as in waterproof
unable to be penetrated by water because of construction or treated material
the campers stayed dry in their leakproof tents
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Recent Examples of leakproof
Creating a leakproof barrier for your backpack, a rain cover is absolutely essential for blocking the rain from seeping in and soaking your trail snacks, electronic devices, and extra layers.
—
Olivia Young, Travel + Leisure, 20 Apr. 2026
Or, for those tired of uncomfortable pads and tampons, now’s the time to try out Knix’s leakproof period underwear.
—Izzy Baskette, PEOPLE, 17 Apr. 2026
Packaged in a keepsake box for instant gifting, this kit also includes a leakproof tumbler (new moms need to stay hydrated), mini waterproof pouch, and a carryall for moms on the move.
—Pamela Brill, Parents, 7 Apr. 2026
Stop spills in their tracks by placing liquids in leakproof containers—even a Ziploc bag will do the trick in a pinch!
—Hannah Chubb, Condé Nast Traveler, 4 Apr. 2026
Tekton bonds the body together into a seamless, self-supporting monocoque optimized for thermal and leakproof integrity.
—New Atlas, 4 Mar. 2026
Similar to its other products, this one has a leakproof lid, closeable straw cap, and wide mouth for easy drinking.
—Outside, 5 Feb. 2026
It’s made from triple-layer stainless steel, has a leakproof lid, and comes with a dual straw and sip lid.
—Alicia Geigel, Southern Living, 29 Jan. 2026
The team revealed that to achieve leakproof liquid and vapor containment, in addition to adequate insulation and support, the DUNE cryostats are composed of several layers.
—Prabhat Ranjan Mishra, Interesting Engineering, 15 Jan. 2026
Olivia Young, Travel + Leisure, 20 Apr. 2026
Or, for those tired of uncomfortable pads and tampons, now’s the time to try out Knix’s leakproof period underwear.
—Izzy Baskette, PEOPLE, 17 Apr. 2026
Packaged in a keepsake box for instant gifting, this kit also includes a leakproof tumbler (new moms need to stay hydrated), mini waterproof pouch, and a carryall for moms on the move.
—Pamela Brill, Parents, 7 Apr. 2026
Stop spills in their tracks by placing liquids in leakproof containers—even a Ziploc bag will do the trick in a pinch!
—Hannah Chubb, Condé Nast Traveler, 4 Apr. 2026
Tekton bonds the body together into a seamless, self-supporting monocoque optimized for thermal and leakproof integrity.
—New Atlas, 4 Mar. 2026
Similar to its other products, this one has a leakproof lid, closeable straw cap, and wide mouth for easy drinking.
—Outside, 5 Feb. 2026
It’s made from triple-layer stainless steel, has a leakproof lid, and comes with a dual straw and sip lid.
—Alicia Geigel, Southern Living, 29 Jan. 2026
The team revealed that to achieve leakproof liquid and vapor containment, in addition to adequate insulation and support, the DUNE cryostats are composed of several layers.
—Prabhat Ranjan Mishra, Interesting Engineering, 15 Jan. 2026
Recent Examples of Synonyms for leakproof
Adjective
-
There’s a trolley sleeve on the back to slip over a suitcase, and the waterproof material will keep your items protected no matter how rough the TSA is with it.—
Olivia Dubyak,
Travel + Leisure,
25 Apr. 2026
-
Each piece is rust-resistant, and the cushions are waterproof to hold up against any weather condition.—
Rachel Trujillo,
PEOPLE,
25 Apr. 2026
Adjective
-
In most cases, the first few episodes of a series stream for free, and a viewer pays for the rest; profit is further maximized through a staunch commitment to efficiency, often at the expense of labor standards.—
Chang Che,
New Yorker,
25 Apr. 2026
-
Arbeloa was one of Jose Mourinho’s staunchest defenders during the Portuguese manager’s divisive time in charge from 2010-2013 — when Mourinho fell out with then-captain and Spain icon Iker Casillas.—
Guillermo Rai,
New York Times,
23 Apr. 2026
Cite this Entry
“Leakproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/leakproof. Accessed 27 Apr. 2026.
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