeable
Roger Dooley, Forbes, 22 Feb. 2025
The impermeable bottom layer is deep in some areas – close to 600 feet – and shallow in others – like 50 feet.
—Daniel Desrochers, Kansas City Star, 16 Jan. 2025
As Hurricane Milton is expected to bring record-breaking storm surge yet again to the region, the hospital -- located on the bay near downtown Tampa -- is surrounded by the water-impermeable barrier once more.
—Meredith Deliso, ABC News, 9 Oct. 2024
Strong metal clamps replicate the design of the polymer hinges on regular Pelican cases, squeezing the case shut on the gasket to create an impermeable seal.
—Wes Siler, Outside Online, 26 Mar. 2025
See All Example Sentences for impermeable
Recent Examples of Synonyms for impermeable
Adjective
-
Editor’s picks The world itself is lively, if not exactly dense.—
Christopher Cruz,
Rolling Stone,
6 June 2025
-
In Puerto Rico earlier in the week, the cloud was dense and caused hazy skies, according to the National Weather Service in San Juan.—
Jeanine Santucci,
USA Today,
5 June 2025
Adjective
-
Money was tighter than a banjo string around the Carter house at that time.—
Tim Carter,
Hartford Courant,
14 June 2025
-
All three teams are putting on a show, and with the race so tight, the trio of teams could be fighting for the same prizes when the trade deadline arrives.—
Hunter Mulholland,
MSNBC Newsweek,
13 June 2025
Adjective
-
These include the claim that children are virtually impervious to COVID, which has been refuted by the injury and death toll among children.—
Michael Hiltzik,
Los Angeles Times,
5 June 2025
-
First, the team looked at the microbiomes of corals that are impervious to SCTLD to try and harvest probiotics from these disease-resistant species.—
Laura Baisas,
Popular Science,
5 June 2025
Adjective
-
In her papers, there were thick scrapbooks of Christmas cards, many from fellow-celebrities—Berg clearly adored Christmas.—
Emily Nussbaum,
New Yorker,
9 June 2025
-
Jane is heard asking the male escort to wear a condom, but is interrupted by Combs, whose voice appears thick and slurred, as music pulsed in the background.—
Cheyenne Roundtree,
Rolling Stone,
8 June 2025
Adjective
-
And where leadership believes their infrastructure is impenetrable, red teams often walk through the front door with nothing more than confidence and a cover story.—
Jochen Schwenk,
Forbes.com,
4 June 2025
-
To say that this film is impenetrable is an understatement.—
Sophie Monks Kaufman,
IndieWire,
22 May 2025
Adjective
-
The driveway for Bower Apartments becomes inundated with several feet of water, and is likely impassable.—
NC Weather Bot,
Charlotte Observer,
13 May 2025
-
But the innkeepers reached her with news of impassable roads and mayhem.—
Barbara Kingsolver,
Southern Living,
25 Apr. 2025
Adjective
-
Some of the women became her close friends, and one became a longtime girlfriend.—
Hannah Goldfield,
New Yorker,
16 June 2025
-
Or, that their connection through her stepdad was not close enough to matter.—
Jayme Fraser,
USA Today,
16 June 2025
Adjective
-
Yet while hiring generally has slowed, other economists figured job growth remained sturdy last month as companies frustrated by labor shortages during the pandemic continued to curtail layoffs.—
Paul Davidson,
USA Today,
7 June 2025
-
Uwharrie National Forest About 1 hour and 15 minutes from Charlotte Pack sunscreen, bug spray, sturdy walking shoes, and lots of water and snacks for a day trip to Uwharrie National Forest—one of four national forests in North Carolina—and the Badin Lake Recreation Area.—
Lydia Mansel,
Southern Living,
7 June 2025
Cite this Entry
“Impermeable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impermeable. Accessed 19 Jun. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share