Adjective
1. marked by extreme and violent energy;
"a ferocious beating""fierce fighting""a furious battle"2. marked by extreme intensity of emotions or convictions; inclined to react violently; fervid;
"fierce loyalty""in a tearing rage""vehement dislike""violent passions"3. ruthless in competition;
"cutthroat competition""bowelless readiness to take advantage"4. violently agitated and turbulent;
"boisterous winds and waves""the fierce thunders roar me their music"- Ezra Pound"rough weather""rough seas"