Simple Definition of combustible

from our Learner's Dictionary

combustible

adjective

kəmˈbʌstəbəl

: able to be burned easily

combustible gases/materials

The fuel is highly/very combustible.

—sometimes used figuratively

a combustible situation [=a situation in which people are angry and could become violent]

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“Combustible.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/combustible. Accessed 21 Jun. 2026.

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