What is another word for most nonflammable?
Pronunciation: [mˈə͡ʊst nˌɒnflˈaməbə͡l] (IPA) 
The term "most nonflammable" suggests a high level of fire resistance, and there are several synonyms that convey the same meaning. Among these synonyms are "fireproof," "incombustible," "noncombustible," "ignition-resistant," and "flame-resistant." These synonyms are often used interchangeably in safety and building codes, as well as in product descriptions for items that must meet specific fire safety standards. Other terms that may be used to describe something that is highly fire resistant include "fire-retardant," "fire-resistant," "fire-safe," and "fire-enduring." Whatever term is used to describe an object's fire safety characteristics, it is clear that the highest degree of fire resistance is essential for ensuring personal and property safety in hazardous conditions.
