Adjective fierce has 4 senses
- ferocious, fierce, furious, savage - marked by extreme and violent energy; "a ferocious beating"; "fierce fighting"; "a furious battle"
Antonym: nonviolent (indirect, via violent)
- fierce, tearing, vehement, violent, trigger-happy - marked by extreme intensity of emotions or convictions; inclined to react violently; fervid; "fierce loyalty"; "in a tearing rage"; "vehement dislike"; "violent passions"
Antonym: mild (indirect, via intense)
- cutthroat, fierce, bowelless - ruthless in competition; "cutthroat competition"; "bowelless readiness to take advantage"
Antonym: merciful (indirect, via merciless)
- boisterous, fierce, rough - violently agitated and turbulent; "boisterous winds and waves"; "the fierce thunders roar me their music"- Ezra Pound; "rough weather"; "rough seas"
Antonym: calm (indirect, via stormy)
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