Feisty vs. Fierce

Feisty and Fierce Definitions
Feisty
Full of spirit or determination; plucky or spunky
"Feisty, smart, and courageous child protagonists ... populate [her] fictional world" (Carolyn L. Shute). See Note at andiron.
Fierce
Hostile and violent, especially by nature or temperament; ferocious
The Huns were fierce warriors.
Feisty
Quarrelsome or aggressive
"A bunch of guys got tipsy ... One of them got feisty and starting swinging punches at the others" (Didi Emmons).
Fierce
Characterized by or showing hostility
Gave us a fierce look.
Feisty
Tenacious, energetic, spunky.
Fierce
Extremely powerful or destructive
A fierce storm.
A fierce flood.
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Feisty
Belligerent; prepared to stand and fight, especially in spite of relatively small stature or some other disadvantage.
Fierce
Intense in activity or feeling; vigorous or ardent
A fierce debate.
Fierce loyalty.
Feisty
Easily offended and ready to bicker.
Fierce
Exceedingly violent, severe, ferocious, cruel or savage.
A fierce storm battered the coast.
I felt a fierce loyalty to my family.
Feisty
Showing courage;
The champion is faced with a feisty challenger
Fierce
Resolute or strenuously active.
We made a fierce attempt to escape.
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Feisty
Irritable and looking for trouble;
Too touchy to make judicious decisions
Fierce
Threatening in appearance or demeanor.
The lion gave a fierce roar.
Fierce
Excellent, very good.
Q: "How was the party last night?" A: "Fierce!"
Fierce
Of exceptional quality, exhibiting boldness or chutzpah.
Tyra said to strike a pose and make it fierce.
Fierce
Extremely; very.
It was fierce cold last night.
Fierce
Furious; violent; unrestrained; impetuous; as, a fierce wind.
His fierce thunder drove us to the deep.
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Fierce
Vehement in anger or cruelty; ready or eager to kill or injure; of a nature to inspire terror; ferocious.
The fierce foe hung upon our broken rear.
Thou huntest me as a fierce lion.
Fierce
Excessively earnest, eager, or ardent.
Fierce
Marked by extreme and violent energy;
A ferocious beating
Fierce fighting
A furious battle
Fierce
Marked by extreme intensity of emotions or convictions; inclined to react violently; fervid;
Fierce loyalty
In a tearing rage
Vehement dislike
Violent passions
Fierce
Ruthless in competition;
Cutthroat competition
Bowelless readiness to take advantage
Fierce
Violently agitated and turbulent;
Boisterous winds and waves
The fierce thunders roar me their music
Rough weather
Rough seas