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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Hapi Homes, a modular home company, is seeing skyrocketing demand thanks to its noncombustible light-gauge steel framing.—
Jennifer Castenson,
Forbes.com,
21 May 2025
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The focus should be on noncombustible or low-ignition species, many of which are also drought-tolerant — such as succulents.—
Jamie Gold,
Forbes.com,
22 Apr. 2025
Adjective
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Reliable fireproof storage is a smart investment to protect what matters most.—
BestReviews,
Chicago Tribune,
30 Apr. 2025
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This document box is fireproof up to 1,550 degrees and waterproof for up to 72 hours.—
BestReviews,
Chicago Tribune,
30 Apr. 2025
Adjective
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By using water as their solvent, these hydrogel batteries would prove nonflammable and less sensitive to moisture than commercial lithium-ion batteries.—
IEEE Spectrum,
IEEE Spectrum,
21 Apr. 2025
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Miller also recommended a buffer zone between homes and wildland areas, which would be kept clear and contain nonflammable vegetation.—
Denise Chow,
NBC News,
22 Jan. 2025
Cite this Entry
“Incombustible.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/incombustible. Accessed 14 Jul. 2025.
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