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rainproof

[reyn-proof]
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adjective
  1. impervious to rain; keeping out or unaffected by rain: a rainproof cover; a rainproof coat.
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verb (used with object)
  1. to make rainproof.
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Origin of rainproof

First recorded in 1825–35; rain + -proof
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for rainproof

Historical Examples

  • 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.

  • A more suitable and rainproof roof could scarcely be designed.

  • 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
  1. Also: raintight (of garments, materials, buildings, etc) impermeable to rainwater
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verb
  1. (tr) to make rainproof
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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.).

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Online Etymology Dictionary, © 2010 Douglas Harper