'Viciously' in the Bible

Even though enemies attacked him, shooting at him and pursuing him viciously,

Our ancestors went down to Egypt, where we lived for many years. But the Egyptians treated us and our ancestors viciously.

My enemies hunted me like a bird, viciously and without justification.

"After this, I continued to observe the night visions. And look! there was a fourth awe-inspiring, terrifying, and viciously strong animal! It had large, iron teeth. It devoured and crushed things, and trampled under its feet whatever remained. Different from all of the other previous animals, it had ten horns.