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Definition of rainproof
rainproof
/ˈreɪn.pruːf/
rain · proof
Past Simple:rainproofed
•Past Participle:rainproofed
•Present Participle:rainproofing
rainproof Lexical Profile
CEFR
B2
Grade
6
Tier
2
Usage
Rare
Syllables
2
rainproof Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Resistant or impervious to rain; unable to be penetrated or damaged by rainwater.
Example
"She packed a lightweight, rainproof jacket in her backpack before heading up the mountain trail."
Synonyms
View all synonyms for rainproof Antonyms
View all antonyms for rainproof• verb
1
To make a garment, fabric, or structure resistant or impervious to rain.
Example
"We used a wax-based spray to rainproof the canvas tent before the autumn camping trip."
Synonyms
View all synonyms for rainproof• Rhymes for rainproof
• Nearby Words
Cite this Entry
Wordmom. (2026). Definition of Rainproof. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/rainproof