肝心

• 読み: かんじん
• ローマ字: kanjin
• 漢字の分解: 肝 (kan) — liver; 心 (jin/shin) — heart, core
• 発音: /ka.ɴ.dʑiɴ/

意味

Essential; crucial; vital; the most important point of something.

A na-adjective emphasising the core or most critical aspect of a matter. Frequently appears in the pattern 肝心なのは (the crucial thing is…) or 肝心なところで (at the critical moment). Often used when highlighting what truly matters versus peripheral details. The variant 肝腎 exists but 肝心 is far more common.

例文

1. 肝心なのは結果ではなく過程だと思う。
2. 肝心なところでいつもミスをしてしまう。
3. 説明は長かったが肝心な部分が抜けていた。

使い方ガイド

場面: daily life, business, academics, advice

トーン: serious

起源と歴史

From Sino-Japanese 肝 (kan, liver) + 心 (jin/shin, heart). In traditional Chinese medicine, the liver and heart were considered the two most vital organs — hence 'liver-heart' came to mean the most essential thing.

文化的背景

時代: Classical

世代: All ages

社会的背景: Universal