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
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
Scott Gilbertson, Wired News, 12 May 2025
The lights are made from a type of waterproof and corrosion-resistant plastic that can last multiple seasons, even through harsh Southern temperatures and seasonal weather conditions.
—Alicia Geigel, Southern Living, 9 May 2025
Kiana Murden, Vogue, 12 May 2025
This compact kit includes a mix of waterproof, antibacterial, and flexible bandages to cover whatever comes your way.
—Rosie Marder, Travel + Leisure, 9 May 2025
Timothy Dale, Better Homes & Gardens, 14 May 2025
Ducks, for instance, scoop up the oily secretion from the preen gland and spread it over their feathers to waterproof them.
—Gabe Allen, Discover Magazine, 20 Feb. 2025
See All Example Sentences for waterproof
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Adjective
GoPro Max for $822: GoPro's entry into the 360 camera world, the Max is a capable action camera, featuring 6K video in a waterproof form factor with industry-leading stabilization.
—Scott Gilbertson, Wired News, 12 May 2025
The lights are made from a type of waterproof and corrosion-resistant plastic that can last multiple seasons, even through harsh Southern temperatures and seasonal weather conditions.
—Alicia Geigel, Southern Living, 9 May 2025
Noun
The waterproof, kôhl pencil is beloved for its versatility, offering a few seconds of playtime before drying down.
—Kiana Murden, Vogue, 12 May 2025
This compact kit includes a mix of waterproof, antibacterial, and flexible bandages to cover whatever comes your way.
—Rosie Marder, Travel + Leisure, 9 May 2025
Verb
Patch the plumbing or the home's structure to stop active leaks and waterproof the foundation and regrade the yard to prevent minor flooding.
—Timothy Dale, Better Homes & Gardens, 14 May 2025
Ducks, for instance, scoop up the oily secretion from the preen gland and spread it over their feathers to waterproof them.
—Gabe Allen, Discover Magazine, 20 Feb. 2025
See All Example Sentences for waterproof
Cite this Entry
“Waterproof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/waterproof. Accessed 19 May. 2025.
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