Neither... Nor... ({不...不...|bù...bù...})
Grammar Rule in 30 Seconds
Use {不...不...|bù...bù...} to describe two negative states or actions happening simultaneously.
- Place {不|bù} before the first verb or adjective: {他不|tā bù}...
- Place the second {不|bù} before the second verb or adjective: {不|bù}...
- The structure emphasizes that both conditions are true: {他不吃不喝|tā bù chī bù hē} (He neither eats nor drinks).
Overview
In Chinese, one of the most elegant ways to describe something as being "just right" is to define it by what it is not. This is achieved through the 不...不... structure. Instead of searching for a single word for "medium" or "average," this pattern negates two opposite extremes to pinpoint the ideal middle ground.
It's the linguistic equivalent of finding the perfect temperature by saying it's 不冷不热 (neither cold nor hot), or the perfect size by calling it 不大不小 (neither big nor small).
This structure is fundamental to the Chinese way of expressing moderation and balance. While its English translation, "neither... nor...", can sound formal or even poetic, the {不...不...} pattern is incredibly common in everyday Chinese speech.
It is used for everything from describing food and clothing to expressing nuanced opinions and employing fixed idiomatic phrases. Mastering this pattern is a key step in moving from basic, direct descriptions to a more natural and sophisticated-sounding mode of expression that mirrors native-speaker intuition.
At its core, this pattern relies on the principle of parallelism, creating a rhythmic and symmetrical phrase that is both efficient and aesthetically pleasing. For a beginner, it is one of the first introductions to the balanced, four-character structures that are so prevalent in the Chinese language.
How This Grammar Works
{不...不...} pattern is to create an affirmation through double negation. By stating that a subject does not possess either of two opposing qualities, you implicitly place it in the acceptable, moderate space between them. This only works when the two qualities are semantic antonyms that exist on a single, gradable spectrum.hot and cold exist on the spectrum of temperature, while big and small exist on the spectrum of size.高 (tall) and 矮 (short). They are valid opposites on the spectrum of height. Therefore, you can form the phrase 不高不矮 to mean "of average height." However, you cannot combine adjectives from different spectrums.不贵不红 (neither expensive nor red*) is grammatically nonsensical within this pattern because price and color are unrelated attributes. The listener cannot infer a "middle ground" from these two qualities.不大不小, they aren't just making a neutral statement about its medium size; they are communicating that the size is just right for the wearer. This positive connotation of suitability is a crucial part of its meaning.这个价格不高不低 means "The price is reasonable," not just "The price is mid-range."不. By default, 不 is the 4th tone. However, when it is immediately followed by another 4th-tone syllable, 不 changes to the 2nd tone, {bú}. This occurs frequently in this pattern.- In
不大不小,大is 4th tone, so the preceding不becomes{bú}.小is 3rd tone, so the不before it remains 4th tone. - In
不快不慢, both快and慢are 4th tone, so both instances of不change to the 2nd tone,{bú}.
Word Order Rules
不 + Adjective A + 不 + Adjective B{不...不...} phrase acts as the predicate, similar to a single adjective.这双鞋 (This pair of shoes) | 他开车 (He drives) |不大不小 (is not big, not small) | 不快不慢 (is not fast, not slow) |这双鞋不大不小。 | 他开车不快不慢。 |不大不小, never *不小不大. Similarly, native speakers say 不高不矮 (not tall, not short), not the reverse.Formation Pattern
distance, this would be 远 (far) and 近 (near).
不 Negators: Place a 不 directly before each adjective in its conventional order.
不 if it precedes a 4th-tone syllable.
难 (difficult) and 容易 (easy). Combined, this becomes 不难不容易.
{不...不...} Phrase | Pinyin Pronunciation |
大 / 小 (big/small) | 不大不小 | bú dà bù xiǎo |
冷 / 热 (cold/hot) | 不冷不热 | bù lěng bù rè |
高 / 矮 (tall/short) | 不高不矮 | bù gāo bù ǎi |
多 / 少 (many/few) | 不多不少 | bù duō bù shǎo |
快 / 慢 (fast/slow) | 不快不慢 | bú kuài bú màn |
贵 / 便宜 (expensive/cheap) | 不贵不便宜 | bú guì bù piányi |
远 / 近 (far/near) | 不远不近 | bù yuǎn bú jìn |
When To Use It
- When trying on a jacket:
这件不大不小，正好。(This one is the perfect size, just right.) - When tasting soup:
汤的咸淡正好，不咸不淡。(The saltiness of the soup is perfect, neither salty nor bland.)
- About an exam:
这次考试不难不简单。(This exam was neither difficult nor simple.) Note:简单(jiǎndān) is often used as the opposite of难(nán) here. - Describing a person's attitude:
他对人的态度不冷不热。(His attitude toward people is lukewarm/indifferent.) In this context, the meaning shifts from "perfectly comfortable" to "unenthusiastic."
