as in waterproof
unable to be penetrated by water because of construction or treated material
the campers stayed dry in their leakproof tents
Synonyms & Similar Words
Relevance
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 leakproof
This version also comes with a straw cap, which, when closed, is leakproof and shatter-resistant.
—
Lydia Mansel, Travel + Leisure, 16 June 2026
For example, ads for Knix’s leakproof underwear were spotted inside New York City subway cars this spring, and often on Hulu.
—Alyssa Goldberg, USA Today, 8 June 2026
The tumbler’s leakproof lid also rotates for three comfortable sipping positions.
—Sian Babish, PEOPLE, 3 June 2026
LifeStraw’s redesigned Peak Series Straw features a durable, leakproof design that’s great for backcountry treks.
—Sheena Vasani, The Verge, 22 May 2026
The leakproof water tank lid is easily opened by pulling up on its bottom edge.
—Bestreviews, Mercury News, 13 May 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
Lydia Mansel, Travel + Leisure, 16 June 2026
For example, ads for Knix’s leakproof underwear were spotted inside New York City subway cars this spring, and often on Hulu.
—Alyssa Goldberg, USA Today, 8 June 2026
The tumbler’s leakproof lid also rotates for three comfortable sipping positions.
—Sian Babish, PEOPLE, 3 June 2026
LifeStraw’s redesigned Peak Series Straw features a durable, leakproof design that’s great for backcountry treks.
—Sheena Vasani, The Verge, 22 May 2026
The leakproof water tank lid is easily opened by pulling up on its bottom edge.
—Bestreviews, Mercury News, 13 May 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
Recent Examples of Synonyms for leakproof
Adjective
-
Like its Best of Beauty-winning foundation counterpart, Traceless offers a natural-matte finish that's waterproof, transfer-resistant, and humidity-proof.—
Jailynn Taylor,
Allure,
13 June 2026
-
The durable, waterproof material is easy to wash and comfortable to wear for hours at a time, thanks to shock-absorbing midsoles and ridged, grippy outsoles.—
Sophie Dodd,
Travel + Leisure,
12 June 2026
Adjective
-
In that post, Wyden, a staunch Democrat, sounded a lot like Florida's Rick Scott, one of the most conservative members of the Senate.—
Zachary Schermele,
USA Today,
10 June 2026
-
The Supreme Court allowed the firing to go through on a temporary basis, over staunch dissents from the court's three liberal justices.—
Nina Totenberg,
NPR,
9 June 2026
Cite this Entry
“Leakproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/leakproof. Accessed 19 Jun. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
