FIRE-PROOF Synonyms: 29 Similar and Opposite Words

fireproof

adjective

ˈfī(-ə)r-ˌprüf

Definition of fireproof

as in noncombustible

incapable of being burned remember to store valuable papers in a fireproof box

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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 fireproof Those things are fireproof, at least. — Ashley Hume, FOXNews.com, 9 May 2026 The proposal originally would have required companies to cover the homes of individuals who take specific steps to make their homes more fireproof, an idea that advocates and legislators have pitched for years. — Stephen Hobbs, Sacbee.com, 23 Apr. 2026 Outside are nearly $1 million of other cameras and instruments in a fireproof building nearby and scattered around. — ABC News, 21 Apr. 2026 The entire city block-sized Norton Tire warehouse was leveled, save a massive, fireproof computer vault that kept the company’s business records intact. — Howard Cohen, Miami Herald, 15 Apr. 2026 See All Example Sentences for fireproof

Recent Examples of Synonyms for fireproof

Adjective

James Hardie fiber cement siding was selected for its noncombustible, moisture and pest resistance, and ability to stand up to weather extremes.

— Jennifer Castenson, Forbes.com, 20 July 2026
Fire-proofing strategies include using noncombustible materials in decks and fences, moving plants away from houses and limiting the use of certain beloved plants — like rosemary or junipers — because they are known to be flammable.

— Martha Ross, Mercury News, 3 July 2026

Definition of noncombustible

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
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

Definition of incombustible

Adjective

Residents should clear dead or dying vegetation around their homes, landscape with fire-resistant plants and nonflammable ground cover, and find alternative ways to dispose of landscape debris, according to Cal Fire’s Nevada-Yuba-Placer Unit.

— Haley Parsley, Sacbee.com, 17 June 2026
That’s where nonflammable alternatives become essential.

— Georgina Jedikovska, Interesting Engineering, 6 May 2026

Definition of nonflammable

Browse Nearby Words

firepower

fireproof

fires

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“Fireproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fireproof. Accessed 22 Jul. 2026.

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Synonyms of fireproof

adjective

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