Try Our Apps


Avoid these words. Seriously.


[reyn-proof] /ˈreɪnˌpruf/
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 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
Cite This Source
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
  • Really, it was quite a comfortable abode, cool and rainproof, especially after Bastin had built his hut in which to cook.

    When the World Shook H. Rider Haggard
  • An outer covering that is rainproof and non-absorbent avoids the absorption of water and the consequent increase of weight.

  • No one would cavil at that term as applied to Whitman—yet one must not forget the “rainproof coat.”

  • "Only we'd have to make them stone proof as well as rainproof," and at this remark there was a general smile.

    The Rover Boys on a Tour Arthur M. Winfield
  • Silk and woolen materials for umbrella making, raincoats, etc., are expected to be rainproof.


    William H. Dooley
British Dictionary definitions for rainproof


Also raintight. (of garments, materials, buildings, etc) impermeable to rainwater
(transitive) 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
Cite This Source
Word Origin and History for rainproof

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

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Nearby words for rainproof

Word Value for rainproof

Scrabble Words With Friends