passionate person; enthusiast
Refers to a person who is deeply passionate or enthusiastic about something, often used in contexts like hobbies, work, or causes.
彼は仕事に対して情熱家だ。
He is a passionate person about his work.
あの情熱家は毎日ギターを練習している。
That enthusiast practices guitar every day.
Compound of 情熱 (passion) + 家 (person suffix), literally 'passion person'.