Flameproof

Part of speech: adjective

Definitions

1. Material that does not ignite or burn when exposed to fire is often used for protective purposes in hazardous environments
2. Specifically engineered to withstand heat and flames, this substance maintains integrity without catching fire or combusting
3. A type of material designed to resist catching fire and continuing to burn when subjected to high temperatures is commonly utilized in safety applications

Etymology: Flameproof is a plain compound: "flame" joined to the suffix "-proof," which in English means "resistant to" or "impervious to," as in "waterproof" or "shockproof." The suffix works as a noun-forming element that became productive in English, so people could attach it to almost anything that needed guarding against. The "flame" half has a long pedigree. It traces back through Proto-Italic "flagmā" to Latin "flamma," passed through Old French "flame" and Anglo-Norman "flaume," and reached Middle English as "flawme" before settling into the modern spelling. Latin "flamma" is itself the root of words like "inflame," which shows the same fiery idea running through the family.

Synonyms: fire-resistant, fireproof, heat-resistant, flame-retardant, non-flammable

Antonyms: flammable, combustible, ignitable, burnable, inflammable