|Origin:||ferox 'wild-looking', from ferus 'wild'|
violent, dangerous, and frightening:
a ferocious, hungry lion
a ferocious battle
The storm grew more and more ferocious with each second.
very strong, severe, and unpleasant:
The congressman is one of the President's most ferocious critics.
The heat was ferocious.
He is famous for his ferocious temper.
relating to an emotion that is felt very strongly:
Parker was driven by a ferocious determination to succeed.