火爆 (huǒ bào): 熱い （ 気質 ）

He has a fiery temper; as soon as he hears an unreasonable request, he immediately loses his temper.

That manager has a fiery personality and often pounds the table and criticizes subordinates during meetings.

Although she is usually gentle, she can also become fiery when encountering unfair things.

Grandpa had a fiery temper when he was young, but now that he is older, he has become much gentler instead.