WATERPROOF Synonyms: 27 Similar and Opposite Words

waterproof 1 of 2

adjective

ˈwȯ-tər-ˌprüf

Definition of waterproof

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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Antonyms & Near Antonyms

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

Synonyms & Similar Words

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

Look for airtight and waterproof containers or safes to protect your most important documents from moisture damage, mildew, mold, warping, or wrinkling. — Karen Brewer Grossman, Southern Living, 29 June 2026 Fujifilm says the QuickSnap Active is replacing its current waterproof QuickSnap model, which is still available to buy at retailers like Walmart and Target. — Jess Weatherbed, The Verge, 1 July 2026

Noun

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 Instead, go for stylish, waterproof (or water-resistant) sandals that can seamlessly transition from the pool to lunch, sightseeing, or riding bikes. — Lydia Mansel, Travel + Leisure, 11 Mar. 2026 See All Example Sentences for waterproof

Recent Examples of Synonyms for waterproof

Adjective

Each leakproof food storage container and bowl in this 24-piece set comes with an airtight lid and is made from BPA-free glass.

— Stephanie Osmanski, Better Homes & Gardens, 25 June 2026
This version also comes with a straw cap, which, when closed, is leakproof and shatter-resistant.

— Lydia Mansel, Travel + Leisure, 16 June 2026

Definition of leakproof

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

Definition of slicker

Adjective

Lithuania, which borders the Russian exclave of Kaliningrad, has been one of Ukraine's staunchest allies during Russian President Vladimir Putin's more than four-year conflict with Kyiv, providing extensive military equipment and financial support.

— Sam Meredith, CNBC, 2 July 2026
Margo, a staunch Conservative neighbor of the couple, was disapproving of the pair’s decisions, and Keith’s performance would win her the 1977 BAFTA TV Award for best light entertainment.

— Lily Ford, HollywoodReporter, 29 June 2026

Definition of staunch

Noun

When shopping for a raincoat, consider one that's transparent or sheer to better show off your dress underneath.

— Amber Rambharose, InStyle, 29 June 2026
People also moved quickly to capitalize on the weather, riding bicycles through the area while selling raincoats and ponchos to fans caught outside before conditions began to clear.

— Tyler Carmona, Miami Herald, 24 June 2026

Definition of raincoat

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

Definition of oilskin

Browse Nearby Words

water nymphs

waterproof

waterproofed

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“Waterproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/waterproof. Accessed 7 Jul. 2026.

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Synonyms of waterproof

adjective

noun

Example Sentences

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