RAINPROOF Synonyms: 14 Similar and Opposite Words

rainproof

adjective

Definition of rainproof

as in waterproof

Related Words

Relevance

Dissimilar Words

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of rainproof The tent’s material is also rainproof and offers UV protection from the sun. — Jasmine Gomez, Travel + Leisure, 1 Oct. 2025 Rubber boots, plastic rain suits and rainproof ponchos keep you dry while handling outdoor emergencies. — Debbie Arrington, Sacramento Bee, 31 Jan. 2024 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 This Under Armour best-seller is rainproof and has HeatGear shoulder straps for extra comfort. — Sabrina Talbert, Women's Health, 21 Mar. 2023

Recent Examples of Synonyms for rainproof

Adjective

This mattress pad from a top brand offers superior waterproof protection and 10 heat settings.

— BestReviews, Mercury News, 30 July 2026
The lightweight, waterproof, and washable style is available for $50 at REI.

— Destinee Scott, Travel + Leisure, 28 July 2026

Definition of waterproof

Adjective

For now, access appears limited to the steadily expanding group of organizations granted access to Claude Mythos Preview through Anthropic’s — not entirely watertight — private Project Glasswing initiative.

— Robert Hart, The Verge, 9 June 2026
Tunnels are also not truly watertight, requiring drainage measures like sump pumps and creating maintenance and reliability issues, the group advised.

— Skyler Swisher, The Orlando Sentinel, 15 Feb. 2026

Definition of watertight

Adjective

It’s made with food-grade stainless steel that is both BPA and phthalate free, and also features a leakproof lid that easily glides back and forth to open or close.

— Stephanie Osmanski, Better Homes & Gardens, 17 July 2026
Each container comes with a leakproof, airtight, and BPA-free plastic lid that is safe for use in the microwave, dishwasher, and freezer, so each one is easy to use and clean.

— Alicia Geigel, Southern Living, 14 July 2026

Definition of leakproof

Browse Nearby Words

rainless

rainproof

rains

See all Nearby Words

Cite this Entry

Style

“Rainproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rainproof. Accessed 6 Aug. 2026.

Copy Citation

Synonyms of rainproof

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster on rainproof

More from Merriam-Webster

Word of the Day

torpor

Popular in Grammar & Usage

7 Pairs of Commonly Confused Words

Merriam-Webster’s Great Big List of Words You Love to Hate

Is it 'nerve-racking' or 'nerve-wracking'?

'Sneaked' or 'Snuck': Which is correct?

Why does English have so many silent letters?

Popular in Wordplay

The Longest Long Words List

It's a Scorcher! Words for the Summer Heat

14 Phobias You Probably Haven't Heard Of

How long is a jiffy?

Even More Bird Names that Sound Like Insults (and Sometimes Are)

Popular

7 Pairs of Commonly Confused Words

The Longest Long Words List

It's a Scorcher! Words for the Summer Heat

Games & Quizzes