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
Tekton bonds the body together into a seamless, self-supporting monocoque optimized for thermal and leakproof integrity.
—
New Atlas, 4 Mar. 2026
The Owala FreeSip is my current favorite in such a crowded marketplace for its easy-to-drink and totally leakproof design.
—Alesandra Dubin, Travel + Leisure, 21 Feb. 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
Its pairs come in easy hipster and bikini cuts in plenty of approachable colors and prints, as well as leakproof undies that can make navigating a first period or heavier cycle more comfortable.
—Malia Griggs, Glamour, 12 Dec. 2025
Rambler 26-ounce Bottle More than 1,000 Amazon shoppers have already purchased this Yeti water bottle, fully equipped with an easy-carrying handle and leakproof straw cap for sipping on the go.
—Mia Huelsbeck, PEOPLE, 29 Nov. 2025
Its lid is leakproof and features a convenient carrying handle.
—Bestreviews, Mercury News, 29 Nov. 2025
New Atlas, 4 Mar. 2026
The Owala FreeSip is my current favorite in such a crowded marketplace for its easy-to-drink and totally leakproof design.
—Alesandra Dubin, Travel + Leisure, 21 Feb. 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
Its pairs come in easy hipster and bikini cuts in plenty of approachable colors and prints, as well as leakproof undies that can make navigating a first period or heavier cycle more comfortable.
—Malia Griggs, Glamour, 12 Dec. 2025
Rambler 26-ounce Bottle More than 1,000 Amazon shoppers have already purchased this Yeti water bottle, fully equipped with an easy-carrying handle and leakproof straw cap for sipping on the go.
—Mia Huelsbeck, PEOPLE, 29 Nov. 2025
Its lid is leakproof and features a convenient carrying handle.
—Bestreviews, Mercury News, 29 Nov. 2025
Recent Examples of Synonyms for leakproof
Adjective
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For a more budget-friendly pick, try these waterproof hiking pants at Amazon that will keep you dry even in the rainiest places.—
Alexandra Pereira,
Travel + Leisure,
8 Mar. 2026
-
The waterproof, buoyant outfits maintain body temperature for six hours, manufacturers say, even when temperatures are as low as -20 C (-4 F).—
Maureen O'Hare,
CNN Money,
7 Mar. 2026
Adjective
-
But as bad as the performance was, McAvoy remains a staunch believer in the team as the league goes into it’s most uncertain day of the season.—
Steve Conroy,
Boston Herald,
6 Mar. 2026
-
Mullin, a staunch Trump supporter, has no law enforcement experience.—
Oren Oppenheim,
ABC News,
5 Mar. 2026
Cite this Entry
“Leakproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/leakproof. Accessed 9 Mar. 2026.
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