NONCOMBUSTIBLE Synonyms: 29 Similar and Opposite Words

noncombustible

adjective

ˌnän-kəm-ˈbə-stə-bəl

Definition of noncombustible

as in incombustible

incapable of being burned firefighting gear is made of noncombustible material

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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 noncombustible Trees would also be allowed, but would need to be trimmed away from walls and roofs, and residents could install only noncombustible fencing against the house. — Noah Haggerty, Los Angeles Times, 25 Apr. 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 This means new homes are being constructed with noncombustible or fire-resistant materials. — Mary Wasson, Austin American Statesman, 3 Mar. 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 See All Example Sentences for noncombustible

Recent Examples of Synonyms for 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

Gravel is permanent, fireproof, and ideal for xeriscaping or rock gardens, but can trap soil and weeds, and may overheat plants.

— Andy Wilcox, Better Homes & Gardens, 9 June 2026
Pool balls crack while patrons flash cash at Scoty Hopkins, who’s tended bar for nearly a decade inside the mammoth structure, which in 1886 was the first fireproof building constructed in Contra Costa County.

— Katie Lauer, Mercury News, 8 June 2026

Definition of fireproof

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

noncombative

noncombustible

noncommercial

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“Noncombustible.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/noncombustible. Accessed 8 Jul. 2026.

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Synonyms of noncombustible

adjective

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