flameproof
adjective, verb
flameproof is an adjective meaning “Resistant to catching fire” (English Wiktionary, September 2026). It is spelled F-L-A-M-E-P-R-O-O-F, and it appears about once in every 32 million words in written English (wordfreq, 2021 data).
What does flameproof mean?
adjective
- 1
Resistant to catching fire.
verb
- 1
To make flameproof.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of flameproof
- more flameproof comparative
- most flameproof superlative
- flame-proof
- flameproofs present, singular, he/she/it
- flameproofing participle, present
- flameproofed participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is flameproof?
Flameproof appears about once in every 32 million words in written English, the 171,907th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Where does flameproof come from?
From flame + -proof.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).