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Proverb / Kotowaza

百害あって一利なし

ReadingひゃくがいあっていちりなしRomajihyakugai atte ichiri nashi

There is only harm and no benefit whatsoever.

One hundred harms and not one benefit

Quick Answer

There is only harm and no benefit whatsoever.

Literal Image
One hundred harms and not one benefit
How to Use It
Used when criticizing harmful habits or negative behaviors, such as smoking or gambling, to point out that they have no merit.

Meaning

This expression describes a situation, habit, or action that brings many negative consequences without providing a single advantage. It is used to emphasize that something is entirely detrimental and lacks any redeeming quality.

Literal Image

One hundred harms and not one benefit

How to Use It

Used when criticizing harmful habits or negative behaviors, such as smoking or gambling, to point out that they have no merit.

Tone

Can be used in a critical or cautionary tone to warn against or condemn harmful actions.

Examples

01

タバコは、百害あって一利なしとはよく言ったもので、健康に悪影響しかない。

People say that smoking has a hundred harms and not one benefit; it only has a negative impact on health.

02

ギャンブルは、百害あって一利なしだ。身を滅ぼす前にやめておいた方がいい。

Gambling brings a hundred harms and not a single benefit. You should stop before you ruin yourself.

Learning Notes

Key Vocabulary

Estimated LevelN2Confidence: Medium
Estimate, not an official JLPT list

While the individual kanji for 'harm' and 'benefit' are straightforward, the length of the phrase and its idiomatic nature make it more complex.

百害

ひゃくがい / hyakugai

one hundred harms; many evils

一利

いちり / ichiri

one benefit; a single advantage

なし

nashi

none; non-existent

Usage Profile

NeutralCautionaryCritical

Usage note: This is a very strong statement; use it only when something is truly viewed as having no redeeming qualities.

Misread Risk

The number 'one hundred' is metaphorical for 'many,' not a literal count of 100 specific harms.

Search As

百害あって一利なしひゃくがいあっていちりなしhyakugai atte ichiri nashihyakugai-atte-ichiri-nashihyakugaiatteichirinashi

Kanji in This Proverb

Related Proverbs

Similar有害無益
Similar害こそあれ益なし

Origin

The exact origin of this phrase is unclear, though it is known to have been used since the Edo period.

Index

Topics, Situations, and Tags

01

Topics

Cause and ConsequenceCaution and RiskLife and Health
02

Situations

Warn SomeoneExplain Consequences
03

Tags

⚠️Warnings & Caution⚔️Life & General Wisdom☯️Karma & Consequences

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
2024-09-17
Updated
2026-05-08
Source 1: tomomi965.comAbout Data SourcesReport a Correction

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