Explanation:

Fierceness means agility and courage, and fierceness and strength mean describing a strong body, quick action and generous personality.

Antonyms: cowardice, cowardice and incompetence.

Synonym: tough and powerful.

Sentence: Seeing an evil security uncle in front of the bank, grandpa who took the money was relieved.

The ancient nomadic people were vigorous and strong in constitution and warm and generous in character.