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

In this family, Shigejiro seemed to be cloaked in a waterproof tarpaulin that repelled the currents of misfortune. — Cynthia Zarin, Harpers Magazine, 4 Aug. 2026 The key to most waterproof formulas are waxes or silicones, which protect the pigments from water and prevents it from breaking down. — Ariana Yaptangco, Glamour, 3 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

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

As Alice, Reynolds is the team’s staunchest protector even as Ted serves as head coach.

— Sabienna Bowman, PEOPLE, 5 Aug. 2026
Hoskins, a Republican and staunch supporter of the map, said that the Missouri Constitution does not expressly give voters the right to hold a referendum on congressional redistricting.

— Kacen Bayless, Kansas City Star, 4 Aug. 2026

Definition of staunch

Noun

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
It can be easily folded and popped into a bike basket or even fit underneath a raincoat for those sudden summer showers.

— Alexandra Pereira, Travel + Leisure, 10 July 2026

Definition of raincoat

Noun

The Stockton Fire Department said two bodies were recovered from a construction trench that collapsed on Saturday morning.

— Jose Fabian, CBS News, 9 Aug. 2026
After working for more than a decade in club music’s trenches, the brothers now aspired to be not merely DJs, but a dance-music act known for spectacular live performances.

— Will Pritchard, Pitchfork, 8 Aug. 2026

Definition of trench

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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Style

“Waterproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/waterproof. Accessed 10 Aug. 2026.

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Synonyms of waterproof

adjective

noun

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