nonburnable
adjective
non·burn·able ˌnän-ˈbər-nə-bəl 
: unable to be burned : not combustible : not burnable
safe and nonburnable materials
Word History
First Known Use
1880, in the meaning defined above
nonburnable
adjective
as in noninflammable
Synonyms & Similar Words
Relevance
- noninflammable
- nonflammable
- noncombustible
- incombustible
- fireproof
- unburnable
- nonexplosive
Antonyms & Near Antonyms
- combustible
- flammable
- inflammable
- fiery
- ignitible
- touchy
- explosive
- burnable
- incendiary
- ignitable
- combustive