Capable of burning; easily set on fire. / (figuratively) Easily excited; set off by the slightest excuse; easily enraged or inflamed. / (nonstandard) Incapable of burning; not easily set on fire.

Any inflammable substance.

plural of inflammable

The quality of being inflammable.

The act of inflaming, kindling, or setting on fire. / The state of being inflamed

The condition of being inflammable (usually in the sense of "flammable"). / The extent to which something is inflammable.

plural of inflammation

(nonstandard) Inflamed.

(archaic) inflammatory

In an inflammable manner.