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Incombustible vs Fireproof - What's the difference?

incombustible | fireproof |

As adjectives the difference between incombustible and fireproof

is that incombustible is not capable of catching fire and burning; not flammable while fireproof is resistant to damage from fire.

As a noun incombustible

is any substance that is not flammable.

As a verb fireproof is

to make resistant to damage from fire.

incombustible

English

Adjective

(en adjective)
  • Not capable of catching fire and burning; not flammable.
  • *

    • Antonyms

    * (not flammable) combustible, flammable (US), inflammable (UK)

    Noun

    (en noun)
  • Any substance that is not flammable.
    • ----

    fireproof

    English

    Adjective

    (en adjective)
  • Resistant to damage from fire.
    • The fireproof safe will protect documents inside for up to four hours in a standard house fire.

    Synonyms

    * (resistant to damage from fire ): fire-resistant, flame-retardant

    Verb

    (en verb)
  • To make resistant to damage from fire.
    • I hastily fireproofed my clothing somewhat by pouring a bucket of water over myself before dashing into the flames.