1
as in impervious
impossible to get through or into
the wall of security people surrounding the rock band was impermeable
Synonyms & Similar Words
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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
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Recent Examples of impermeable
Oil and gas infuse the pores of sandstone; layers of impermeable caprock trap it inside.
—
Jeffrey Marlow,
New Yorker,
5 Apr. 2026
Armed with fabulous ensembles and accessories, as well as her quick wit, Maxine attempts to cross that impermeable line between the haves and the have-nots.
—
Rosy Cordero,
Deadline,
2 Mar. 2026
My father’s 1930s interviews tell stories of couples who defied Chicago’s seemingly impermeable color line.
—
Dorothy Roberts,
Time,
13 Feb. 2026
Driveway materials can be impermeable or permeable—so traditional concrete and asphalt, or a pervious solution that allows rainwater to pass through.
—
Alexandra Kelly,
Martha Stewart,
9 Feb. 2026
See All Example Sentences for impermeable
Jeffrey Marlow,
New Yorker,
5 Apr. 2026
Armed with fabulous ensembles and accessories, as well as her quick wit, Maxine attempts to cross that impermeable line between the haves and the have-nots.
—
Rosy Cordero,
Deadline,
2 Mar. 2026
My father’s 1930s interviews tell stories of couples who defied Chicago’s seemingly impermeable color line.
—
Dorothy Roberts,
Time,
13 Feb. 2026
Driveway materials can be impermeable or permeable—so traditional concrete and asphalt, or a pervious solution that allows rainwater to pass through.
—
Alexandra Kelly,
Martha Stewart,
9 Feb. 2026
See All Example Sentences for impermeable
Recent Examples of Synonyms for impermeable
Adjective
-
Overloading Your Washer Even the softest of towels are not impervious to improper laundering, and overloading your washer or using too little water can affect how thoroughly the towels are washed.
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Crafted from durable high-density polyethylene, these Adirondack chairs are resistant to corrosion and impervious to the elements.
Adjective
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With life spent largely on transit, navigating tight layovers, and using their days off to jet-set across the globe, flight attendants have mastered the art of packing.
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Polls overall anticipate a tight race, including a June 19 survey by the news site Zeteo showing DeGette trailing Kiros 41% to 36%.
Adjective
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More memory, denser racks, faster deployment The new server promises 50 percent more memory per socket and more GPU memory compared to the previous generation.
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For ultimate comfort, the loveseat and chairs also include dense foam cushions wrapped in smooth polyester.
Adjective
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Measuring less than a millimeter thick, this sensor basically acts like a neuron in our brain, processing and keeping the information even after the original signal is gone.
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ZDNet Korea also reported that the Wide Fold uses 60μm ultra-thin glass on its inner display, 30% thicker than the 45μm used on the Z Fold 8 Ultra.
Adjective
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With the wrap in front of you, fold up the edge closest to you.
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Because wells in the region are large and close to one another, restarting production will require significant coordination across companies and countries to ensure consistent pressure across multiple wells.
Adjective
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In spite of D'Arcy's best efforts, Rhaenyra is an impenetrable character with illogical choices and zero magnetism to the viewers (or seemingly, her councilors).
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The Shiatsung Project In a bungalow surrounded by an impenetrable wall, a woman has been raised in isolation by a talking screen mounted on the living room wall, fullfilling her every wish without ever revealing the reasons for its life and existence.
Adjective
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South of there, at Kessler Air Force Base, several roads became impassible.
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Floodwaters in Waco left roads on Interstate 35 impassable and stranded drivers in their vehicles, prompting numerous search-and-rescue responses early Monday, June 15, Texas Game Wardens said.
Adjective
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Alexander the Great conquered it in 332 BCE after building a causeway to what had been considered an impregnable island fortress.
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On that occasion a team made up of players who had all been born in Haiti shocked an Italy team famed for its impregnable defense.
Cite this Entry
“Impermeable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impermeable. Accessed 2 Jul. 2026.
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