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nonflammable Synonyms

Another word for nonflammable

Choosing another word for nonflammable that fits your sentence is easier when synonyms and similar words are paired with an exact adjective definition and ranked by match strength.
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• adjective (Context 1)

Not easily ignited and not capable of burning rapidly when exposed to flame.

Usage Example

"The laboratory curtains were treated with a chemical solution to make them completely incombustible."

Strongest
incombustible
noncombustible
fireproof
flameproof
Strong
fire-resistant
flame-retardant

Opposites of nonflammable

The opposite of nonflammable shifts depending on context. Common opposites include:

flammable
inflammable
combustible
burnable
ignitable
See all opposites of nonflammable

• Nearby Words

nonfiction
nonfictional
nonfinancial
nonflammable
nonflowering
nonflying
nonfood

Cite this Entry

Wordmom. (2026). Synonyms for Nonflammable. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/nonflammable
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