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一丝不苟 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
一丝不苟yìsībùgǒunot one thread loose (idiom); strictly according to the rulesHSK 7, i, rank #19635, Hard, education, daily life, formal, literary, workplace, stative
一丝不苟yìsībùgǒumeticulousHSK 7, i, rank #19635, Hard, daily life, stative
一丝不苟yìsībùgǒunot one hair out of placeHSK 7, i, rank #19635, Hard, daily life, formal, stative
yìsībùgǒu(yi4si1bu4gou3) T1
  1. 1not one thread loose (idiom); strictly according to the rules
  2. 2meticulous
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March 24, 2026
一丝不苟(一絲不苟)yìsībùgǒu(yi4si1bu4gou3)

一丝不苟 is an idiom that describes someone who is meticulous and pays great attention to detail. It implies that a person does their work with precision and does not overlook even the smallest aspects, ensuring everything is done correctly and according to the rules.

Frequency#19635DifficultyHard
Cultural Note

In Chinese culture, meticulousness is often seen as a virtue, especially in professions that require precision, such as engineering or traditional crafts. The concept reflects a broader societal value placed on hard work and attention to detail.

Memory Tip

Imagine a tailor meticulously stitching a suit, ensuring that not even one thread is out of place. The phrase '一丝不苟' reflects this level of care and precision, where '一丝' (one thread) signifies attention to minute details, and '不苟' (not loose) suggests strict adherence to standards.

Meanings of 一丝不苟

yìsībùgǒu(yi4si1bu4gou3)
1not one thread loose (idiom); strictly according to the rules
2meticulous
Exercise 1 of 2

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About 一丝不苟

一丝不苟Simplified
一絲不苟Traditional
Strokes
Radical
成语chéngyǔidiom (id.)Part of Speech
#19635Frequency Rank
HSK 2.0L6HSK 3.0L7HSKKL3CEFRC1

Podcast: 一丝不苟

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Podcast: 一丝不苟

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AI Study Notes for 一丝不苟

Quick Contrast

细致入微 (xìzhìrùwēi) — use 一丝不苟 when emphasizing strict adherence to rules and precision, while 细致入微 focuses on thoroughness and depth of detail.

Memory Mnemonic

Imagine a tailor meticulously stitching a suit, ensuring that not even one thread is out of place. The phrase '一丝不苟' reflects this level of care and precision, where '一丝' (one thread) signifies attention to minute details, and '不苟' (not loose) suggests strict adherence to standards.

Usage Notes

This idiom is commonly used in both formal and informal contexts to commend someone's thoroughness, especially in professional environments. A common mistake is to use it in a casual setting, where simpler terms might suffice. Be careful with the tone as it should convey respect and admiration.

HSK Study Tips

As an HSK Level 6 idiom, 一丝不苟 connects well with other expressions that emphasize diligence and quality, such as 精益求精 (striving for excellence). Students should focus on understanding its usage in professional settings and practice applying it in context.

Cultural Note

In Chinese culture, meticulousness is often seen as a virtue, especially in professions that require precision, such as engineering or traditional crafts. The concept reflects a broader societal value placed on hard work and attention to detail.

Common Mistakes

Learners often confuse 一丝不苟 with less formal expressions of care, leading to phrases that lack the same level of respect. For example, saying someone is '非常仔细' (very careful) instead of using the idiom can dilute the intended praise.

AI-enhanced 2026-03-24

Pronunciation of 一丝不苟

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Idiom Spotlight: 一丝不苟

Chengyu Origin Story
Literal meaning:one strand not careless

Component Characters

one
HSK 11 strokes
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silk
HSK 75 strokes
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(negative prefix)
HSK 14 strokes
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Gǒuif
8 strokes
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Write 一丝不苟

Practice writing 一丝不苟 stroke by stroke. Watch the animation to learn the stroke order, then try writing it yourself.

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Grammar Patterns of 一丝不苟

一丝不苟 functions as a four-character idiom (成语). Treat it as a fixed unit; it usually plays the role of a single adjective, adverb, or noun phrase inside the larger sentence. It carries 3 related meanings, each with its own usage notes below. The patterns below break down its most common sentence frames, with example sentences and practice buttons (Listen, Practice Writing, Practice Speaking) for each one.

一丝不苟+的+N一丝不苟 + 的 + [Noun]
HSK 6

Used to describe something done meticulously or with strict adherence to rules.

一丝不苟的工作

yī sī bù gǒu de gōng zuò

meticulous work

一丝不苟+V一丝不苟 + [Verb]
HSK 6

Used to describe the action of doing something meticulously.

他做事一丝不苟

tā zuò shì yī sī bù gǒu

He does his work meticulously.

Exercise 1 of 2

Complete the Pattern

____ + 的 + [Noun]

Used to describe something done meticulously or with strict adherence to rules.

Usage Notes for 一丝不苟

Confusing with similar idiomsCommon Error

Learners often confuse '一丝不苟' with '马马虎虎', which means careless or sloppy.

1

不要马马虎虎,应该一丝不苟。

Don't be careless; you should be meticulous.

Formal usageregister

'一丝不苟' is typically used in formal contexts, such as academic or professional settings.

1

在学术研究中,要求一丝不苟。

In academic research, meticulousness is required.

Exercise 1 of 1

Fill in the Blank

不要马马虎虎,应该____。

Don't be careless; you should be meticulous.

Example Sentences for 一丝不苟 (1)

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1
他一丝不苟,带着几分学究气。

tā yī sī bù gǒu, , dài zháo jī fēn xué jiū。

He is precise and mildly donnish in manner.

Cultural Notes for 一丝不苟

💡Did you know?

The idiom '一丝不苟' originates from the meticulous habits of ancient scholars who were known for their scrupulous attention to detail in their studies and writings. It reflects the value placed on precision and thoroughness in Chinese culture.

🏮Cultural insight

In Chinese culture, meticulousness is often seen as a virtue, especially in professions that require precision, such as engineering or traditional crafts. The concept reflects a broader societal value placed on hard work and attention to detail.

📜Proverb

细节决定成败 (Xìjié juédìng chéngbài) - The details determine success or failure, emphasizing the importance of being meticulous.

📜Proverb

事事如意,事无大小都要一丝不苟。 (Everything goes well when one is meticulous in every detail.)

📜Proverb

严谨治学,方能成才 (Only by being rigorous in study can one succeed.) - This proverb reflects the importance of meticulousness in achieving success.

📜Proverb

严谨治学,方能有所成就 (Being rigorous in one's studies leads to success.)

🌏Cross-cultural Insight

In Western cultures, being meticulous is often associated with perfectionism, whereas in Chinese culture, it reflects a deep respect for quality and thoroughness in one's work. The phrase 'meticulous' may not carry the same cultural weight as '一丝不苟', which embodies a value for diligence and responsibility.

Frequently Asked Questions about 一丝不苟

Some synonyms for 一丝不苟 include 精益求精 (jīng yì qiú jīng), which means striving for excellence, and 一丁点不差 (yī dīng diǎn bù chā), meaning not a bit off. These expressions also emphasize attention to detail and precision in work.