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不必 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
不必búbìneed notHSK 4, unknown, 9 strokes, rank #1180, Medium
不必búbìdoes not have toHSK 4, unknown, 9 strokes, rank #1180, Medium
不必búbìnot necessarilyHSK 4, unknown, 9 strokes, rank #1180, Medium
búbì(bu2bi4)bu bi T4
  1. 1need not
  2. 2does not have to
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March 24, 2026

不必búbì(bu2bi4)

不必 (bù bì) means 'need not' or 'does not have to,' indicating that something is not necessary or required. It is commonly used to reassure someone that they do not need to perform an action or meet an expectation, often used in both spoken and written contexts.

Strokes9Frequency#1180DifficultyMedium
Cultural Note

In Chinese culture, the concept of obligation can be strong, so saying 不必 can often be a way to show consideration for others, alleviating pressure. It reflects the value placed on communal harmony and the desire to minimize stress.

Memory Tip

Imagine a person standing at a fork in the road, holding a sign that says 'Not Necessary.' This represents 不 (bù) meaning 'no' and 必 (bì) meaning 'must.' Together, they convey the idea of not having to take a certain path.

Meanings of 不必

búbì(bu2bi4)
1need not
2does not have to
Exercise 1 of 2

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About 不必

不必Simplified
9Strokes
—Radical
副词fùcíadverb (adv.)Part of Speech
#—Frequency Rank
HSK 3.0L4ElementaryTOCFLL3YCTL4HSKKL2CEFRA2

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Podcast: 不必

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AI Study Notes for 不必

Quick Contrast

不需要 (bù xū yào) — use 不必 when emphasizing a lack of necessity rather than simply stating that something is not needed.

Usage Notes

Be cautious with the tone; 不必 (bù bì) has a falling tone on both syllables, which is crucial for correct pronunciation. It is often used in informal contexts, so in formal situations, other phrases might be more appropriate. Common collocations include 不必担心 (bù bì dān xīn) meaning 'need not worry.'

HSK Study Tips

While 不必 is not an official HSK entry, it is useful for HSK 3 or 4 level learners as they encounter phrases indicating necessity and obligation. Students should focus on understanding how to express necessity and the nuances of obligation versus choice.

Common Mistakes

Learners often confuse 不必 with 必须 (bì xū), which means 'must' or 'have to.' For example, saying '你不必去' (nǐ bù bì qù) when you mean 'you must go' is incorrect; the correct phrase would be '你必须去' (nǐ bì xū qù).

AI-enhanced 2026-03-24

Pronunciation of 不必

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Component Characters

不bù(negative prefix)
HSK 14 strokes一
View full entry
必bìcertainly
HSK 55 strokes心
View full entry

How to say need not in Chinese

“need not” in Chinese is不必búbì

不必 (bù bì) means 'need not' or 'does not have to,' indicating that something is not necessary or required. It is commonly used to reassure someone that they do not need to perform an action or meet an expectation, often used in both spoken and written contexts.

When to use 不必

Be cautious with the tone; 不必 (bù bì) has a falling tone on both syllables, which is crucial for correct pronunciation. It is often used in informal contexts, so in formal situations, other phrases might be more appropriate. Common collocations include 不必担心 (bù bì dān xīn) meaning 'need not worry.'

不必 or something close to it

不需要 (bù xū yào) — use 不必 when emphasizing a lack of necessity rather than simply stating that something is not needed.

What learners get wrong

Learners often confuse 不必 with 必须 (bì xū), which means 'must' or 'have to.' For example, saying '你不必去' (nǐ bù bì qù) when you mean 'you must go' is incorrect; the correct phrase would be '你必须去' (nǐ bì xū qù).

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不
必

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Frequently Asked Questions about 不必

Use 不必 to indicate that something is not necessary, while 不能 means 'cannot' or 'not allowed.'

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