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
Chaunie Brusie, Rn, Parents, 23 Jan. 2025
Studies have detected the harmful compounds in a plethora of everyday objects, from popular nonstick pans to waterproof clothing and just about anything in between.
—Mack Degeurin, Popular Science, 23 Jan. 2025
Clara McMahon, People.com, 23 Jan. 2025
Shoes: Uggs or other furry boots might keep your toes warm, but other shoe options that are insulated and waterproof might be your best bet.
—Joseph Hernandez, Kansas City Star, 14 Jan. 2025
Justin Davidson, Curbed, 17 Jan. 2025
These sealers are especially effective at waterproofing the grout, which is why they are recommended for high-moisture areas.
—Timothy Dale, Better Homes & Gardens, 16 Jan. 2025
See all Example Sentences for waterproof 
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Adjective
Testing under running water revealed that the muff is fully waterproof, and machine washing did not impact the look, feel, or appearance in any way.
—Chaunie Brusie, Rn, Parents, 23 Jan. 2025
Studies have detected the harmful compounds in a plethora of everyday objects, from popular nonstick pans to waterproof clothing and just about anything in between.
—Mack Degeurin, Popular Science, 23 Jan. 2025
Noun
Plus, it’s made from durable brass that’s covered in 14-carat gold plating that’s hypoallergenic, waterproof, and tarnish-resistant, according to the brand.
—Clara McMahon, People.com, 23 Jan. 2025
Shoes: Uggs or other furry boots might keep your toes warm, but other shoe options that are insulated and waterproof might be your best bet.
—Joseph Hernandez, Kansas City Star, 14 Jan. 2025
Verb
They can be waterproofed with plaster, reinforced to withstand earthquakes and hurricanes, and manufactured on a vast scale with minimal environmental damage.
—Justin Davidson, Curbed, 17 Jan. 2025
These sealers are especially effective at waterproofing the grout, which is why they are recommended for high-moisture areas.
—Timothy Dale, Better Homes & Gardens, 16 Jan. 2025
See all Example Sentences for waterproof
Dictionary Entries Near waterproof
Cite this Entry
“Waterproof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/waterproof. Accessed 30 Jan. 2025.
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