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
PCMAG, 7 Nov. 2024
All-weather, tear-resistant, waterproof, and moisture-wicking hiking pants that are still functional, comfortable, and easy to move in.
—Michelle Tchea, Travel + Leisure, 5 Nov. 2024
Emily Pennington, Outside Online, 18 Oct. 2024
Our panel of testers also assessed special features in waterproof and curling mascaras to select the best options in each formula category.
—Olivia Cigliano, WWD, 26 July 2024
Claire Hoppe Norgaard, Better Homes & Gardens, 9 Oct. 2024
The tent had been waterproofed with a mixture of 6,000 gallons of gasoline and and 1,800 pounds of paraffin wax.
—Ed Stannard, Hartford Courant, 6 July 2024
See all Example Sentences for waterproof 
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Adjective
Further, the speaker lacks an IP rating and is not waterproof.
—PCMAG, 7 Nov. 2024
All-weather, tear-resistant, waterproof, and moisture-wicking hiking pants that are still functional, comfortable, and easy to move in.
—Michelle Tchea, Travel + Leisure, 5 Nov. 2024
Noun
On top of all that, these boots are equipped with the same waterproof, breathable membrane that the company’s adult shoes are lined with, to help keep feet dry in rainstorms and during mellow stream crossings.
—Emily Pennington, Outside Online, 18 Oct. 2024
Our panel of testers also assessed special features in waterproof and curling mascaras to select the best options in each formula category.
—Olivia Cigliano, WWD, 26 July 2024
Verb
Similar to waterproofing other types of shoes, apply a layer of softened beeswax to clean leather shoes.
—Claire Hoppe Norgaard, Better Homes & Gardens, 9 Oct. 2024
The tent had been waterproofed with a mixture of 6,000 gallons of gasoline and and 1,800 pounds of paraffin wax.
—Ed Stannard, Hartford Courant, 6 July 2024
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 21 Nov. 2024.
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