Webster’s Revised Unabridged Dictionary · 1913
Inflammable
In·flam′ma·ble (ĭn·flăm′mȧ·b'l), a. [CF. F. inflammable.] 1. Capable of being easily set fire; easily enkindled; combustible; as, inflammable oils or spirits.
2. Excitable; irritable; irascible; easily provoked; as, an inflammable temper.
Inflammable air, the old chemical name for hydrogen.