English Dictionary

rational

IPA（発音記号）

/ˈɹæʃ(ə)nəl/

形容詞

個人的性質 比較不可

Capable of reasoning. / Logically sound; not self-contradictory or otherwise absurd. / (of a person or personal characteristics) Healthy or balanced intellectually; exhibiting reasonableness.

日本語の意味

理性的な / 論理的に正しい / 筋の通った / 知性に富んだ・健全な精神状態の

Even in tense meetings, she remained rational and proposed a clear plan.

緊迫した会議でも、彼女は理性的で明確な計画を提案した。

意味（1）

Capable of reasoning.

Man is a rational creature.

意味（2）

Logically sound; not self-contradictory or otherwise absurd.

His statements were quite rational.

意味（3）

(of a person or personal characteristics) Healthy or balanced intellectually; exhibiting reasonableness.

rational conduct

意味（4）

(mathematics, arithmetic, number theory, not comparable) Of a number, capable of being expressed as the ratio of two integers.

¾ is a rational number, but √2 is an irrational number.

意味（5）

(mathematics, arithmetic, not comparable) Of an algebraic expression, capable of being expressed as the ratio of two polynomials.

意味（6）

(chemistry) Expressing the type, structure, relations, and reactions of a compound; graphic; said of formulae.

意味（7）

(physics) Expressing a physical object.

A rational table is physical, a written table is neither.

more rational （ comparative ）

most rational （ superlative ）