心機一転

• 読み: しんきいってん
• ローマ字: shinki itten
• 漢字の分解: 心 (shin/kokoro) — heart, mind; 機 (ki) — mechanism, opportunity; 一 (ichi/hito) — one; 転 (ten/koro) — to turn, revolve
• 発音: /ɕiŋki it̚te̞ɴ/

意味

Turning over a new leaf; a complete change of mindset; fresh start with renewed determination after a decisive shift in attitude.

A four-character compound (四字熟語 yojijukugo). Literally means 'one revolution of the heart's mechanism.' Used when someone decides to completely reset their mental state and approach life with a fresh attitude — often after a setback, failure, or pivotal life event. Implies active, deliberate renewal rather than passive change. Commonly used at career transitions, new year, or after personal crises.

例文

1. 転職を機に、心機一転して生活習慣を見直した。
2. 失恋後、彼女は心機一転して新しい趣味に打ち込んだ。
3. 新年を迎え、心機一転で仕事に取り組む決意を固めた。

使い方ガイド

場面: self-improvement, career, new year, resilience

トーン: positive

起源と歴史

A yojijukugo of Chinese classical origin. 心機 refers to the workings of the mind (the mechanism/spring of the heart), and 一転 means a complete turn or reversal. Together they describe a total mental pivot.

文化的背景

時代: Modern

世代: All ages

社会的背景: Universal