著しい

いちじるしい

remarkable, considerable

JLPT N1

Character Breakdown

Meaning and Usage

The adjective 著しい (いちじるしい) is used to describe something that is remarkable, significant, or considerable in degree or extent. It often emphasizes a clear and noticeable difference or change.

Common Contexts

You will frequently see 著しい used in formal or written contexts such as news reports, academic writing, or business discussions to highlight important changes or results.

Collocations and Patterns

  • 著しい変化 (いちじるしいへんか): remarkable change
  • 著しい向上 (いちじるしいこうじょう): remarkable improvement
  • 著しい差 (いちじるしいさ): significant difference

These collocations emphasize measurable or observable differences.

Nuance and Register

著しい carries a formal tone and is less common in casual conversation. It implies a strong, often measurable impact or difference rather than a subtle one.

Common Learner Mistake

Learners sometimes confuse 著しい with similar adjectives like すごい or すばらしい, which are more casual and subjective. 著しい is more objective and used to describe clear, often quantifiable changes or effects.

Example Sentences

かれのせいせきは いちじるしく こうじょうした。

His grades improved remarkably.

いちじるしい へんかが しゃかいに あらわれている。

Remarkable changes are appearing in society.

このちいきでは いちじるしい けいざいせいちょうが みられる。

Considerable economic growth can be seen in this region.