FIERCE, n. fers. [L. ferus, ferox, the primary sense of which is wild, running, rushing.]1. Vehement; violent; furious; rushing; impetuous; as a fierce wind.2. Savage; ravenous; easily enraged; as a fierce lion.3. Vehement in rage; eager of mischief; as a fierce tyrant; a monster fierce for blood.4. Violent; outrageous; not to be restrained.Cursed be their anger, for it was fierce. Gen. 49.5. Passionate; angry; furious.6. Wild; staring; ferocious; as a fierce countenance.7. Very eager; ardent; vehement; as a man fierce for his party.