Definition of combustible in English:


Line breaks: com¦bust|ible
Pronunciation: /kəmˈbʌstɪb(ə)l


1Able to catch fire and burn easily: a combustible gas
More example sentences
  • It is combustible like everything else in this room.
  • When exposed to a fire, the chemicals react with the combustible gasses normally produced by untreated wood as it burns, converting them to carbon char, carbon dioxide and water.
  • They fear possible gas leaks and fires being started by combustible materials deposited in the huge caves created by mining activities.
1.1Excitable; easily annoyed: a volatile and combustible personality
More example sentences
  • The result is not only more subdued than one might expect of the combustible personalities at work here, but also more intelligent, more intellectual, even, and more profound.
  • They may not quite have the combustible mix of personalities of the two great Americans.
  • Prior to his conversion, the part-time manicurist had a reputation for hard partying and a combustible personality.


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A combustible substance.
More example sentences
  • Class A extinguishers are used for ordinary combustibles including wood and paper.
  • Class A Extinguishers can be used on ordinary combustibles such as wood, cloth, and paper.
  • As mentioned earlier, the only childhood task I dreaded more than fetching things was hauling combustibles, like paper, down to the shacks by the creek.


early 16th century: from Old French, from late Latin combustibilis, from Latin combust- 'burnt up', from the verb comburere.



Pronunciation: /-ˈbɪlɪti/
More example sentences
  • Well, there's this little matter of combustibility: Magnesium burns white-hot, making it tough to work with in a factory setting.
  • It was, in his opinion, the mixture of greed and ‘false theories’ that gave the insurrection its peculiar combustibility.
  • They are men in whom real ability wages perpetual war with combustibility.

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