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
Simply use a cleansing balm or micellar water makeup remover that dissolves the pigments and film-forming agents that make the eyeshadow waterproof and long-lasting. Laura Sandroni, Vogue, 31 Aug. 2026 The brow gel is also waterproof and can last through ocean swims, sweaty workouts, and more. Gina Vaynshteyn, StyleCaster, 31 Aug. 2026
Noun
And use all the proper types of sunblock and waterproof, too. Scott Fowler, Charlotte Observer, 10 June 2026 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 See All Example Sentences for waterproof
Recent Examples of Synonyms for waterproof
Adjective
  • The real genius is the second lid, which turns the whole thing into a leakproof pitcher.
    Alaina Chou, Bon Appetit Magazine, 31 Aug. 2026
  • If using cold water for thawing, place chicken in leakproof packaging, submerge, and allow about 30 minutes for every pound.
    Sheena Chihak, Better Homes & Gardens, 20 Aug. 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
  • When Johannès was left off the EuroBasket squad in 2023, she was caught between the French national team’s staunch requirements and the WNBA’s prioritization rule, which required her to be present for opening day.
    Eden Laase, New York Times, 4 Sep. 2026
  • Johnson’s mayoral tenure has been marked by an inability to work with Springfield, a skill deficiency displayed by his staunch allies at the teachers union and the aligned board members on the CBOE.
    The Editorial Board, Chicago Tribune, 31 Aug. 2026
Noun
  • Cooler itineraries, like to the Norwegian Fjords or Alaska, require extra layers such as insulated raincoats and gloves.
    Kelsey Glennon, Travel + Leisure, 31 Aug. 2026
  • 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
Noun
  • Firefighters hacked through wood, slate and concrete trench lines, a process the Reserve Organization of America says likely generated silica-containing dust.
    Karissa Waddick, USA Today, 6 Sep. 2026
  • The front office also re-signed key interior trench pieces, keeping offensive guard Sam Cosmi locked up alongside defensive tackle Daron Payne, while adding offensive line depth with veteran additions to protect Daniels.
    David Troy OutKick, FOXNews.com, 4 Sep. 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 8 Sep. 2026.

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