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
Ashlyn Needham, Southern Living, 11 Dec. 2024
An online search found several companies selling Faraday containers describe them as also being waterproof.
—Michael Ruiz, Fox News, 10 Dec. 2024
Tim Newcomb, Forbes, 12 Dec. 2024
Not as breathable as other waterproof picks in round-up.
—Lisa Jhung, Outside Online, 20 Nov. 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
Outdoor speakers are not waterproof, and when left outside in the winter for too long, can damage the sound system.
—Ashlyn Needham, Southern Living, 11 Dec. 2024
An online search found several companies selling Faraday containers describe them as also being waterproof.
—Michael Ruiz, Fox News, 10 Dec. 2024
Noun
Blomberg says the balance between waterproof and breathability isn’t always clear.
—Tim Newcomb, Forbes, 12 Dec. 2024
Not as breathable as other waterproof picks in round-up.
—Lisa Jhung, Outside Online, 20 Nov. 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 22 Dec. 2024.
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