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 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 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 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 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

Consider keeping an original will at the estate planner’s office or in a waterproof and fireproof container in your home or other accessible location.

— Bob Carlson, Forbes.com, 28 Aug. 2026
Keep documents such as passports and insurance paperwork in a waterproof, fireproof container or locked safe to prevent any potential damage.

— Maria Sabella, Better Homes & Gardens, 25 Aug. 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 1 Sep. 2026.

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Synonyms of noncombustible

adjective

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