fiery

UK: /ˈfaɪəri/ US: /ˈfaɪri/ ,(fī^ər′ē, fī′ə rē)

Inflections of 'fiery' (adj):

fierier

adj comparative

fieriest

adj superlative

WordReference Random House Learner's Dictionary of American English © 2025

fier•y /ˈfaɪri/   adj., -i•er, -i•est. 

1. made up of, characterized by, or containing fire;
   intensely hot:
   the fiery pits of hell.
2. like or suggestive of fire:
   a fiery chili sauce.
3. intensely ardent or passionate:
   a fiery speech.
4. easily angered or provoked:
   a fiery temper.

fier•i•ness, n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2025

fier•y  (fī^ər′ē, fī′ə rē), adj., fier•i•er, fier•i•est. 

1. consisting of, attended with, characterized by, or containing fire:
   a volcano's fiery discharge.
2. intensely hot:
   fiery desert sands.
3. like or suggestive of fire:
   a fiery red; angry, fiery eyes.
4. intensely ardent, impetuous, or passionate:
   fiery courage; a fiery speech.
5. easily angered or provoked:
   a fiery temper.
6. causing a burning sensation, as certain liquors or condiments.
7. inflamed, as a tumor or sore.
8. [Mining Older Use.]
   • highly flammable.
   • containing highly flammable gas.

• Middle English fi(e)ry. See fire, -y¹ 1225–75

fier′i•ly, adv. 
fier′i•ness, n. 
Synonyms

• 3. flaming, flashing, glowing, burning.
• 4. fervent, vehement, spirited, impassioned.

Antonyms

• 2, 3.
• 4. cool, cold.
• 4. dispassionate.

Collins Concise English Dictionary © HarperCollins Publishers::

fiery / ˈfaɪərɪ/ adjective (fierier, fieriest)

1. of, containing, or composed of fire
2. resembling fire in heat, colour, ardour, etc: a fiery desert wind, a fiery speaker
3. easily angered or aroused: a fiery temper
4. (of food) producing a burning sensation: a fiery curry
5. (of the skin or a sore) inflamed
6. flammable or containing flammable gas

ˈfierily adverb

ˈfieriness noun