-proof
English
Etymology
From the adjective proof (“fully resistant”), from the same Old French root as prove.
Suffix
-proof (adjective-forming suffix, comparative more -proof, superlative most -proof)
-proof (verb-forming suffix, third-person singular simple present -proofs, present participle -proofing, simple past and past participle -proofed)
- Added to a noun to form an adjective denoting imperviousness to that noun.
- Added to a noun to form a verb denoting a process to make something impervious to that noun.
Usage notes
- Often used as the second part of a combined form (such as bullet-proof) rather than as a true suffix (as in waterproof)
Derived terms
- acid-proof
- bug-proof
- burglar-proof
- cat-proof
- crash-proof
- dog-proof
- earthquake-proof
- explosion-proof
- frost-proof
- future proof
- hammer-proof
- hurricane-proof
- idiotproof
- inflation-proof
- limeproof
- moisture-proof
- pig-proof
- rabbitproof
- rabbit-proof
- rust-proof
- sale-proof
- saltproof
- scaleproof
- shellproof
- stiletto-proof
- stormproof
- storm-proof
- virus-proof
- waterproof
- weatherproof
- wind-proof
- windproof
- winter-proof
Translations
denoting an impervious quality
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See also
Anagrams
Dutch
Etymology
Suffix
-proof