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

Mar 4, 2026 · Flammable materials are any substances that can catch fire and burn when exposed to a heat source, spark, or open flame. They include liquids, solids, and gases, and they’re found …

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 …

Unpaid military and security forces, a demoralised public service, armies of unemployed youth and an increasingly impoverished mass population became the core elements of a flammable society.

Flammable is a term that describes the ability for a material to ignite. It is often used alongside combustible which also describes the ability to ignite—but one difference is that flammable materials …

Flammables and combustible chemicals are easily ignited and may present a serious fire or explosion hazard. The lower the flash point of flammable liquids, the more dangerous it is. Flammable liquids …

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

Jan 17, 2026 · Adjective flammable (comparative more flammable, superlative most flammable) Capable of burning.