Dictionary.com

rainproof

[ reyn-proof ]
/ ˈreɪnˌpruf /
Save This Word!

adjective
impervious to rain; keeping out or unaffected by rain: a rainproof cover; a rainproof coat.
verb (used with object)
to make rainproof.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.

Origin of rainproof

First recorded in 1825–35; rain + -proof
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use rainproof in a sentence

British Dictionary definitions for rainproof

rainproof
/ (ˈreɪnˌpruːf) /

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
FEEDBACK