wa·ter·proof
ˈwȯ-tər-ˌprüf 
ˈwä-
: impervious to water
especially
: covered or treated with a material (such as a solution of rubber) to prevent permeation by water
waterproofness
noun
waterproofed; waterproofing; waterproofs
: to make waterproof
waterproofer
noun
Synonyms
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
Rebecca Shinners, Travel + Leisure, 19 Apr. 2024
Please wear clean waterproof boots, bring a headlamp or flashlight and a sanitized dipping net.
—Karl Schneider, The Indianapolis Star, 18 Apr. 2024
It’s made from a waterproof, microfiber fabric that is easy to clean and use for camping.
—Paige Bennett, Better Homes & Gardens, 12 Apr. 2024
This waterproof mattress pad is quilted, with polyester filling on both sides of a waterproof middle layer, making mattresses more comfortable.
—Kelsey Kunik, Parents, 10 Apr. 2024
The seven-inch Kobo Libra 2 is my favorite e-reader outside of Amazon’s ecosystem, offering the Kindle Paperwhite’s IPX8 waterproof design but with extras like physical page-turning buttons, no lockscreen ads, and more storage.
—Sheena Vasani, The Verge, 10 Apr. 2024
The affordable collaboration did not forfeit quality–the pieces are waterproof, hypoallergenic, anti-tarnish, and e-coated for long-lasting wear.
—Kerane Marcellus, Essence, 4 Apr. 2024
That said, Rolex was the first to put a waterproof and dustproof model into widespread production.
—The Editors, Robb Report, 28 Mar. 2024
These waterproof walking shoes are an ideal companion for springtime strolls.
—Clara McMahon, Peoplemag, 6 Apr. 2024
Jessica MacDonald, Travel + Leisure, 22 Mar. 2024
Made of waterproof and durable polyester, the pack has mesh on the backside for breathability.
—Alesandra Dubin, Travel + Leisure, 13 Mar. 2024
Boasting two ultra-wide lenses, the waterproof Insta360 X3 is the perfect action camera for capturing high-quality 360 HDR video footage.
—Cierra Cowan, PCMAG, 1 Feb. 2024
And using AirTags just got even easier thanks to these convenient waterproof AirTag covers that banish the risk of spills, sweat, rain, and water.
—Chaunie Brusie, Travel + Leisure, 18 Apr. 2023
Get more mileage from your favorite cleanser with the waterproof, shower-friendly PMD Clean Facial Cleansing Device, which deploys over 7,000 vibrations per minute to ensure a deeper, more satisfying cleanse.
—Jennifer Hussein, Allure, 26 Oct. 2023
The mortar of China’s Great Wall and Forbidden City was made with starch and sticky rice, while the Roman architect Vitruvius, in his book De Architectura, recommends cooking oil as a means to make lime waterproof.
—Tim Brinkhof, Discover Magazine, 15 Nov. 2023
Footwear from the collaborative collection includes the UGG Classic Ultra Mini silhouette ($325), a waterproof take on the shoemaker’s popular Tasman X clog ($195), and two outdoor slides that were inspired by signature UGG slippers that feature embroidery and patchworked sheepskin.
—Demetrius Simms, Robb Report, 13 Oct. 2023
This is combined with Carhartt’s Storm Defender waterproof and breathable membrane to provide extreme protection against mud and water.
—Bob Beacham, Field & Stream, 1 Nov. 2023
Paul Smaglik, Discover Magazine, 20 Mar. 2024
Burners were more focused on waterproofing their tents, music equipment and art cars with trash bags and tarps, securing them with bungee cords to hold items that can fly away.
—Asli Pelit, Rolling Stone, 4 Sep. 2023
Additional restoration scheduled for later this spring will include waterproofing the fountain base — and, alas, shutting the fountain off again for about six weeks.
—Justin Wm. Moyer, Washington Post, 14 Aug. 2017
As Amazon’s best-selling hairspray, this award-winning product acts as a heat protectant and waterproofs your hair, and its effects last through three to four shampoos.
—Claire Harmeyer, Peoplemag, 12 July 2023
Simply waterproofing the church wouldn’t be enough.
—John Kelly, Washington Post, 24 Apr. 2023
Since gelatin is water-soluble, scientists treated the mittens with an epoxy resin, formaldehyde and wool grease, or lanolin, to waterproof the mittens without diminishing their flexibility.
—Carl Engelking, Discover Magazine, 29 July 2015
The researchers suggest Romans used the jars for both red and white winemaking and the pine residue found was part of the tar that helped to seal and waterproof the amphorae.
—Monica Cull, Discover Magazine, 29 June 2022
To waterproof the stall, white ceramic subway tile over cement board runs floor to ceiling and wraps the edges of the window recess.
—Kit Selzer, Better Homes & Gardens, 8 Sep. 2022
Adjective
From comfortable shoes to a waterproof phone case, here are 17 cruise essentials in my Amazon cart that would come in handy on your next trip, too.
