<p><strong>Adjective</strong></p><ul><li>fier·i·er</li><li>fier·i·est</li><li>consisting of, attended with, characterized by, or containing fire: a volcano's fiery discharge</li><li>intensely hot: fiery desert sands</li><li>like or suggestive of fire: a fiery red; angry, fiery eyes</li><li>intensely ardent, impetuous, or passionate: fiery courage; a fiery speech</li><li>easily angered or provoked: a fiery temper</li><li>causing a burning sensation, as certain liquors or condiments</li><li>inflamed, as a tumor or sore</li><li>highly flammable</li><li>containing highly flammable gas</li></ul><p><strong>Synonyms</strong></p><ul><li>burning</li><li>glowing</li><li>flaming</li><li>impassioned</li><li>spirited</li><li>vehement</li><li>fervent</li></ul><p><strong>Antonyms</strong></p><ul><li>cold</li><li>cool</li><li>dispassionate</li></ul>