Find Antonyms

combustible Antonyms

Opposite of combustible

Because the opposite of combustible shifts with each meaning, the 12 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• adjective (Context 1)

Capable of catching fire and burning easily.

Usage Example

"All incombustible materials must be stored in sealed metal cabinets away from open flames."

Strongest
incombustible
noncombustible
nonflammable
fireproof
flameproof
Strong
fire-resistant

• adjective (Context 2)

Easily excited, angered, or provoked into sudden conflict or emotional outbursts.

Usage Example

"Negotiators worked carefully to defuse the calm political climate between the two rival factions."

Strongest
calm
placid
even-tempered
Strong
tranquil
serene
peaceable

Similar words to combustible

Words similar to combustible shift depending on context. Common synonyms include:

volatile
explosive
flammable
inflammable
fiery
ignitable
burnable
short-tempered
See all synonyms of combustible

• Nearby Words

combine
combo
combust
combustible
combustion
come
comeback

Cite this Entry

Wordmom. (2026). Antonyms for Combustible. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/combustible
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