Definition of weatherproof
: able to withstand exposure to weather without damage or loss of function
Examples of weatherproof in a sentence
The material is weatherproof and will not rot from moisture.
First Known Use of weatherproof
WEATHERPROOF Defined for English Language Learners
Definition of weatherproof for English Language Learners
: not able to be changed or damaged by the effects of the sun, wind, rain, etc.
: able to protect someone or something from the effects of the sun, wind, rain, etc.
Seen and Heard
What made you want to look up weatherproof? Please tell us where you read or heard it (including the quote, if possible).