凶恶 (xiōng è): жестокий

That fierce big dog suddenly rushed out of the yard, frightening the children into loud crying.

The pirate in the movie has a fierce face, but he is actually kind-hearted and often helps the poor.

The police quickly subdued the fierce criminal, and only then did the onlooking crowd breathe a sigh of relief.

Grandpa said that when he was young, he saw a fierce wolf whose eyes glowed green in the night, making people shiver with fear.

Although he speaks loudly and has a fierce expression, his colleagues all know that he is warm-hearted.