Flammable and inflammable look like opposites, but they both describe something that ignites easily and burns quickly. Inflammable arrived in English two centuries before flammable.

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

Attributes like "belonging-to" or "flammable," whose presence or absence cannot be judged simply by sensing, are not included in the set of perceptual attributes.

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.

Dec 14, 2025 · 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 …

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

The word, inflammable, which sounds like the opposite of flammable, actually means the same thing — easily catching on fire. If you want to say that something won't catch fire easily, use fireproof 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