waterproof

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

|Updated on: 16 Jun 2018

Examples: waterproof in a Sentence

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

Meek's crew caught 1800 beavers here in 1850 alone, shipping their pelts to Europe to be felted into waterproof hats.

— ben goldfarb, Science | AAAS, "Beaver dams without beavers? Artificial logjams are a popular but controversial restoration tool," 7 June 2018
Their feet aren’t built for walking, and their feathers aren’t waterproof, making swimming even more difficult.

— alex stuckey, San Antonio Express-News, "Texas State Aquarium doubles down on wildlife rescue, rehabilitation after Harvey," 3 June 2018
For now, just make sure whatever's on your lashes is waterproof — the video below, demonstrating how the old wands are used, is all but guaranteed to bring a tear to your eye.

— refinery29.com, "How Your Next Mascara Purchase Could Save An Orphaned Animal's Life," 22 May 2018
Your best bet: footwear that’s rugged, waterproof, and easy to wash off with a quick spray of the hose.

— stephanie eckelkamp, Good Housekeeping, "15 Best Gardening Boots, Clogs, And Shoes You Can Buy On Amazon," 4 Apr. 2017
There are walls, long covered in waterproof Tyvek, but no windows or finished floors.

— janet eastman, OregonLive.com, "Hollywood Video founder's unfinished riverfront mansion to be auctioned (photos)," 22 May 2018
Before the iPhone, his contacts were a black book housed in a waterproof pouch stored in a wall safe in his Cheers office.

— steve rushin, SI.com, "How the World Has Changed in the 25 Years Since the Final Cheers Episode," 22 May 2018
The water will likely be cold and waterproof boots are recommended.

— Courant Community, "Community News For The Putnam Edition," 21 May 2018
The protective coverings are made of biodegradable materials and are both reusable and waterproof.

— bree burkitt, azcentral, "Fulton Homes to give away free booties at PetSmart to protect pups from scorching concrete," 20 May 2018

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

in the meaning defined above

See Words from the same year

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waterproof Synonyms

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

Making a teepee waterproof barely requires direction, but indulge me.

— joanna saltz, House Beautiful, "Here's How To Make Your Playroom Teepee An Outdoor Playhouse," 6 June 2018
These sunproof fabrics resist fading, are waterproof, feel soft and come in lots of bright colors and patterns.

— marni jameson, OrlandoSentinel.com, "They’re coming! Part 3: Furnishing the great outdoors," 1 June 2018
Joining Yeti’s line of waterproof, noninsulated Panga duffels, the Panga Backpack 28 uses the same hefty zippers and tear-resistant, waterproof fabric.

— ariella gintzler, Outside Online, "Yeti Launches a Water Cooler and Backpack," 31 May 2018
The Soundcore Mini 2 is IPX7 waterproof and also offers 15 hours of playback on a single charge, a 66-foot Bluetooth range, and decent sound for a small, portable device.

— courtney campbell, USA TODAY, "Here are the 5 best Amazon deals you can get right now," 1 May 2018
Try a waterproof, smudge-free option like Covergirl Lashblast Volume Mascara.

— Woman's Day, "7 Fun in the Sun Essentials," 29 Aug. 2014
To find Jesse, rescuers turned to technology, hoping sophisticated waterproof cameras used to inspect the city’s drainage system would provide a glimpse of the missing boy.

— cleve r. wootson jr., Washington Post, "Rescuers find boy 12 hours after he was washed away in a ‘maze’ of drainage pipes," 2 Apr. 2018
These days, there are lots of very good $500 technical waterproof-breathable shells.

— jakob schiller, Outside Online, "Picture's Stretchy, Breathable Iceland Proknit Shell," 21 Mar. 2018
According to the brand, the formula is sweatproof, waterproof, and transfer-proof — in other words, it's designed to stay on all damn day.

— macaela mackenzie, Allure, "Cover FX's New Power Play Foundation Offers Dewy Coverage to Oily Skin Types," 14 Mar. 2018

First Known Use of waterproof

1788

in the meaning defined at sense 1

See Words from the same year

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waterproof

verb

Definition of waterproof

waterproofed; waterproofing; waterproofs

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

The coal vaults needed to be waterproofed, and the floor in the main part of the apartment had to be excavated to create higher ceilings in the dining and living rooms.

— ruth bloomfield, WSJ, "How to Live Luxe—and With Light—in a Basement Home," 13 June 2018
But before calling a basement waterproofing contractor, try other remedies.

— kevin brasler, Philly.com, "Solve a wet basement by fixing the problem, not managing it," 1 May 2018
Seam-Tape Failure Seam sealing is an amazing process used to waterproof the tiny stitch holes in a jacket.

— joe jackson, Outside Online, "How to Tell When to Retire That Rain Shell," 30 Apr. 2018
The building, built around 1920, has TV security and intercom systems, and in recent years its facade was steam-cleaned, repointed and waterproofed.

— rosalie r. radomsky, New York Times, "Recent Commercial Real Estate Transactions," 6 Feb. 2018
Kenny’s girlfriend, Sylvia Alba, helped waterproof all of his gear.

— anthony gulizia, BostonGlobe.com, "Runners went to their bag of tricks to beat the elements," 16 Apr. 2018
Crews will remove and replace the asphalt pavement, waterproofing membrane and joints on the bridge.

— joe marusak, charlotteobserver, "Iconic stretch of Blue Ridge Parkway closing for months | Charlotte Observer," 8 Feb. 2018
Stairwells and entryways need to be enlarged, flood-prone openings need to be waterproofed, ventilation plants need to be rebuilt.

— jonathan mahler, New York Times, "The Case for the Subway," 3 Jan. 2018
Construction Resources' recommendations included: Cleaning and waterproofing the masonry.

— bob sandrick, cleveland.com, "Strongsville's landmark clock tower needs repairs; city officials mum on when that might happen," 12 Dec. 2017

First Known Use of waterproof

1820

in the meaning defined above

See Words from the same year

NEW! Time Traveler

WATERPROOF Defined for English Language Learners

waterproof

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

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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waterproof

Definition of waterproof

waterproofness

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Synonyms

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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

Definition of waterproof for English Language Learners

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waterproof

Definition of waterproof for Students

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