noninflammable

adjective

non·​in·​flam·​ma·​ble ˌnän-in-ˈfla-mə-bəl 

: not inflammable : nonflammable

… one of the very first airships to use noninflammable helium.

—Bob Marcotte

a noninflammable solvent

Synonyms

• fireproof
• incombustible
• noncombustible
• nonflammable

Examples of noninflammable in a Sentence

noninflammable materials used for construction of the interior of the nightclub

Word History

First Known Use

1817, in the meaning defined above