理性的(りせいてき)

りせいてき
adjective (na)
rational; logical; reasonable
1. rational; logical; reasonable
Describes thinking, behavior, or a person guided by reason rather than emotion or impulse.
理性的(りせいてき)に考(かんが)えよう。
Let's think rationally.
彼(かれ)はいつも理性的(りせいてき)な判断(はんだん)ができる人(ひと)だ。
He's someone who can always make rational judgments.
感情的(かんじょうてき)にならず、理性的(りせいてき)に話(はな)し合(あ)うことが大切(たいせつ)だ。
It's important to discuss things rationally rather than getting emotional.

理性的(りせいてき) is a na-adjective describing thinking or behavior guided by reason rather than emotion.

FORMS:

  • Adverbial: 理性的(りせいてき)に (理性的(りせいてき)に考(かんが)える — to think rationally)
  • Modifier: 理性的(りせいてき)な (理性的(りせいてき)な人(ひと) — a rational person)

COMMON COLLOCATIONS:

  • 理性的(りせいてき)な判断(はんだん): rational judgment
  • 理性的(りせいてき)な対応(たいおう): rational response
  • 理性的(りせいてき)に行動(こうどう)する: to act rationally
  • 理性的(りせいてき)に話(はな)し合(あ)う: to discuss rationally

CONTRAST:

  • 理性的(りせいてき): rational (based on reason)
  • 感情的(かんじょうてき): emotional (based on feelings — opposite)
  • 論理的(ろんりてき): logical (based on logical structure)
  • 合理的(ごうりてき): rational, reasonable (practical efficiency)

WORD FORMATION:
理性(りせい) (reason, rationality) + 的(てき) (suffix making na-adjective).

Related Words

Contrast: 感情的(かんじょうてき) (emotional)
Contrast: 感覚的(かんかくてき) (sensory, intuitive)
general
Added 2026.3.14 22:01 · Revised 2026.4.16 12:08
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