waterproof

[ waw-ter-proof, wot-er- ]
See synonyms for waterproof on Thesaurus.com
adjective

  1. impervious to water.

  2. rendered impervious to water by some special process, as coating or treating with rubber: a waterproof hat.

noun

  1. Chiefly British. a raincoat or other outer coat impervious to water.

  2. any of several coated or rubberized fabrics that are impervious to water.

verb (used with object)

  1. to make waterproof.

Origin of waterproof

1
First recorded in 1730–40; water + -proof

Other words from waterproof

  • wa·ter·proof·er, noun
  • wa·ter·proof·ness, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

British Dictionary definitions for waterproof

waterproof

/ (ˈwɔːtəˌpruːf) /

adjective

  1. not penetrable by water: Compare water-repellent, water-resistant

noun

  1. mainly British a waterproof garment, esp a raincoat

verb(tr)

  1. to make (a fabric, item of clothing, etc) waterproof

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

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