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.

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

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 …

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

1 day ago · Flammable and inflammable both mean easy to catch fire. Here is why they match, and why many safety labels now prefer flammable.

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 …

Apr 1, 2026 · Adjective flammable (comparative more flammable, superlative most flammable) Capable of burning.

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 …