|Origin:||fiers, from Latin ferus 'wild'|
done with a lot of energy and strong feelings, and sometimes violent:
fierce fighting in the city
fierce attack/opposition/criticism etc
The government's policies came under fierce attack.
a fierce debate
fierce competition between the companies
a fierce person or animal is angry or ready to attack, and looks very frightening:
fierce guard dogs
She turned round, looking fierce.
fierce emotions are very strong and often angry:
These people take fierce pride in their independence.
fierce cold, heat, or weather is much colder, hotter etc than usual:
a fierce wind
5 American English spoken
more loudly, strongly etc than usual:
It was snowing something fierce.
—fierceness noun [uncountable]