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
Knix is offering 20 percent off its entire range of leakproof underwear, wireless bras, and more.
—
Jeaneen Russell, PEOPLE, 15 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
Leakproof Toiletry Bottles Though travel-size toiletry holders are not exactly new, this set from Mrsdry is a favorite because of its leakproof build.
—Kristin Braswell, Travel + Leisure, 8 Mar. 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
Jeaneen Russell, PEOPLE, 15 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
Leakproof Toiletry Bottles Though travel-size toiletry holders are not exactly new, this set from Mrsdry is a favorite because of its leakproof build.
—Kristin Braswell, Travel + Leisure, 8 Mar. 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
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This clear coat creates a waterproof barrier that protects the deck’s surface from UV exposure, moisture damage, rot, mold, and mildew.—
Karen Brewer Grossman,
Southern Living,
10 Apr. 2026
-
This versatile 2-in-1 pet car seat seamlessly transitions from a secure car seat to a cozy bed, featuring waterproof fabric and adjustable safety belts for worry-free transit.—
Rachel Cortez,
USA Today,
10 Apr. 2026
Adjective
-
Saber rattling between the US and Cuba has reached a fever pitch following a US military operation in Caracas in January that captured Venezuelan leader Nicolás Maduro, a staunch ally of the Cuban government.—
Patrick Oppmann,
CNN Money,
16 Apr. 2026
-
Leslie and her gruff-but-caring, staunch Libertarian boss Ron Swanson (the incomparable Nick Offerman) became symbols of bygone bipartisanship, not to mention endless memes.—
Jennifer Armstrong,
IndieWire,
15 Apr. 2026
Cite this Entry
“Leakproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/leakproof. Accessed 23 Apr. 2026.
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