Flammable

Origin

From Latin inflammare ‘to set on fire’ + the suffix -able via English inflammable. The in- prefix is dropped to avoid confusion with non-flammable, as in many English words of Latin origin (but not this word) the prefix "in-" and similar means "not".

Full definition of flammable

Adjective

1. Capable of burning, especially a liquid.
2. Easily set on fire.
3. Subject to easy ignition and rapid flaming combustion.

Synonyms

• inflammable

Antonyms

• non-flammable, nonflammable

Noun

1. Any flammable substance.