noncombustible

adjective

non·​com·​bus·​ti·​ble ˌnän-kəm-ˈbə-stə-bəl 

: incapable of igniting and burning when subjected to fire : not combustible

noncombustible materials

drums of noncombustible waste

Synonyms

• fireproof
• incombustible
• nonflammable
• noninflammable

Example Sentences

Recent Examples on the Web

This number has been volatile since the pandemic, but will remain weak if PMI can persuade large numbers of American smokers to switch to noncombustible products. —Carol Ryan, WSJ, 8 Nov. 2022

Although cigarette smoking has steadily declined over the past several decades, thanks to a more educated and health-conscious society, new and existing combustible and noncombustible tobacco products continue to pose public health challenges. —Michael B. Farber And Anand Shah, STAT, 27 Aug. 2022

In the past, Altria has said that, if limits are put on nicotine levels in cigarettes, the FDA must ensure that adult smokers have greater access to noncombustible alternatives and accurate information about switching to them. —Laurie Mcginley, Anchorage Daily News, 21 June 2022

For an age of increasingly large wildfires, engineers installed noncombustible siding and an air filtration system, separate from the heating and cooling system, that can entirely shut off outside air to seal the building from wildfire smoke. —New York Times, 8 Apr. 2022

And simply covering attic vents and chimneys with wire mesh or installing noncombustible metal leaf guards over gutters can reduce the chances of wildfire embers entering your home or igniting debris, Chapman-Henderson says. —Washington Post, 4 Jan. 2022

The revenue from tobacco products in the US is more than $50 billion, and with noncombustible products, manufacturers can continue profiting from it. —Annalisa Merelli, Quartz, 13 Oct. 2021

Unlike wood used in pieces such as two-by-fours, mass timber products are designed to be noncombustible. —Ryan Ori, chicagotribune.com, 28 Sep. 2021

In this case, lay the project out on a flat, noncombustible surface—the shop floor. —Mike Allen, Popular Mechanics, 17 Oct. 2020

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Word History

First Known Use

1827, in the meaning defined above