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

Synonyms & Similar Words

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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

Like the Plex Solo Classic, the Pro features a hybrid single/double-wall construction with the inner front front mesh sewn directly to the Dyneema waterproof body that makes up the rest of the exterior. — New Atlas, 18 July 2026 Post reporters visited the Reflecting Pool on June 25 and identified seven locations where the lining — a waterproof membrane that was painted onto the concrete basin — had partially or entirely peeled away. — Maura Judkis, Washington Post, 16 July 2026

Noun

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 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

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

The Northwest Indiana Forum has been a staunch supporter of data centers, but that didn’t color the study’s findings, Ross said.

— Doug Ross, Chicago Tribune, 26 July 2026
Jones, in the first major race of his political career, faces a staunch challenge in Thompson, who has held the seat for 30 years and glided into the general election with almost 41% of the vote.

— Evelyn Ronan, Sacbee.com, 22 July 2026

Definition of staunch

Noun

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
At the same time, Miles starts to notice a presence in his pictures, a woman in a raincoat (Kate Dickie) staring intently into the camera.

— Damon Wise, Deadline, 6 July 2026

Definition of raincoat

Noun

The modest trench that once plagued the Galaxy Z Fold series' inner display is virtually gone.

— Kimberly Gedeon, PC Magazine, 23 July 2026
Crews have welded in new steel pipe, tested for leaks and begun preparing the 25-foot-deep trench for backfilling, concrete slurry, asphalt and water-quality checks before traffic can return.

— Hannah Fry, Los Angeles Times, 21 July 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 27 Jul. 2026.

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Synonyms of waterproof

adjective

noun

Example Sentences

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