incombustible
C2Ածական/US /ɪnkəˈmbʌstəbəl/ ĭnkəˈmbŭstəbəl; UK /ɪnkəˈmbʌstəbəl/ ĭnkəˈmbŭstəbəl/
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.
