Synonym Nuance VS
How to say "Reason" in Japanese
Both words can translate to "reason", but which should you choose?
Japanese Option A
理性
りせい (risei)
N3 / CEFR Syllabus
VS
Japanese Option B
理
ことわり
C2PLUS / CEFR Syllabus
Nuance Contrast & Translation Difference
When translating "reason" into Japanese, you must choose carefully between 理性 and 理.
In Japanese, 理性 (りせい (risei)) is typically associated with "reason; intellect; self-control; sanity; rational mind" (Syllabus Level: N3) and represents Refers to reason, intellect, self-control, sanity, or the rational mind that suppresses emotional impulses to make logical and moral decisions. Often used as 理性を失う.
On the other hand, 理 (ことわり) maps to "reason; principle; logic; truth (classical usage)" (Syllabus Level: C2PLUS) and represents Essential structural term in CEFR C2PLUS vocabulary syllabus.. A literal translation of "reason" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "理性"
激しい怒りを感じたとしても、感情のままに行動せず、_______を保って冷静に対処することが求められます。
Even if one feels intense anger, they are required to maintain reason and handle it calmly without acting on emotion.
Bilingual Context for "理"
私は理に興味があります。
I am interested in reason; principle; logic; truth (classical usage).
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "激しい怒りを感じたとしても、感情のままに行動せず、_______を保って冷静に対処することが求められます。" (Meaning: "Even if one feels intense anger, they are required to maintain reason and handle it calmly without acting on emotion.")
🎉 Correct Answer!
Remember: "理性" fits here because it means "reason; intellect; self-control; sanity; rational mind" in the context of: "Even if one feels intense anger, they are required to maintain reason and handle it calmly without acting on emotion.". "理" represents "reason; principle; logic; truth (classical usage)".