consisting of, attended with, characterized by, or containing fire

a volcano's fiery discharge.

intensely hot

fiery desert sands.

like or suggestive of fire

a fiery red; angry, fiery eyes.

intensely ardent, impetuous, or passionate

fiery courage; a fiery speech.

easily angered or provoked

a fiery temper.

causing a burning sensation, as certain liquors or condiments.

inflamed, as a tumor or sore.

Mining Older Use .

highly flammable.

containing highly flammable gas.