as in noncombustible
incapable of being burned
remember to store valuable papers in a fireproof box
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Recent Examples of fireproof
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
An executive order that would actually benefit the country would be to outlaw drywall and require builders to substitute brick, concrete or composite panels that are both waterproof and fireproof.
—David McGrath, Chicago Tribune, 1 Jan. 2026
Formula 1 drivers must wear fireproof undergarments.
—Skyler Caruso, PEOPLE, 21 Nov. 2025
Was there something special about them—a fireproof roof, say, or a fancy sprinkler system?
—Ingfei Chen, New Yorker, 22 Oct. 2025
See All Example Sentences for fireproof
Esha Chhabra, Forbes.com, 29 Jan. 2026
An executive order that would actually benefit the country would be to outlaw drywall and require builders to substitute brick, concrete or composite panels that are both waterproof and fireproof.
—David McGrath, Chicago Tribune, 1 Jan. 2026
Formula 1 drivers must wear fireproof undergarments.
—Skyler Caruso, PEOPLE, 21 Nov. 2025
Was there something special about them—a fireproof roof, say, or a fancy sprinkler system?
—Ingfei Chen, New Yorker, 22 Oct. 2025
See All Example Sentences for fireproof
Recent Examples of Synonyms for fireproof
Adjective
-
This means new homes are being constructed with noncombustible or fire-resistant materials.—
Mary Wasson,
Austin American Statesman,
3 Mar. 2026
-
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
Adjective
-
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
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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
Adjective
-
The work focuses on polymeric ionic liquids (PILs) which are nonflammable alternatives to conventional liquid electrolytes used in lithium-ion batteries.—
Neetika Walter,
Interesting Engineering,
24 Mar. 2026
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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
Cite this Entry
“Fireproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fireproof. Accessed 3 Apr. 2026.
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