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
Andrew Gebhart, PC Magazine, 28 May 2026
The military used beeswax to waterproof canvas tents and rucksacks, use in sunscreen and camouflage, and wax and coat planes to reduce drag and save money on fuel.
—Literary Hub, 27 May 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
The titanium frame features an IP68 rating for dust and water resistance, and is waterproof to a depth of 328 feet.
—Andrew Gebhart, PC Magazine, 28 May 2026
The military used beeswax to waterproof canvas tents and rucksacks, use in sunscreen and camouflage, and wax and coat planes to reduce drag and save money on fuel.
—Literary Hub, 27 May 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
-
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
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
-
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
-
Palace’s defence, so staunch for much of this campaign, snuffed out any serious danger.—
Matt Woosnam,
New York Times,
28 May 2026
-
But the Veterans Park Neighborhood Association, staunch opponents of the shelter location, went to court in December over the city’s previous decision.—
Idaho Statesman,
Idaho Statesman,
28 May 2026
Noun
-
Arsene Wenger might have struggled with his raincoat, but rarely with his orchestra.—
Zohran Mamdani,
New York Times,
29 May 2026
-
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
-
The fifth robot is less effective, rolling onto its side in a trench, and the sixth intercepted by the Russians.—
Nick Paton Walsh,
CNN Money,
30 May 2026
-
Bobby Brown, a fellow 2025 arrival, is nursing a minor calf injury as well, which has given Jackson the opportunity for extended reps with the top trench unit.—
Mike Kaye
May 28,
Charlotte Observer,
28 May 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 5 Jun. 2026.
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