as in noncombustible
incapable of being burned
we keep our important papers in an incombustible safe in the basement
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
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
-
Items mentioned in the ban include noncombustible products which can be chewed, absorbed, dissolved or ingested by other means.—
Dana Afana,
Freep.com,
22 Oct. 2025
-
Among them: Remove weeds, brush, and other invasive vegetation and debris, and use noncombustible rock mulch around your home in place of standard mulch.—
Andrea Riquier,
USA Today,
3 Oct. 2025
Adjective
-
Nayyar notes that friends who owned fireproof safes lost everything when even those protective measures proved insufficient against the extreme conditions.—
Esha Chhabra,
Forbes.com,
29 Jan. 2026
-
All of her outdoor lighting is fireproof with steel boxes.—
Rick Montanez,
CBS News,
9 Jan. 2026
Adjective
-
Wood, fiberglass and vinyl structures, such as fences and gates, are to be replaced with nonflammable materials such as stone, brick, metal and aluminum, Ilko said.—
Elizabeth Marie Himchak,
San Diego Union-Tribune,
20 Jan. 2026
-
Always place the heater on a hard, level and nonflammable surface; never place on tables, cabinets, furniture or carpet.—
Julianna Duennes Russ,
Austin American Statesman,
14 Dec. 2025
Cite this Entry
“Incombustible.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/incombustible. Accessed 4 Feb. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
