Incombustible

• (a.) Not combustible; not capable of being burned, decomposed, or consumed by fire; uninflammable; as, asbestus is an incombustible substance; carbon dioxide is an incombustible gas.
Found on http://thinkexist.com/dictionary/meaning/incombustible/

Incombustible

In`com·bus'ti·ble adjective [ Prefix in- not + combustible : confer French incombustible .] Not combustible; not capable of being burned, decomposed, or consumed by fire; uninflammable; as, asbestus is an incombustible substance; carbon dioxide is an incombustible ...
Found on http://www.encyclo.co.uk/webster/I/34
No exact match found