理性的(りせいてき)な

りせいてきな
na-adjective
rational; reasonable; level-headed
1. rational; reasonable; level-headed
Describes a person, attitude, or approach guided by reason and logic rather than emotions or impulses.
理性的(りせいてき)に行動(こうどう)する。
To act 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 is 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.

Composed of 理性(りせい) (reason, rationality) + 的(てき) (suffix making na-adjectives). Describes the quality of being governed by reason rather than emotion.

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)な行動(こうどう): rational behavior
  • 理性的(りせいてき)な人(ひと): a rational person
  • 理性的(りせいてき)に考(かんが)える: to think rationally
  • 理性的(りせいてき)に対処(たいしょ)する: to deal with something rationally

CONTRAST:

  • 理性的(りせいてき)な ↔ 感情的(かんじょうてき)な: rational vs. emotional

SIMILAR WORDS:

  • 合理的(ごうりてき)な: rational, logical — focuses on efficiency and logical consistency rather than emotional control
  • 冷静(れいせい)な: calm, composed — emphasizes remaining calm under pressure; overlaps with 理性的(りせいてき) but focuses more on composure
  • 論理的(ろんりてき)な: logical — focuses on the structure of reasoning and arguments
general
Added 2026.4.1 0:30
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