—Rebecca Shinners, Travel + Leisure, 19 Apr. 2024
Please wear clean waterproof boots, bring a headlamp or flashlight and a sanitized dipping net.
—Karl Schneider, The Indianapolis Star, 18 Apr. 2024
It’s made from a waterproof, microfiber fabric that is easy to clean and use for camping.
—Paige Bennett, Better Homes & Gardens, 12 Apr. 2024
This waterproof mattress pad is quilted, with polyester filling on both sides of a waterproof middle layer, making mattresses more comfortable.
—Kelsey Kunik, Parents, 10 Apr. 2024
The seven-inch Kobo Libra 2 is my favorite e-reader outside of Amazon’s ecosystem, offering the Kindle Paperwhite’s IPX8 waterproof design but with extras like physical page-turning buttons, no lockscreen ads, and more storage.
—Sheena Vasani, The Verge, 10 Apr. 2024
The affordable collaboration did not forfeit quality–the pieces are waterproof, hypoallergenic, anti-tarnish, and e-coated for long-lasting wear.
—Kerane Marcellus, Essence, 4 Apr. 2024
That said, Rolex was the first to put a waterproof and dustproof model into widespread production.
—The Editors, Robb Report, 28 Mar. 2024
These waterproof walking shoes are an ideal companion for springtime strolls.
—Clara McMahon, Peoplemag, 6 Apr. 2024
Noun
On rainy days, make sure your top layer is water-resistant (for short hikes in light rain) or waterproof (for extended hikes in heavy rain).
—Jessica MacDonald, Travel + Leisure, 22 Mar. 2024
Made of waterproof and durable polyester, the pack has mesh on the backside for breathability.
—Alesandra Dubin, Travel + Leisure, 13 Mar. 2024
Boasting two ultra-wide lenses, the waterproof Insta360 X3 is the perfect action camera for capturing high-quality 360 HDR video footage.
—Cierra Cowan, PCMAG, 1 Feb. 2024
And using AirTags just got even easier thanks to these convenient waterproof AirTag covers that banish the risk of spills, sweat, rain, and water.
—Chaunie Brusie, Travel + Leisure, 18 Apr. 2023
Get more mileage from your favorite cleanser with the waterproof, shower-friendly PMD Clean Facial Cleansing Device, which deploys over 7,000 vibrations per minute to ensure a deeper, more satisfying cleanse.
—Jennifer Hussein, Allure, 26 Oct. 2023
The mortar of China’s Great Wall and Forbidden City was made with starch and sticky rice, while the Roman architect Vitruvius, in his book De Architectura, recommends cooking oil as a means to make lime waterproof.
—Tim Brinkhof, Discover Magazine, 15 Nov. 2023
Footwear from the collaborative collection includes the UGG Classic Ultra Mini silhouette ($325), a waterproof take on the shoemaker’s popular Tasman X clog ($195), and two outdoor slides that were inspired by signature UGG slippers that feature embroidery and patchworked sheepskin.
—Demetrius Simms, Robb Report, 13 Oct. 2023
This is combined with Carhartt’s Storm Defender waterproof and breathable membrane to provide extreme protection against mud and water.
—Bob Beacham, Field & Stream, 1 Nov. 2023
Verb
The roundhouse roofs were insulated with straw, topped by turf, and waterproofed with clay.
—Paul Smaglik, Discover Magazine, 20 Mar. 2024
Burners were more focused on waterproofing their tents, music equipment and art cars with trash bags and tarps, securing them with bungee cords to hold items that can fly away.
—Asli Pelit, Rolling Stone, 4 Sep. 2023
Additional restoration scheduled for later this spring will include waterproofing the fountain base — and, alas, shutting the fountain off again for about six weeks.
—Justin Wm. Moyer, Washington Post, 14 Aug. 2017
As Amazon’s best-selling hairspray, this award-winning product acts as a heat protectant and waterproofs your hair, and its effects last through three to four shampoos.
—Claire Harmeyer, Peoplemag, 12 July 2023
Simply waterproofing the church wouldn’t be enough.
—John Kelly, Washington Post, 24 Apr. 2023
Since gelatin is water-soluble, scientists treated the mittens with an epoxy resin, formaldehyde and wool grease, or lanolin, to waterproof the mittens without diminishing their flexibility.
—Carl Engelking, Discover Magazine, 29 July 2015
The researchers suggest Romans used the jars for both red and white winemaking and the pine residue found was part of the tar that helped to seal and waterproof the amphorae.
—Monica Cull, Discover Magazine, 29 June 2022
To waterproof the stall, white ceramic subway tile over cement board runs floor to ceiling and wraps the edges of the window recess.
—Kit Selzer, Better Homes & Gardens, 8 Sep. 2022
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'waterproof.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near waterproof
Cite this Entry
“Waterproof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/waterproof. Accessed 24 Apr. 2024.
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