rainproof

[reyn-proof]

See more synonyms for rainproof on Thesaurus.com

adjective

impervious to rain; keeping out or unaffected by rain: a rainproof cover; a rainproof coat.

verb (used with object)

to make rainproof.

Origin of rainproof

First recorded in 1825–35; rain + -proof

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for rainproof

impermeable, impervious, airtight, sealed

Examples from the Web for rainproof

Historical Examples of rainproof

In this way he built a very comfortable and rainproof bower.
An American Robinson Crusoe
Samuel. B. Allison
The billets were comfortable and rainproof, making it an ideal place to stay.
History of Ambulance Company Number 139
Various
A more suitable and rainproof roof could scarcely be designed.
Argentina From A British Point Of View
Various
Cravenette—Cloths treated and finished before weaving by an improved process which renders them rainproof.
Textiles and Clothing
Kate Heintz Watson
We hasten to the trusty car and are soon ensconced beneath its rainproof coverings.
In Unfamiliar England
Thomas Dowler Murphy

British Dictionary definitions for rainproof

rainproof

adjective

Also: raintight (of garments, materials, buildings, etc) impermeable to rainwater

verb

(tr) to make rainproof

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

Word Origin and History for rainproof

adj.

also rain-proof, 1788, from rain (n.) + proof (n.).