知性

ちせい

intelligence

JLPT N1

Character Breakdown

Meaning and Usage

"知性" (ちせい) refers to intellectual ability or intelligence, often emphasizing rational thinking and wisdom rather than just knowledge or information. It is a formal noun used in contexts discussing mental capacity, reasoning, or cultured behavior.

Common Contexts

You will often see "知性" used when describing someone's personality or qualities, especially in contrast to mere knowledge or emotional traits. For example, a person can be praised for their "知性" when they show thoughtful insight or refined judgment.

Collocations and Patterns

  • 知性を磨く: to cultivate or improve one's intelligence or intellect.
  • 知性と感情: intelligence and emotion, often contrasted.
  • 知性のある人: an intelligent or intellectual person.

Register and Nuance

"知性" is somewhat formal and often used in written language, academic discussions, or polite speech. It is less common in casual conversation where simpler words like "頭がいい" (smart) might be used.

Common Mistake

Learners sometimes confuse "知性" with "知識" (knowledge). Remember, "知性" focuses on intellectual capacity and reasoning ability, while "知識" is about the information or facts one knows.

Example Sentences

かのじょはちせいとユーモアをかねそなえている。

She possesses both intelligence and humor.

ちせいをみがくためにまいにちほんをよんでいる。

I read books every day to cultivate my intelligence.

ちせいのあるかいわはにんげんかんけいをふかめる。

Conversations with intelligence deepen human relationships.