incombustible
incombustible — adjective
- incombustiblepositive
- more incombustiblecomparative
- most incombustiblesuperlative
1. describes a material or substance that will not catch fire or burn when it is ex
describes a material or substance that will not catch fire or burn when it is exposed to heat or open flames.
When designing her new kitchen, Mei insisted on incombustible countertops near the gas stove.
incombustible + noun describing a building material
The fire inspector told Rodrigo that all apartment walls must be made of incombustible materials.
be made of + incombustible + noun
Unlike the wooden shed, the new storage unit was built with incombustible metal panels.
The chemistry teacher showed the class that steel wool burns easily but brick is incombustible.
Kofi chose an incombustible roof for his house after a nearby wildfire damaged several homes.
- non-flammable
more common in everyday household contexts such as product labels; less formal than 'incombustible'
- fire-resistant
suggests the material can withstand fire for a period rather than being completely unable to burn
- non-combustible
direct synonym, used interchangeably in technical and legal writing
- combustible
able to catch fire and burn; the direct opposite in the same register
- flammable
catches fire easily; the more common everyday opposite
文法句型
incombustible + noun
be + incombustible
用法筆記
Common in building regulations, safety guidelines, and chemistry contexts. Only one sense exists — no risk of confusion with other senses of the same headword.