incombustible
adjective
[ ˌɪnkəmˈbʌstɪb(ə)l ]
• (especially of a building material or component) consisting or made of material that does not burn if exposed to fire.
• "an incombustible floor construction"
Similar:
non-flammable,
non-combustible,
not inflammable,
unburnable,
fireproof,
fire-resistant,
fire-retardant,
flameproof,
flame-resistant,
flame-retardant,
heatproof,
ovenproof,
non-flam,
asbestine,
Origin:
late 15th century: from medieval Latin incombustibilis, from in- ‘not’ + combustibilis (see combustible).
