Last Updated：2025/11/21

The quality or state of being rational; due exercise of reason; reasonableness. / Objective consideration.

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rationality

Source Word

rationality

Noun

uncountable usually

The quality or state of being rational; due exercise of reason; reasonableness. / Objective consideration.

Japanese Meaning

合理性 / 理性 / 客観的に物事を考察する態度

Her rationality guided the committee to a reasonable compromise.

彼女の合理性のおかげで、委員会は妥当な妥協に達した。

Sense（1）

The quality or state of being rational; due exercise of reason; reasonableness.

His sudden loss of rationality was brought on by excess drink.

Sense（2）

Objective consideration.

Such a discussion deserves rationality, not emotional gut reactions.

rationalities

（ plural ）