Find Antonyms
flammability Antonyms
Opposite of flammability
Pinning down the opposite of flammability requires matching its exact sense, so the antonyms and opposite words below are paired with a clear noun definition and ranked by contrast strength.
• noun (Context 1)
The quality or degree of being easily ignited and capable of burning rapidly.
Usage Example
"Safety inspectors tested the nonflammability of the new synthetic fabric before approving it for children's sleepwear."
Strongest
nonflammability
incombustibility
Similar words to flammability
Words similar to flammability shift depending on context. Common synonyms include:
inflammability
combustibility
ignitability
Cite this Entry
Wordmom. (2026). Antonyms for Flammability. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/flammability