waterproof

[ waw-ter-proof, wot-er- ]

See synonyms for: waterproof waterproofed waterproofing waterproofs on Thesaurus.com

adjective

impervious to water.
rendered impervious to water by some special process, as coating or treating with rubber: a waterproof hat.

noun

Chiefly British. a raincoat or other outer coat impervious to water.
any of several coated or rubberized fabrics that are impervious to water.

verb (used with object)

to make waterproof.

Origin of waterproof

First recorded in 1730–40; water + -proof

Other words from waterproof

wa·ter·proof·er, noun
wa·ter·proof·ness, noun

Words Nearby waterproof

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use waterproof in a sentence

Keep in mind, this model is less water-resistant than others, so if you foresee rain during an all-day hunt, look for something that is guaranteed waterproof.
Best hand warmers: Block the chill during your favorite winter activities | PopSci Commerce Team | February 10, 2021 | Popular-Science
The best heated vests for women will also be waterproof, machine washable, and have batteries that can handle hours of runtime.
Best heated vest: Beat the cold weather with the right winter gear | PopSci Commerce Team | February 9, 2021 | Popular-Science
If you opt for the mitten route when performing snow sports, be sure to get a waterproof pair so that your hands remain dry when you land in the snow.
Best mittens: Keep your hands cozy | PopSci Commerce Team | February 8, 2021 | Popular-Science
Be careful to investigate whether the gloves you’re considering are truly waterproof.
Best winter gloves: Our picks for touch screen gloves, ski gloves, and more | PopSci Commerce Team | February 2, 2021 | Popular-Science
If you happen to be in a rather wet environment, we suggest finding a trapper hat with a waterproof exterior.
Best winter hats: Comfortable hats to keep you warm | Carsen Joenk | January 20, 2021 | Popular-Science

But then, against all odds, it turned out that somehow, it had held its own and remained waterproof.
Making 'The Dog': The Amazing True Story Behind ‘Dog Day Afternoon’ | Allison Berg and Frank Keraudren | August 10, 2014 | THE DAILY BEAST
So they had to make me this waterproof renaissance gown and I would have to descend into the hot tub for rehearsal.
Michaela Watkins: Fired From ‘SNL’ To Hollywood’s Funniest Scene-Stealer | Kevin Fallon | March 4, 2014 | THE DAILY BEAST
The money was packaged in waterproof containers and thrown out of small, fixed-wing aircrafts over the ship.
The Pirate Negotiator | Caitlin Dickson | November 14, 2013 | THE DAILY BEAST
But tears were not the things to find their way to Mr. Bumbles soul; his heart was waterproof.
Oliver Twist, Vol. II (of 3) | Charles Dickens
In rainy weather Hepzebiah wears a blue waterproof with a little hood but the ducks do not need anything like that.
Seven O'Clock Stories | Robert Gordon Anderson
Rubbers and waterproof were hurried on, and Tessa was left alone with the fire, the rain, and her work.
Tessa Wadsworth's Discipline | Jennie M. Drinkwater
I had some doubtfully clean straw and my coat and waterproof, but I found it cold all the same.
Letters of Lt.-Col. George Brenton Laurie | George Brenton Laurie
The Duke of Cambridge, wrapped in a waterproof coat, spent most of the night riding about among his men.
The British Expedition to the Crimea | William Howard Russell

British Dictionary definitions for waterproof

waterproof

/ (ˈwɔːtəˌpruːf) /

adjective

not penetrable by water: Compare water-repellent, water-resistant

noun

mainly British a waterproof garment, esp a raincoat

verb(tr)

to make (a fabric, item of clothing, etc) waterproof

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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