as in noncombustible
incapable of being burned
we keep our important papers in an incombustible safe in the basement
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Example Sentences
Recent Examples of Synonyms for incombustible
Adjective
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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.
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This means new homes are being constructed with noncombustible or fire-resistant materials.
Adjective
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Gravel is permanent, fireproof, and ideal for xeriscaping or rock gardens, but can trap soil and weeds, and may overheat plants.
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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.
Adjective
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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.
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That’s where nonflammable alternatives become essential.
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Cite this Entry
“Incombustible.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/incombustible. Accessed 2 Jul. 2026.
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