as in noncombustible
incapable of being burned
we keep our important papers in an incombustible safe in the basement
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Recent Examples of incombustible
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
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
Recent Examples of Synonyms for incombustible
Adjective
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Firefighters and insurance executives continue to press for a strictly noncombustible Zone Zero, warning that vulnerable communities otherwise will become increasingly uninsurable and risk destruction from urban firestorms.—
Bloomberg,
Mercury News,
12 Aug. 2025
-
The Rancho Santa Fe Fire District has been enforcing this law since 2024, where the first five feet around homes has to be completely noncombustible—that means no landscaping, trash cans, plastic pots or patio furniture; the area should just be gravel, pavers or dirt.—
Karen Billing,
San Diego Union-Tribune,
22 July 2025
Adjective
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The slim, low-profile sneaker originated as a fireproof Formula 1 footwear style, but over the decades has become a go-to sneaker for fashion enthusiasts.—
Karla Rodriguez,
Footwear News,
8 Aug. 2025
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Mind you, this was a time when racing had no seat restraints, no fireproof clothing and barely any head protection.—
Indianapolis Star,
IndyStar,
2 July 2025
Adjective
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The second was to build what amounts to a nonflammable moat around a home to prevent embers from alighting on anything next to a house that could burn and ignite the structure.—
Bloomberg,
Mercury News,
12 Aug. 2025
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Keep vehicles off dry grass Properly discard cigarettes or anything flammable (think ashtrays or a nonflammable container, not the ground, and fully snuffed out) The air quality, however, is not dangerous, according to AirNow, which reports the official U.S. air quality.—
Nicole Villalpando,
Austin American Statesman,
2 July 2025
Cite this Entry
“Incombustible.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/incombustible. Accessed 1 Sep. 2025.
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