incombustible Meaning, Definition & Usage

  1. adjective not capable of igniting and burning
    noncombustible.

WordNet

In`com*bus"ti*ble adjective
Etymology
Pref. in- not + combustible: cf. F. incombustible.
Definitions
  1. 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. -- In`com*bus"ti*ble*ness, n. -- In`com*bus"ti*bly, adv.

Webster 1913