na-adjective
Used as a na-adjective to describe something extreme, uncompromising, or intense, often in subcultures or serious contexts.
彼はハードコアなゲーマーだ。
He is a hardcore gamer.
このトレーニングはかなりハードコアだ。
This training is pretty hardcore.
noun
hardcore music; hardcore punk
Refers to the aggressive subgenre of punk rock or related extreme music styles.
彼はハードコアバンドのボーカルをしている。
He is the vocalist of a hardcore band.
noun
hardcore pornography
Explicit, graphic sexual content; often used in media or legal contexts.
そのサイトはハードコアな内容を含んでいる。
That site contains hardcore content.
noun
hard core; die-hard members; inner circle
The most committed, active, or extreme members of a group, movement, or organization.
その政党のハードコアな支持者は減っていない。
The hard core supporters of that political party have not decreased.