weatherproof

adjective

weath·​er·​proof ˈwe-t͟hər-ˌprüf 

: able to withstand exposure to weather without damage or loss of function

weatherproof transitive verb

weatherproofness noun

Examples of weatherproof in a Sentence

The material is weatherproof and will not rot from moisture.

Recent Examples on the Web

Take some time to seal gaps in window and door frames with weatherproof caulk to prevent fall stink bug problems, along with roaches, boxelder bugs, cluster flies, and other nuisances. — Caley Sturgill, Southern Living, 25 Sep. 2026

Lighter versions land on nylon commuter jackets and weatherproof spring layers. — Lauren Schuster, Kansas City Star, 21 Sep. 2026

Wow Dream Coat is less like a conventional leave-in conditioner and more like a weatherproof topcoat for your blowout. — Polly Blitzer, Glamour, 9 Sep. 2026

Each bin features a weatherproof gasket seal that locks out moisture and dust and keeps your belongings looking and smelling fresh. — Stephanie Osmanski, Better Homes & Gardens, 25 Aug. 2026

Word History

First Known Use

circa 1620, in the meaning defined above

Rhymes for weatherproof

• bulletproof
• fireproof
• waterproof
• aloof
• behoof
• disproof
• flameproof
• foolproof
• greaseproof
• leakproof
• reproof
• soundproof

Kids Definition

weatherproof

adjective

weath·​er·​proof ˌwet͟h-ər-ˈprüf 

: able to stand up under exposure to weather

weatherproof verb