waterproof

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adjective wa·ter·proof \ ˈwȯ-tər-ˌprüf , ˈwä- \

Definition of waterproof

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

—

waterproofness

noun

See waterproof defined for English-language learners

See waterproof defined for kids

Examples of waterproof in a Sentence

This suntan lotion is waterproof.
luckily, my backpack is waterproof, so my clothes didn't get wet

Recent Examples of waterproof from the Web

Try: Neutrogena Hydrating Makeup Remover Cleansing Towelettes, which remove all traces of makeup (even your waterproof cat eye) in a few swipes — no rinsing required.

— nicole catanese, Cosmopolitan, "The 8 Most Annoying Skin Problems Every Girl Deals With," 24 Aug. 2017
Repeat with several more pieces of foil to create a waterproof seal around the bottom and up the sides of the pan.

— Bon Appetit, "Ricotta Pie with Amarena Cherries," 15 Aug. 2017
An activity key – actually a waterproof wrist band, $400 – will lock and unlock the Discovery, allowing the wearer to leave the key fob safely locked, and inactivated, inside the vehicle while enjoying a range of activities, including swimming.

— emma jayne williams, star-telegram, "Land Rover updates the Discovery for 2017, moving into fifth generation," 11 Aug. 2017
A black waterproof rubber strap makes the watch perfect for the great outdoors, and the whole affair is water resistant up to 990 feet.

— stephen watson, Esquire, "Filson's New Watch Is an Ode to the American Wilderness," 4 Aug. 2017
Updates to the design include power steering, USB outlets and a stereo system, which — like the seats and rest of the car — is waterproof.

— andrea januta, miamiherald, "Cult classic Moke car returns to Miami," 25 July 2017
The bands, which are waterproof and have batteries that last about 60 days, emit a radio frequency that can be picked up to locate someone who's lost, Dziedzinski said.

— amy lavalley, Post-Tribune, "Dog, technology in dead heat to find 'missing' officials," 18 July 2017
Like waterproof protection from your own disgusting perspiration.

— dayna evans, The Cut, "The Working Woman’s Guide to Commuting by Bike in the Swampy Heat of Summer," 18 July 2017
The Westside store caters to the recreationalist and the weekend explorer, stocking specific supplies for short-but- sweet trips (waterproof luggage, kitchen wares, try-it- before-you- buy-it rental gear).

— marielle wakim, Los Angeles Magazine, "Best of LA: 92 of Our Favorite Things to Eat, Do, and Buy Right Now," 14 July 2017

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.

First Known Use of waterproof

1725

waterproof Synonyms

Synonyms

leakproof, waterproofed

Related Words

rainproof; water-repellent, water-resistant; staunch (also stanch), watertight; nonabsorbent, nonporous; weatherproof

Near Antonyms

absorbent, porous; leaky

waterproof

noun

Definition of waterproof

1 :a waterproof fabric

2 chiefly British :raincoat

See waterproof defined for English-language learners

Examples of waterproof in a Sentence

remember your waterproof if you're walking around London in the winter

Recent Examples of waterproof from the Web

Her hair still dripping from swim class, Alexandra Camarena scanned the piano before peeling away its dusty waterproof tarp.

— nereida moreno, chicagotribune.com, "Piano is an outdoor instrument at six Chicago parks," 21 July 2017
Dominion had initially proposed leaving the ash in place but covering it with a waterproof, synthetic layer, plus two additional feet of soil and vegetation.

— sarah rankin, The Seattle Times, "Judge orders tests, new plan for leaking coal-ash site," 17 July 2017
Dominion had initially proposed leaving the ash in place but covering it with a waterproof, synthetic layer, plus two additional feet of soil and vegetation.

— Washington Post, "Judge orders tests, new plan for leaking coal ash site," 17 July 2017
This silicone massager is rechargeable, waterproof, and ideal for stimulating nipples and clit.

— hayley macmillen, Allure, "9 of the Best Sex Toys You Can Get With Amazon Prime," 10 July 2017
The park even has a first-of-its-kind waterproof wheelchair powered by compressed air.

— omar villafranca, CBS News, "Father creates special water park named after his daughter," 6 July 2017
Google didn't make last year's Pixel smartphone waterproof, but the Lifeproof Fre Series Waterproof Case will do the job that Google's engineers couldn't for a little over $50.

— david nield, Popular Mechanics, "5 Ways to Upgrade Your Aging Smartphone," 3 July 2017
These rear located fingerprint unlock buttons require an additional hole in the back casing, which complicates making the device waterproof, said Madhavapeddy.

— mike freeman, sandiegouniontribune.com, "Qualcomm's new fingerprint sensors go through metal, glass and work underwater, too," 29 June 2017
One cruise line has heard your troubles, however, and in kind, developed a solution: waterproof Snapchat Spectacles.

— ryan craggs, CNT, "Royal Caribbean's New 'SeaSeeker' Goggles Let You Take Underwater Snapchats," 26 June 2017

First Known Use of waterproof

1788

waterproof Synonyms

Synonyms

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

Related Words

rain gear, rainwear; poncho, sou'wester, trench, trench coat

waterproof

verb

Definition of waterproof

transitive verb

:to make waterproof

—

waterproofer

noun

See waterproof defined for English-language learners

Examples of waterproof in a Sentence

He waterproofed the deck by applying sealer to it.

Recent Examples of waterproof from the Web

Her first big projects were to waterproof the basement and then replace all the doors and windows, as the home was drafty.

— joanne kempinger demski, Milwaukee Journal Sentinel, "Sunny yellow farmhouse with lush gardens oozes with charm," 22 June 2017
The vault managers are now taking precautions, including major work to waterproof the 100m-long tunnel into the mountain and digging trenches into the mountainside to channel meltwater and rain away.

— damian carrington, WIRED, "The Arctic Doomsday Seed Vault Flooded. Thanks, Global Warming," 19 May 2017
Native Americans used globs of asphalt that accumulated naturally above ground to seal and waterproof the wooden planks of their boats.

— louis sahagun, latimes.com, "Santa Barbarans are angered by Trump's order that could lead to new offshore drilling," 29 Apr. 2017
Strips of RediTape can waterproof a bandaged area, provide extra insulation wrapped around boots — especially the toes — and, heaven forbid, secure a splint.

— judi dash, The Denver Post, "Travel gear: Redi-Tape is the fix-all you can take with you," 8 Feb. 2017

First Known Use of waterproof

1820

WATERPROOF Defined for English Language Learners

waterproof

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adjective

Definition of waterproof for English Language Learners

: designed to prevent water from entering or passing through
: designed so that water alone will not remove it

waterproof

verb

Definition of waterproof for English Language Learners

: to put a substance on (something) in order to make it waterproof

WATERPROOF Defined for Kids

waterproof

play

adjective wa·ter·proof \ ˌwȯ-tər-ˈprüf , ˌwä- \

Definition of waterproof for Students

:not letting water through

a waterproof tent

waterproof

verb

Definition of waterproof for Students

waterproofed; waterproofing

:to make something resistant to letting water through

Learn More about waterproof

See words that rhyme with waterproof Thesaurus: All synonyms and antonyms for waterproof Spanish Central: Translation of waterproof Nglish: Translation of waterproof for Spanish speakers Britannica English: Translation of waterproof for Arabic speakers

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Definition of waterproof

waterproofness

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waterproof

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waterproof

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waterproofer

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WATERPROOF Defined for English Language Learners

waterproof

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waterproof

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waterproof

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waterproof

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