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

Relevance

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

Avoid scrubbing hard on waterproof or specialized protective coating. — Beth Ann Mayer, Parents, 17 Aug. 2026 The full-coverage formula sets to a natural matte finish and promises up to 16 hours of waterproof, sweat-, crease-, and transfer-resistant wear, so spots stay undercover. — Christa Joanna Lee, Allure, 14 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

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
With a leakproof straw lid and easy carry loop, this Hydro Flask water bottle is perfect for staying hydrated while on the go.

— BestReviews, Chicago Tribune, 19 Aug. 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

But concerns about Israel’s ability and willingness to rein in the settlers remain even among evangelicals, who are among the staunchest Christian supporters of Israel.

— ABC News, ABC News, 14 Aug. 2026
Supreme Court wants swift action Hoskins, a staunch supporter of the map, has boasted about the case on social media.

— Kacen Bayless, Kansas City Star, 14 Aug. 2026

Definition of staunch

Noun

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
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

Definition of raincoat

Noun

Last night, Gerber continued her love affair with the do-everything, go-anywhere little black dress, wearing a knee-length slip beneath an oversized khaki trench.

— Hannah Jackson, Vogue, 14 Aug. 2026
Both sides have consequently dug legal and PR trenches to snipe at the other and rally endorsements.

— Dominic Patten, Deadline, 14 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

See all Nearby Words

Cite this Entry

Style

“Waterproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/waterproof. Accessed 23 Aug. 2026.

Copy Citation

Synonyms of waterproof

adjective

noun

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster on waterproof

More from Merriam-Webster

Word of the Day

prowess

Popular in Grammar & Usage

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

How to Pronounce the Trickiest Menu Items

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Do you 'say your piece' or 'say your peace'?

Why is '-ed' sometimes pronounced at the end of a word?

Popular in Wordplay

Words from the 'Odyssey'

The Longest Long Words List

Even More Words That Sound Like Insults But Aren't

The Words of the Week - Aug. 21

12 Lovely and Unusual Words for the Natural World

Popular

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Words from the 'Odyssey'

The Longest Long Words List

Games & Quizzes