Fierce
Vicious
Synonyms Ferocious, vicious, feral, undomesticated, bloodthirsty, cruel, murderous, threatening, grim, competitive, intense, relentless, savage, wild, untamed, aggressive, dangerous, brutal, menacing, terrible, cut-throat, keen, and strong.
Violent
Synonyms Powerful, violent, bitter, blustery, boisterous, raging, turbulent, cyclonic, destructive, strong, forceful, stormy, gusty, tempestuous, furious, tumultuous, typhonic, and devastating.
Competitive
Synonyms Aggressive, competitive, intense, relentless, vehement, impassioned, fervid, flaming, uncontrolled, intemperate, cut-throat, keen, strong, powerful, passionate, fervent, fiery, ardent, immoderate, and inordinate.
Example Sentences
The competition was fierce this year.
She had a fierce determination to succeed.
The storm brought fierce winds overnight.
He showed a fierce loyalty to friends.