waterproof

1 of 3

adjective

wa·​ter·​proof ˈwȯ-tər-ˌprüf How to pronounce waterproof (audio)
ˈwä-
: impervious to water
especially : covered or treated with a material (such as a solution of rubber) to prevent permeation by water
waterproofness noun

waterproof

2 of 3

noun

1
: a waterproof fabric
2
chiefly British : raincoat

waterproof

3 of 3

verb

waterproofed; waterproofing; waterproofs

transitive verb

: 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
Adjective
For someone who prefers listening to music, podcasts, and audiobooks without headphones, this JBL Bluetooth speaker has powerful, deep bass, a grip handle for easy portability, 24 hours of playtime, and a waterproof design. Mia Huelsbeck, People.com, 3 Oct. 2024 Glazer says this mattifying, waterproof setting spray is a staple for its staying power—up to 16 hours worth. Jennifer Hussein, Allure, 3 Oct. 2024
Noun
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 The eight-piece collection comes with chairs, a loveseat, sofa, and a table, plus waterproof covers for everything. Blake Bakkila, Architectural Digest, 17 July 2024
Verb
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 Female oil-collecting bees, for example, mix plant oils (instead of nectar) with pollen to nourish their young and ingeniously use these oils to waterproof their nests. Melissa Rae Sanger, The Mercury News, 27 June 2024 See all Example Sentences for waterproof 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'waterproof.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

Adjective

1725, in the meaning defined above

Noun

1788, in the meaning defined at sense 1

Verb

1820, in the meaning defined above

Time Traveler
The first known use of waterproof was in 1725

Dictionary Entries Near waterproof

Cite this Entry

“Waterproof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/waterproof. Accessed 6 Oct. 2024.

Kids Definition

waterproof

1 of 3 adjective
wa·​ter·​proof -ˌprüf How to pronounce waterproof (audio)
: not letting water through
especially : covered or treated with a material to prevent penetration by water

waterproof

2 of 3 noun
chiefly British

waterproof

3 of 3 verb
: to make waterproof

More from Merriam-Webster on waterproof

Last Updated: - Updated example sentences
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