rain·​proof ˈrān-ˌprüf How to pronounce rainproof (audio)
: impervious to rain

Example Sentences

Recent Examples on the Web The Elite 4 also carries an IP55 rainproof rating, while the Active is an IP57 dust, water, and sweatproof rating. John Thompson, menshealth.com, 5 Apr. 2023 Like the name suggests, all items are rainproof. Kristen Bateman, refinery29.com, 20 Aug. 2021 This Under Armour best-seller is rainproof and has HeatGear shoulder straps for extra comfort. Sabrina Talbert, Women's Health, 21 Mar. 2023 The rainfly is made of rainproof, UV-resistant polyester oxford fabric whose hallmark is good looks and durability. Chris Dorsey, Forbes, 28 June 2022 Centre Court is now rainproof with its retractable, accordion-style roof that was put to good use for Djokovic’s and Kwon’s duel. New York Times, 27 June 2022 The formula is rainproof for two hours upon drying. Chris Hachey, BGR, 23 June 2021 This rainproof jacket is the perfect layer for milder winter days. Lauren Caruso, CNN Underscored, 10 Mar. 2021 For warm days, the lightest rainproof jacket that keeps rain out, wicks moisture away from your torso and arms and is breathable is your very best bet. The Editors, Field & Stream, 17 Sep. 2019 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'rainproof.' 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

1668, in the meaning defined above

Time Traveler
The first known use of rainproof was in 1668

Dictionary Entries Near rainproof

Cite this Entry

“Rainproof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rainproof. Accessed 4 Jun. 2023.

Kids Definition


rain·​proof -ˈprüf How to pronounce rainproof (audio)
: keeping rain out

More from Merriam-Webster on rainproof

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