Find Antonyms
nonflammable Antonyms
Opposite of nonflammable
Pinning down the opposite of nonflammable requires matching its exact sense, so the antonyms and opposite words below are paired with a clear adjective definition and ranked by contrast strength.
• 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 flammable."
Strongest
flammable
inflammable
combustible
burnable
Strong
ignitable
Similar words to nonflammable
Words similar to nonflammable shift depending on context. Common synonyms include:
noncombustible
incombustible
flameproof
fireproof
fire-resistant
flame-retardant
• Nearby Words
Cite this Entry
Wordmom. (2026). Antonyms for Nonflammable. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/nonflammable