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
This slip-on, waterproof style has a supportive insole, lightweight cushioning, and a responsive sockliner. — Katie Decker-Jacoby, StyleCaster, 7 Oct. 2026 Thoughtful extras include a handy waterproof bag for wet swimwear and the gift of a black handbook with the owner’s favorite island haunts. — Condé Nast, Condé Nast Traveler, 6 Oct. 2026
Noun
Finally, cover outlets that aren’t waterproof-rated, advises Dewey. — Louise Parks, Martha Stewart, 1 Aug. 2026 This gives you a 31% discount on a travel-friendly speaker packing a two-way speaker system, an IP67 waterproof and dustproof rating, 12 hours of battery life, and PartyBoost multispeaker syncing. — Juhi Wadia, PC Magazine, 31 July 2026 See All Example Sentences for waterproof
Recent Examples of Synonyms for waterproof
Adjective
  • Cadence capsules are magnetic, stackable, and leakproof cases to hold liquids most conveniently.
    — Nneya Richards, Travel + Leisure, 11 Oct. 2026
  • The real genius is the second lid, which turns the whole thing into a leakproof pitcher.
    — Alaina Chou, Bon Appetit Magazine, 31 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
  • Predominantly Muslim Malaysia is a staunch supporter of the Palestinian cause and has no diplomatic or direct economic ties with Israel.
    — ABC News, ABC News, 21 Oct. 2026
  • The billionaire developer lost to Bass in the 2022 election, and was a staunch critic of the mayor for her response to the 2025 Palisades fire.
    — Itzel Luna, Los Angeles Times, 20 Oct. 2026
Noun
  • Rowers pushed through a rainy and chilly start Friday morning while fans in ponchos and raincoats cheered them on.
    — Anna Meiler, CBS News, 16 Oct. 2026
  • When Waits sings about the woman’s raincoat and suitcase, Duke answers with a twinkling tumble of notes.
    — Al Shipley, SPIN, 9 Oct. 2026
Noun
  • Sharp suits and smoking jackets came alongside cocoon shapes, functional hunting jackets, double-breasted trenches and generous winter coats, with longer lengths and full collars suggesting the urban style of the 1980s and ’90s.
    — Tianwei Zhang, Footwear News, 16 Oct. 2026
  • Once summer’s squarely behind her, the royal wears a steady rotation of coat dresses, trenches, blazers, and every other type of outerwear under the sun.
    — Bailey Bujnosek, InStyle, 16 Oct. 2026
Noun
  • Founded in 1894 to outfit sailors with oilskins, Barbour remains family-owned.
    — Air Mail, Air Mail, 10 Oct. 2026
  • 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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Cite this Entry

“Waterproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/waterproof. Accessed 28 Oct. 2026.

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