-proof
-proof suffix: added to a noun to form an adjective denoting imperviousness to that noun.
Suffix
-proof (adjective-forming suffix, comparative more -proof, superlative most -proof)
- 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.
-proof meaning in Malay
-proof in Malay
- denoting an impervious quality
- kalis
Forms of -proof
| comparative | more -proof |
|---|---|
| superlative | most -proof |
| third-person singular present | -proofs |
| present participle | -proofing |
| past participle | -proofed |
| past | -proofed |
Origin of -proof
From the adjective proof (“fully resistant”), from the same Old French root as prove.
Words formed from -proof
- 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
Questions about -proof
- What does -proof mean?
- -proof means added to a noun to form an adjective denoting imperviousness to that noun.
- What is -proof in Malay?
- -proof in Malay is kalis. See -proof meaning in Malay.
- What part of speech is -proof?
- -proof is a suffix.
Words near -proof in the dictionary
Source and license
Adapted from Wiktionary: -proof (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Cite this entry: “-proof.” Word.ws, https://word.ws/-proof. Based on Wiktionary, CC BY-SA 4.0.