fierce
adjective
marked by extreme and violent energy
“a ferocious beating”
“fierce fighting”
marked by extreme intensity of emotions or convictions; inclined to react violently; fervid
“fierce loyalty”
“in a tearing rage”
ruthless in competition
“cutthroat competition”
“bowelless readiness to take advantage”
violently agitated and turbulent
“boisterous winds and waves”
“the fierce thunders roar me their music”
Source: WordNet 3.1, Princeton University
