waterproof

adjective

Save Word

wa·ter·proof | \ ˈwȯ-tər-ˌprüf

, ˈwä- \

Definition of waterproof

(Entry 1 of 3)

: impervious to water especially : covered or treated with a material (such as a solution of rubber) to prevent permeation by water

waterproof

noun

Definition of waterproof (Entry 2 of 3)

1 : a waterproof fabric

2 chiefly British : raincoat

waterproof

verb

waterproofed; waterproofing; waterproofs

Definition of waterproof (Entry 3 of 3)

transitive verb

: to make waterproof

Other Words from waterproof Synonyms Example Sentences Learn More About waterproof

Keep scrolling for more

Synonyms for waterproof

Synonyms: Adjective

Synonyms: Noun

mac
(or mack)
[British],
mackintosh
(also macintosh)
[chiefly British],
oilskin,
raincoat,
slicker

Examples of waterproof in a Sentence

Adjective This suntan lotion is waterproof. luckily, my backpack is waterproof, so my clothes didn't get wet Noun remember your waterproof if you're walking around London in the winter Verb He waterproofed the deck by applying sealer to it.

Recent Examples on the Web: Adjective Because the battery packs are not waterproof, keep these lights inside or an area where the battery is shielded from precipitation. — Carly Totten, Better Homes & Gardens, 29 Sep. 2021 Designed by Halsey themselves, the limited edition purple cosmetics bag is waterproof, and foldable. — Rania Aniftos, Billboard, 14 Sep. 2021 Like other Timex watches, the Weekender is waterproof, but only up to 100 feet, so no swimming or diving, but splashes, a quick dish wash, or any relatively short immersion won’t be an issue. — Chris Hachey, BGR, 20 Aug. 2021 Lightweight, waterproof hiking boots are recommended for the canyon's sandy and wet trails, which can be slippery. — Mary Caldwell, ajc, 6 Sep. 2021 Available in 48 colors and patterns, these Birkenstock-like sandals are made from soft EVA foam that's completely waterproof and washable. — Eden Lichterman, PEOPLE.com, 10 Aug. 2021 Protective masks, rubber gloves, and waterproof boots that are only dedicated to flood cleanup protect you from bacteria when entering the floodwater. Bleach. — Minnah Arshad, Detroit Free Press, 15 July 2021 At the very least, your watch should be completely waterproof, ideally up to several meters. — Lizzy Briskin, chicagotribune.com, 9 Apr. 2021 These rugged waterproof boots can cope with all sorts of weather but also look stylish enough for a dinner date. — Fiona Tapp, CNN Underscored, 26 Feb. 2021 Recent Examples on the Web: Noun That includes a 13-inch waterproof iPad that replaces the regular instrumentation, along with a dedicated slot for charging smartphones and a high-end stereo by Fusion. — Rachel Cormack, Robb Report, 6 Oct. 2021 Always keep your camera in a waterproof, zip-top bag. — Washington Post, 26 July 2021 In terms of making any eye shadow waterproof, though, swimmers have a favorite product for that, too. — Olivia Muenter, Allure, 25 July 2021 This waterproof, Bluetooth-compatible pick had Amazon shoppers raving over its handy sound booster, which can be used to amplify its bass. — Melissa Lee, USA TODAY, 1 Apr. 2021 The handset is rated IP68 and IP69 for sand, dust, and dirt resistance and waterproof to 5 feet for 35 minutes. — Chris Smith, BGR, 1 Apr. 2021 And high-quality winter hiking boots are also pretty darn waterproof. — Outdoor Life, 22 Feb. 2021 Its shell is made from a heavy waterproof, windproof, breathable material with four-way stretch. — The Popular Mechanics Editors, Popular Mechanics, 29 Dec. 2020 Like the bibs, this outer layer has a 100 percent waterproof, windproof, and breathable exterior and heavy-duty zippers. — Ben Romans, Outdoor Life, 18 Nov. 2020 Recent Examples on the Web: Verb The sealant was being used to waterproof the roof and had to be spread across the entire membrane, not just applied to seams. — Washington Post, 26 Aug. 2021 The sealant was being used to waterproof the roof and had to be spread across the entire membrane, not just applied to seams. — Washington Post, 26 Aug. 2021 The sealant was being used to waterproof the roof and had to be spread across the entire membrane, not just applied to seams. — Washington Post, 26 Aug. 2021 The sealant was being used to waterproof the roof and had to be spread across the entire membrane, not just applied to seams. — Washington Post, 26 Aug. 2021 The sealant was being used to waterproof the roof and had to be spread across the entire membrane, not just applied to seams. — Mary Carole Mccauley, baltimoresun.com, 23 Aug. 2021 The Chrono-Max is also dust- and sweat-resistant, and waterproof up to 1 meter of brief immersion. — Ashley Hughes, Chron, 23 June 2021 Compatible with both the Peloton bike and app, not to mention iPhones and Androids and more than 50 fitness apps, the hand-washable strap and sensor are ultra-lightweight and waterproof up to 5 feet. — Courtney Thompson, CNN Underscored, 13 Aug. 2020 William Drsek, the city’s public works commissioner, told the committee in a memo that the lowest bid from among three contractors for waterproofing the basement was $23,450. — Ed Wittenberg, cleveland, 7 Apr. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'waterproof.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.