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一不小心 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
一不小心to be a little bit careless; to have a moment of inattentiveness; accidentallyHSK 7, unknown, 12 strokes, rank #16894, Very Hard
  1. 1to be a little bit careless; to have a moment of inattentiveness; accidentally
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March 24, 2026

一不小心

The idiom 一不小心 (yī bù xiǎo xīn) translates to 'without thinking' or 'carelessly'. It is used to describe actions taken without caution or attention, often leading to unintended consequences. This phrase is commonly used in both spoken and written contexts to express regret over a mistake made due to a lack of carefulness.

Strokes12Frequency#16894DifficultyVery Hard
Cultural note

In Chinese culture, being careful and attentive is highly valued, and this idiom reflects the common understanding that mistakes can happen when one is distracted. It serves as a reminder of the importance of mindfulness in daily activities.

Memory tip

Imagine you are walking along a path and suddenly trip over a rock because you weren't paying attention. The phrase 一不小心 captures that moment of carelessness where '一' (one) represents a single mistake and '不小心' (not careful) reflects your lack of attention.

Meanings of 一不小心

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In English

What does 一不小心 mean in English?

一不小心

About 一不小心

一不小心Simplified
12Strokes
—Radical
#—Frequency Rank
HSK 3.0L7AdvancedCEFRC2

Podcast: 一不小心

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Podcast: 一不小心

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AI study notes for 一不小心

Quick Contrast

不小心 (bù xiǎo xīn) - use 一不小心 when emphasizing the unexpected nature of the mistake.

Usage Notes

This idiom is typically used in informal contexts when discussing mistakes. A common mistake is to use it in overly formal writing, so it's best reserved for conversational settings. Be aware of the tone; it carries a sense of lightheartedness about the error.

HSK Study Tips

While this idiom may not appear in the HSK vocabulary lists, it is useful for learners aiming for conversational fluency. Focus on recognizing its usage in dialogues and practice incorporating it into your own speech when discussing experiences or mistakes.

Common Mistakes

Learners often misplace this idiom in formal discussions, saying something like '在正式场合,我一不小心' (In formal occasions, I carelessly...). The correct context would be in informal conversations instead.

AI-enhanced 2026-03-24

Pronunciation of 一不小心

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Idiom spotlight: 一不小心

Chengyu origin story
Literal meaning:one not careful

Component characters

一yīone
HSK 11 strokes一
View full entry
不bù(negative prefix)
HSK 14 strokes一
View full entry
小xiǎosmall
HSK 13 strokes小
View full entry
心xīnheart
HSK 44 strokes心
View full entry

How to say to be a little bit careless; to have a moment of inattentiveness; accidentally in Chinese

“to be a little bit careless; to have a moment of inattentiveness; accidentally” in Chinese is一不小心

The idiom 一不小心 (yī bù xiǎo xīn) translates to 'without thinking' or 'carelessly'. It is used to describe actions taken without caution or attention, often leading to unintended consequences. This phrase is commonly used in both spoken and written contexts to express regret over a mistake made due to a lack of carefulness.

When to use 一不小心

This idiom is typically used in informal contexts when discussing mistakes. A common mistake is to use it in overly formal writing, so it's best reserved for conversational settings. Be aware of the tone; it carries a sense of lightheartedness about the error.

一不小心 or something close to it

不小心 (bù xiǎo xīn) - use 一不小心 when emphasizing the unexpected nature of the mistake.

What learners get wrong

Learners often misplace this idiom in formal discussions, saying something like '在正式场合,我一不小心' (In formal occasions, I carelessly...). The correct context would be in informal conversations instead.

Write 一不小心

一
不
小
心

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Cultural Notes for 一不小心

🌏Cross-cultural Insight

In Western cultures, there is often a stronger emphasis on personal responsibility for mistakes, whereas Chinese culture may lean more towards understanding that errors are a part of life.

Frequently asked questions about 一不小心

No, 一不小心 is generally used in informal contexts and is better suited for conversations.

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