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不知不觉 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
不知不觉bùzhībùjuéunconsciouslyHSK 7, unknown, 25 strokes, rank #12599, Very Hard
不知不觉bùzhībùjuéunwittinglyHSK 7, unknown, 25 strokes, rank #12599, Very Hard
bùzhībùjué(bu4zhi1bu4jue2)bu zhi bu jue T4
  1. 1unconsciously
  2. 2unwittingly
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March 24, 2026

不知不觉(不知不覺)bùzhībùjué(bu4zhi1bu4jue2)

不知不觉 is an idiomatic expression that means to do something unconsciously or without realizing it. It often conveys the idea that time has passed or events have occurred without one's awareness, commonly used in contexts related to habits or changes that happen gradually.

Strokes25Frequency#12599DifficultyVery Hard
Cultural note

This idiom reflects a common theme in Chinese culture regarding the passage of time and self-awareness. It can often be used in discussions about personal growth, habit formation, or when reminiscing about the past.

Memory tip

Imagine a person who is so absorbed in a book that they forget the time and their surroundings. The characters 不 (bu) and 知 (zhi) represent 'not knowing,' while 不 (bu) and 觉 (jue) represent 'not noticing.' Together, they paint a picture of someone who is unaware of their environment, much like being lost in thought.

Meanings of 不知不觉

bùzhībùjué(bu4zhi1bu4jue2)
1unconsciously
2unwittingly
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About 不知不觉

不知不觉Simplified
不知不覺Traditional
25Strokes
—Radical
#—Frequency Rank
HSK 3.0L7AdvancedTOCFLL5CEFRC2

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AI study notes for 不知不觉

Quick Contrast

无意中 (wúyìzhōng, inadvertently) — use 不知不觉 when emphasizing the unconscious passage of time or gradual change, while 无意中 focuses more on the lack of intention behind an action.

Usage Notes

This idiom is typically used in informal contexts, often to describe a situation where someone inadvertently engages in an action. Common collocations include phrases about time passing or habits forming. Be careful with the tones: mispronouncing 觉 (jue) can change the meaning.

HSK Study Tips

不知不觉 is not specifically listed in the HSK vocabulary, but it connects well with HSK Level 3 vocabulary that deals with everyday activities and experiences. Focus on recognizing it in conversation and understanding its use in expressing unconscious actions.

Common Mistakes

Learners often mistakenly use 不知不觉 with a direct object, such as '我不知不觉学习' (I unconsciously study), which is incorrect. The correct phrasing would be '我不知不觉就学会了' (I unconsciously learned).

AI-enhanced 2026-03-24

Pronunciation of 不知不觉

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Component characters

不bù(negative prefix)
HSK 14 strokes一
View full entry
知zhīto know
HSK 68 strokes矢
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不bù(negative prefix)
HSK 14 strokes一
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觉jiàoa nap
HSK 69 strokes见
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How to say unconsciously in Chinese

“unconsciously” in Chinese is不知不觉bùzhībùjué

不知不觉 is an idiomatic expression that means to do something unconsciously or without realizing it. It often conveys the idea that time has passed or events have occurred without one's awareness, commonly used in contexts related to habits or changes that happen gradually.

When to use 不知不觉

This idiom is typically used in informal contexts, often to describe a situation where someone inadvertently engages in an action. Common collocations include phrases about time passing or habits forming. Be careful with the tones: mispronouncing 觉 (jue) can change the meaning.

不知不觉 or something close to it

无意中 (wúyìzhōng, inadvertently) — use 不知不觉 when emphasizing the unconscious passage of time or gradual change, while 无意中 focuses more on the lack of intention behind an action.

What learners get wrong

Learners often mistakenly use 不知不觉 with a direct object, such as '我不知不觉学习' (I unconsciously study), which is incorrect. The correct phrasing would be '我不知不觉就学会了' (I unconsciously learned).

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不
知
不
觉

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Frequently asked questions about 不知不觉

It is generally more appropriate in informal contexts, as it conveys a casual tone.

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