incombustible

adjective

in·​com·​bus·​ti·​ble ˌin-kəm-ˈbə-stə-bəl How to pronounce incombustible (audio)
: not combustible : incapable of being burned
incombustibility noun
incombustible noun

Examples of incombustible in a Sentence

we keep our important papers in an incombustible safe in the basement
Recent Examples on the Web The Tribune claimed its four-story building constructed of stone, brick and iron at the southeast corner of Dearborn and Madison streets was incombustible. Chicago Tribune Staff, Chicago Tribune, 22 May 2022 The Chicago Tribune claimed its four-story building constructed of stone, brick and iron at the southeast corner of Dearborn and Madison streets was incombustible. Kori Rumore, chicagotribune.com, 1 Oct. 2021 In October, scientists announced a new prototype of a lithium-ion battery that’s flexible and incombustible, eliminating in one fell swoop two of the biggest safety complaints about these batteries. Caroline Delbert, Popular Mechanics, 2 Dec. 2019 Omnis said combustible Reynobond PE material was safe to use on high rise buildings if the insultation material usually put behind the panels was made of incombustible material such as mineral fibre. Reuters, Fortune, 26 June 2017

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'incombustible.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Middle English, probably from Middle French, from in- + combustible combustible

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of incombustible was in the 15th century

Dictionary Entries Near incombustible

Cite this Entry

“Incombustible.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/incombustible. Accessed 28 Feb. 2024.

Kids Definition

incombustible

adjective
in·​com·​bus·​ti·​ble ˌin-kəm-ˈbəs-tə-bəl How to pronounce incombustible (audio)
: incapable of being burned

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