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
John Tufts, IndyStar, 18 June 2026
As a general rule, vinyl made of wood plastic composite (WPC) and stone-plastic composite core (SPC) is waterproof, whereas luxury vinyl plank (LVP) and PVC vinyl are only water-resistant.
—Sophie Flaxman, Better Homes & Gardens, 17 June 2026
Nathan Allen, Travel + Leisure, 14 Nov. 2025
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
See All Example Sentences for waterproof
Adjective
Keep important paper documents in a secure, waterproof container in case of damage.
—John Tufts, IndyStar, 18 June 2026
As a general rule, vinyl made of wood plastic composite (WPC) and stone-plastic composite core (SPC) is waterproof, whereas luxury vinyl plank (LVP) and PVC vinyl are only water-resistant.
—Sophie Flaxman, Better Homes & Gardens, 17 June 2026
Noun
Helly Hansen employs some of its proprietary waterproof and breathable materials, including PrimaLoft Black Eco insulation, a PFC-free DWR treatment, and various ventilation options.
—Nathan Allen, Travel + Leisure, 14 Nov. 2025
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
See All Example Sentences for waterproof
Recent Examples of Synonyms for waterproof
Adjective
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This version also comes with a straw cap, which, when closed, is leakproof and shatter-resistant.—
Lydia Mansel,
Travel + Leisure,
16 June 2026
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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
Noun
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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
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Frama’s shelving unit extends your staunch Brutalist design mindset to the bathroom.—
Audrey Lee,
Architectural Digest,
18 June 2026
-
Since splitting from OpenAI to start Anthropic in 2021, Amodei and his top executives have been staunch advocates for AI regulation and have supported legislation at both state and federal levels.—
Ashley Capoot,
CNBC,
17 June 2026
Noun
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Arsene Wenger might have struggled with his raincoat, but rarely with his orchestra.—
Zohran Mamdani,
New York Times,
29 May 2026
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Flush with venture capital, these DTC companies all offered more than just a fashion-forward raincoat or compostable footwear.—
Allison Morrow,
CNN Money,
18 May 2026
Noun
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This poppy red trench is the kind of summer statement piece that’s worth the investment, especially with this discount.—
Aemilia Madden,
Vogue,
18 June 2026
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West Metro Fire Rescue/Facebook That department's crews found the man stuck in a narrow hole and lying in mud and water at the bottom of the 15-foot deep trench, the department stated in a social media post.—
Logan Smith,
CBS News,
14 June 2026
Noun
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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
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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 21 Jun. 2026.
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