理 性 的(りせいてき)な

りせいてきな

na-adjective

rational; reasonable; level-headed

cognition personality

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

Similar words

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

Related Words

Compare: 合理的(ごうりてき) (rational, logical)

Compare: 冷静(れいせい) (calm, composed)

Compare: 論理的(ろんりてき) (logical)

general

Added 2026.4.1 0:30 · Revised 2026.9.2 13:02

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