combustible
com-bus-ti-ble
adjective
Capable of catching fire and burning easily, often with a rapid reaction.
"Petrol is a highly combustible liquid."
Thesaurus
Synonyms: comburant, incendiary, ignitible, combustive, burnable, ignitable, ignescent, flammable, inflammable, comburent, combustible material
Antonyms: incombustible, noncombustible