What is another word for most noncombustible?
Pronunciation: [mˈə͡ʊst nˌɒnkəmbˈʌstəbə͡l] (IPA) 
The term "most noncombustible" refers to something that is highly resistant to catching fire or burning. Some synonyms for this term include fireproof, flame-retardant, ignition-resistant, and fire-resistant. These terms all describe materials or substances that have been designed or treated to resist ignition or slow the spread of flames should a fire break out. Other possible synonyms might include inflammable, incombustible, or non-flammable. These terms all imply a complete lack of susceptibility to burning or ignition. Whether you're looking to describe a building material, a piece of equipment, or a chemical compound, using the right synonym for "most noncombustible" can help you convey the level of fire resistance and safety involved.
