In general use, flammable is now the preferred term for describing things that can catch fire, but inflammable is still occasionally used with that meaning as well.

Flammable applies to combustible materials that ignite easily and thus are more dangerous and more highly regulated. Less easily ignited less-vigorously burning materials are combustible.

FLAMMABLE meaning: 1. Something that is flammable burns easily: 2. Something that is flammable burns easily: 3. able…. Learn more.

FLAMMABLE definition: easily set on fire; combustible; inflammable. See examples of flammable used in a sentence.

Liable to catch fire; readily combustible; inflammable.... Click for English pronunciations, examples sentences, video.

Dec 14, 2025 · Back-formation from inflammable, which is used to avoid confusion with non-flammable, as the prefix in- is often used to mean "un-; non-", although it was originally meant in a sense closely …

Definition of flammable adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Flammable and inflammable sound like they are antonyms, or opposites. In fact, they are synonyms, words that have the same meaning. Both flammable and inflammable mean "quick to catch fire and …

Britannica Dictionary definition of FLAMMABLE [more flammable; most flammable] : capable of being set on fire and of burning quickly a flammable liquid a highly flammable fabric

Usage: Flammable and inflammable are interchangeable when used of the properties of materials. Flammable is, however, often preferred for warning labels as there is less likelihood of …