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
Christopher Murray, Fox News, 13 Jan. 2025
While the boots are waterproof, the laces are not, which could compromise their performance in wet or snowy weather.
—Avery Stone, People.com, 10 Jan. 2025
Joseph Hernandez, Kansas City Star, 14 Jan. 2025
Blomberg says the balance between waterproof and breathability isn’t always clear.
—Tim Newcomb, Forbes, 12 Dec. 2024
Elisabetta Povoledo, New York Times, 1 Jan. 2025
This versatile spray dries in just 10 minutes and can be used on a wide range of fabrics, from leather to suede, to waterproof your shoes and protect them from stains.
—Merrell Readman, Travel + Leisure, 30 Dec. 2024
See all Example Sentences for waterproof 
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Adjective
Eddie Bauer currently has ski jackets on sale that are also waterproof and have a removable liner.
—Christopher Murray, Fox News, 13 Jan. 2025
While the boots are waterproof, the laces are not, which could compromise their performance in wet or snowy weather.
—Avery Stone, People.com, 10 Jan. 2025
Noun
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
Blomberg says the balance between waterproof and breathability isn’t always clear.
—Tim Newcomb, Forbes, 12 Dec. 2024
Verb
The minerals in the coins often leave marks on the product used to waterproof the basin.
—Elisabetta Povoledo, New York Times, 1 Jan. 2025
This versatile spray dries in just 10 minutes and can be used on a wide range of fabrics, from leather to suede, to waterproof your shoes and protect them from stains.
—Merrell Readman, Travel + Leisure, 30 Dec. 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 20 Jan. 2025.
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