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Proverb / Kotowaza

一長一短

ReadingいっちょういったんRomajiitcho ittan

Everything and everyone has both strong points and weak points; nothing is perfect.

One long, one short.

Quick Answer

Everything and everyone has both strong points and weak points; nothing is perfect.

Literal Image
One long, one short.
Closest Equivalent
Every coin has two sides.
How to Use It
Used when evaluating options, people, or things to acknowledge that they possess both good qualities and flaws, and that no choice is entirely without drawbacks.

Meaning

Every person or thing has both advantages and disadvantages, meaning that nothing is completely flawless. It is also used to describe a situation where two options each have distinct merits and demerits, making it difficult to simply declare one superior to the other.

Literal Image

One long, one short.

Equivalent Proverbs

01
Close✓ Reviewed

Every coin has two sides.

Shares the idea that things have opposing aspects.

02
Close✓ Reviewed

Every bean has its black.

Shares the idea that nothing and no one is completely flawless.

03
Loose✓ Reviewed

Nothing is perfect.

A direct statement of the proverb's core lesson.

04
Loose✓ Reviewed

Pros and cons.

An English idiom for advantages and disadvantages.

How to Use It

Used when evaluating options, people, or things to acknowledge that they possess both good qualities and flaws, and that no choice is entirely without drawbacks.

Tone

Neutral and objective.

Examples

01

A案もB案もそれぞれに「一長一短」があり、どちらを採用すべきか決めかねている。

Plan A and Plan B each have their pros and cons, so I'm having trouble deciding which one to adopt.

02

デジタル化は便利だが、情報漏洩のリスクも高まるため、まさに「一長一短」だと言える。

Digitization is convenient, but it also increases the risk of information leaks, so you could say it definitely has its advantages and disadvantages.

03

彼の性格は、行動力がある点は素晴らしいが、少し強引すぎるところもあり、「一長一短」だ。

As for his personality, it's great that he's proactive, but he can also be a bit too pushy, so he has both good and bad points.

Learning Notes

Key Vocabulary

Estimated LevelN3Confidence: High
Estimate, not an official JLPT list

A four-character idiom (yojijukugo) using basic kanji representing 'one long, one short' to express strengths and weaknesses.

一長

いっちょう / itcho

one strength; one advantage

一短

いったん / ittan

one weakness; one disadvantage

Usage Profile

NeutralCautionaryThis proverb is yojijukugo.?Yojijukugo is a Japanese four-kanji expression that works as one fixed phrase.

Misread Risk

Do not translate it literally as measuring length; it refers specifically to the presence of both merits (long/strong points) and demerits (short/weak points).

Search As

一長一短いっちょういったんitcho ittanitcho-ittan

Kanji in This Proverb

Related Proverbs

Entry available痛し痒しitashi kayushiA dilemma where every available option leads to some inconvenience or problem.
Similar一利一害Means there is both a benefit and a harm.
Similar両刃の剣
Similar帯に短し襷に長しMeans something is useless for either purpose because it is in-between, contrasting with itcho ittan, which affirms that there are still good points.

Origin

This expression derives directly from its kanji composition, forming a parallel phrase that means 'if there is one strength, there is one weakness.' The ancient Chinese philosophical text Lunheng (論衡) contains the phrase '一短一長' in a context discussing how people's talents and natures are uneven, meaning no one is completely flawless. From this realistic recognition that perfection does not exist, it became established as an expression used to view things from multiple perspectives.

Index

Topics, Situations, and Tags

01

Topics

Truth and Appearances
02

Situations

Compare People or Things
03

Tags

⚔️Life & General Wisdom🎯Strategy & Tactics🔢Numbers

Source Note

Where did this entry get its data from? The reference links are listed below. To understand how to read this section, see Data Sources.

Published
2025-12-18
Updated
2026-05-08
Source 1: tomomi965.comSource 2: tomomi965.comSource 3: tomomi965.comSource 4: tomomi965.comKanji Vocabulary: Kanji.Jepang.orgAbout Data SourcesReport a Correction

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