筋がいい

• 読み: すじがいい
• ローマ字: suji ga ii
• 漢字の分解: 筋 (suji) — muscle, sinew, talent, logic
• 発音: /sɯ.dʑi.ɡa.iː/

意味

Having an aptitude for something; having natural talent; showing good form or instinct.

An idiomatic expression where 筋 (suji) means 'sinew/line' but metaphorically refers to one's natural talent or instinct. 筋がいい describes someone who picks things up quickly or shows natural ability. Common in sports, martial arts, music, and other skill-based activities. The opposite is 筋が悪い (lacking aptitude). Can also describe ideas: その提案は筋がいい (that proposal has good logic).

例文

1. あの子は筋がいいからすぐ上達するだろう。
2. ピアノを始めたばかりなのに筋がいいと褒められた。
3. この仕事は筋がいい人ならすぐ覚えられる。

使い方ガイド

場面: sports, learning, coaching

トーン: encouraging

起源と歴史

From 筋 (suji, sinew/muscle fibre), which metaphorically extends to mean 'line of reasoning,' 'talent,' or 'natural disposition.' Good 筋 implies well-aligned muscles — the body naturally suited for a task. This physical metaphor expanded to encompass intellectual and artistic aptitude.

文化的背景

時代: Early Modern

世代: All ages

社会的背景: Universal