Question about a kanji?

Question

What's the kanji for "hardcore"?

Answer 1

That depends on what context you're talking about.

If it's just 'hardcore' then it is ハードコア

You pronunce it like 'haa-doh-co-uh' in English.

Answer 2

sujiganeiri

筋金入り

Only type I know.  But do you mean someone who is a die hard or enthused fan?

I would say, "She is so hardcore" like, she is really into the object, then maybe nekkyou 熱狂

But, "he is so hardcore" like he is very cool, then maybe kakkoi 格好いい