as in leakproof
made of or treated with material that does not allow water to penetrate
luckily, my backpack is waterproof, so my clothes didn't get wet
Synonyms & Similar Words
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Antonyms & Near Antonyms
as in slicker
a coat made of water-resistant material
remember your waterproof if you're walking around London in the winter
Synonyms & Similar Words
Example Sentences
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Recent Examples of waterproof
Stephanie Osmanski, Better Homes & Gardens, 5 Feb. 2026
Additionally, since this piece is machine washable with a nonslip backing, its waterproof barrier doesn’t sacrifice its plushness.
—Julia Harrison, Architectural Digest, 5 Feb. 2026
Jenny Wiegand, Outside, 14 Nov. 2025
The waterproof, gel-like formula uses film-forming silicones and waxes to create a flexible yet budge-proof seal that locks pigment in place.
—Christa Joanna Lee, Allure, 11 Nov. 2025
See All Example Sentences for waterproof
Adjective
Each light contains eight bright LED lights that are waterproof and feature an external waterproof switch.
—Stephanie Osmanski, Better Homes & Gardens, 5 Feb. 2026
Additionally, since this piece is machine washable with a nonslip backing, its waterproof barrier doesn’t sacrifice its plushness.
—Julia Harrison, Architectural Digest, 5 Feb. 2026
Noun
There’s a lot to love, from the waterproof, stretchy three-layer softshell outer fabric to the generous kangaroo pocket and the brilliant dropseat design that makes bathroom breaks easy.
—Jenny Wiegand, Outside, 14 Nov. 2025
The waterproof, gel-like formula uses film-forming silicones and waxes to create a flexible yet budge-proof seal that locks pigment in place.
—Christa Joanna Lee, Allure, 11 Nov. 2025
See All Example Sentences for waterproof
Recent Examples of Synonyms for waterproof
Adjective
-
Similar to its other products, this one has a leakproof lid, closeable straw cap, and wide mouth for easy drinking.—
Outside,
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
Noun
-
City slickers will definitely get a bang for their buck with this place, which is a lot more spacious than a shoebox on the Upper East Side.—
Madeleine Marr,
Miami Herald,
17 Nov. 2025
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During the Waleses' trip to Canada in October 1991, Diana made time between touring an AIDS hospice and a women's shelter to join William, 9, and Harry, 7, on a visit to Niagara Falls, where the trio donned rain slickers for a wet and wild voyage on the Maid of the Mist.—
Stephanie Sengwe,
People.com,
31 Aug. 2025
Adjective
-
Last week, Sanders — the longtime Vermont independent and staunch critic of the Republican president — called for a permanent cap of 15% on credit card rates.—
Morgan Chittum,
CNBC,
13 Feb. 2026
-
CrossFit, the high-intensity gym begun by the staunch libertarian Greg Glassman, went from 13 gyms in 2005 to 13,000 in 2016.—
Annie Levin,
Washington Post,
10 Feb. 2026
Noun
-
The trench doubles as a raincoat and features a detachable hood to keep your hair safe and sound on drizzly days.—
Annie Blackman,
InStyle,
8 Feb. 2026
-
But while British sleuths wear raincoats or umbrellas, Erica is more suited for a beautiful French scarf.—
Georg Szalai,
HollywoodReporter,
19 Jan. 2026
Noun
-
Stepping out to go shopping in Los Angeles, Jenner updated her classic trench and jeans formula with a little twist.—
Anna Cafolla,
Vogue,
8 Feb. 2026
-
Go for classic khaki and a silhouette that's tailored but not too tight, like this longline trench on sale now at Nordstrom.—
Lane Nieset,
Travel + Leisure,
7 Feb. 2026
Noun
-
Mary Jane eventually found her muck boots and an oilskin jacket in the back of the hallway closet.—
Kate Walbert,
The New Yorker,
29 Nov. 2021
-
The jean were presented alongside a collection of classic workwear with Japanese vintage details, and oilskin coat inspired by one of creative director Maria Heilmann’s vintage pieces, and handknitted pieces crafted from undyed llama.—
Angela Velasquez,
Sourcing Journal,
3 Sep. 2019
Cite this Entry
“Waterproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/waterproof. Accessed 15 Feb. 2026.
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