rainproof

[reyn-proof]
See more synonyms for rainproof on Thesaurus.com
verb (used with object)
  1. 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


British Dictionary definitions for rainproof

rainproof

adjective
  1. Also: raintight (of garments, materials, buildings, etc) impermeable to rainwater
verb
  1. (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.).

Online Etymology Dictionary, © 2010 Douglas Harper