Definition of Fierce

Adjective: fierce (fiercer,fiercest) feers

Marked by extreme and violent energy
"fierce fighting";
- ferocious, furious, savage
Marked by extreme intensity of emotions or convictions; inclined to react violently; fervid
"fierce loyalty";
- tearing, vehement, violent, trigger-happy
Ruthless in competition
"fierce competition";
- cutthroat, bowelless
Violently agitated and turbulent
"the fierce thunders roar me their music";
- boisterous, rough