1. superlative form of fiery; most burning or blazing with fire
2. superlative form of fiery; most passionate, intense, or spirited in emotion or temperament
3. superlative form of fiery; most bright red or orange in color

Examples

• The fieriest part of the furnace reached over 2000 degrees.
• She gave the fieriest speech of her political career.
• His fieriest temper emerged when he was criticized.
• The sunset displayed the fieriest colors we had ever seen.
• The fieriest peppers in the garden were too hot to eat.
• Among all the debaters, she had the fieriest personality.
• The fieriest flames shot up from the center of the bonfire.