Definition of waterproofnext
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

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waterproof

2 of 2

noun

chiefly British
as in slicker
a coat made of water-resistant material remember your waterproof if you're walking around London in the winter

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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 waterproof
Adjective
Otherwise, the wound should be completely covered with a waterproof bandage. Bill Sullivan, The Conversation, 11 Aug. 2026 Choose from eight lighting modes, including waves, slow fade, twinkle, and steady on, and rest easy knowing the IP65 waterproof construction has your back when the weather goes south. Better Homes & Gardens, 9 Aug. 2026
Noun
The super-absorbent top layer is designed to tackle spills while the waterproof back keeps your little one’s clothing dry. Pamela Brill, Parents, 7 Apr. 2026 Items that are wind-resistant and waterproof will be good for use in many harsh weather conditions in which the user would need protection. Bestreviews, Chicago Tribune, 2 Apr. 2026 See All Example Sentences for waterproof
Recent Examples of Synonyms for waterproof
Adjective
  • It’s made with food-grade stainless steel that is both BPA and phthalate free, and also features a leakproof lid that easily glides back and forth to open or close.
    Stephanie Osmanski, Better Homes & Gardens, 17 July 2026
  • Each container comes with a leakproof, airtight, and BPA-free plastic lid that is safe for use in the microwave, dishwasher, and freezer, so each one is easy to use and clean.
    Alicia Geigel, Southern Living, 14 July 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
  • But concerns about Israel’s ability and willingness to rein in the settlers remain even among evangelicals, who are among the staunchest Christian supporters of Israel.
    ABC News, ABC News, 14 Aug. 2026
  • Supreme Court wants swift action Hoskins, a staunch supporter of the map, has boasted about the case on social media.
    Kacen Bayless, Kansas City Star, 14 Aug. 2026
Noun
  • In Reykjavik, clouds did not prevent hundreds of people from gathering in bright raincoats in front of the landmark Hallgrímskirkja church as the skies darkened.
    ABC News, ABC News, 12 Aug. 2026
  • Breathlessly Eva, 41, runs up and down the dusty stairs in a bright yellow raincoat, exposing the real estate investor’s schemes, rallying her neighbors, fighting with her husband, wondering what went wrong.
    Georg Szalai, HollywoodReporter, 7 Aug. 2026
Noun
  • Last night, Gerber continued her love affair with the do-everything, go-anywhere little black dress, wearing a knee-length slip beneath an oversized khaki trench.
    Hannah Jackson, Vogue, 14 Aug. 2026
  • Both sides have consequently dug legal and PR trenches to snipe at the other and rally endorsements.
    Dominic Patten, Deadline, 14 Aug. 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
  • Daigle has a face like an oilskin raincoat, patinated from life on the land moonlighting for mining companies—chasing other people’s dreams.
    Genesee Keevil, Popular Mechanics, 17 May 2018

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Cite this Entry

“Waterproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/waterproof. Accessed 19 Aug. 2026.

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