{不...不...} structure is a productive pattern for four-character idioms (成语|chéngyǔ), which can involve verbs as well as adjectives. These carry specific, often figurative meanings that must be memorized.不见不散(Verb: see/disperse): Literally "no see, no disperse." It's a common phrase used when making plans, meaning, "I'll wait for you until we meet; don't leave!"不上不下(Verb: go up/go down): Literally "not up, not down." It describes being stuck in an awkward or difficult position, either physically or metaphorically in a career or project.不三不四(Noun: three/four): Literally "not three, not four." A derogatory term for a person or behavior that is shady, improper, or disreputable.别跟那些不三不四的人来往。(Don't associate with those sketchy people.)
Common Mistakes
- Incorrect:
那家餐厅的菜不贵不好吃。|Nà jiā cāntīng de cài bú guì bù hǎochī.(That restaurant's food is neither expensive nor delicious.) - Why it's wrong: Price (
贵|guì) and taste (好吃|hǎochī) are separate qualities. This sentence is confusing. To express this idea correctly, you must separate the clauses:那家餐厅的菜不贵，但是不好吃。(That restaurant's food isn't expensive, but it's not delicious.)
不不 before a 4th-tone syllable sounds unnatural.- Incorrect Pronunciation: Pronouncing
不大不小asbù dà bù xiǎo. - Correction: Remember the rule:
{不 (bù)}+ 4th tone syllable →{bú}+ 4th tone syllable. You must internalize this change for it to become automatic. Practice saying{bú dà},{bú kuài}, and{bú jìn}until it feels natural.
很 or 太{不...不...} construction is a self-contained predicate. It cannot be modified internally.- Incorrect:
这件衣服不很大不很小。|Zhè jiàn yīfu bù hěn dà bù hěn xiǎo. - Why it's wrong: The structure itself defines the degree ("moderately"). Adding another degree adverb is redundant and ungrammatical. The form is always a clean
不+ Adjective.
- Incorrect Context: You try on a shirt that is slightly too big, but not enormous. You say,
“这件衣服不大不小。” - Why it's wrong: This statement is misleading, as it communicates that the shirt is a perfect fit. If it's slightly too big, you should use a different structure, such as
有点儿大(a little bit big). Use{不...不...}only when you genuinely mean something is fitting, appropriate, or perfectly in the middle.
Contrast With Similar Patterns
{不...不...}, it is essential to contrast it with other common descriptive patterns.{不...不...} | Just Right / Moderate: Implies a balanced, often ideal state. Connotation is typically neutral to positive. | 这碗汤不冷不热。 (This soup is the perfect temperature.) |很 + Adj | Is / Very: Functions as a neutral link ('is') or, with stress, means 'very'. It confirms a quality, rather than defining a middle ground. | 这碗汤很热。 (This soup is hot.) |太 + Adj + 了 | Too...: Expresses excess. The connotation is almost always negative, implying the quality has passed an acceptable limit. | 这碗汤太热了！ (This soup is too hot!) |有(一)点儿 + Adj | A Little Bit...: Expresses a slight degree. The connotation is usually one of minor dissatisfaction or complaint. | 这碗汤有点儿热。 (This soup is a little bit hot [for my liking].) |不大不小: Perfect fit. (Positive)有点儿大: A little too big. (Slightly negative)太大了: Way too big. (Definitely negative)很大: Is big. (Neutral statement of fact)
{不...不...} when you mean {有点儿...} is a common A1-level error that can cause miscommunication.Real Conversations
Here is how you might encounter the {不...不...} structure in natural, modern conversations.
Scenario 1
- Barista: 您好，您的拿铁需要加糖吗？ (Hello, does your latte need sugar?)
- Customer: 好的，要半糖，我不喜欢太甜的，不甜不淡正好。 (Yes, please do half-sugar. I don't like it too sweet; not sweet but not bland is just right.)
Scenario 2
- Speaker A: 这个项目的时间线怎么样？紧张吗？ (How's the timeline for this project? Is it tight?)
- Speaker B: 还可以，老板给的时间不多不少，只要我们按计划做，就没问题。 (It's alright. The time the boss gave us is just the right amount. As long as we stick to the plan, there's no problem.)
Scenario 3
- Friend A: 晚上七点半，电影院门口见！ (7:30 PM, meet at the cinema entrance!)
- Friend B: 收到！不见不散！ (Got it! I'll be there waiting!)
Scenario 4
- Speaker A: 你觉得新来的总监怎么样？ (What do you think of the new director?)
- Speaker B: 感觉是个厉害角色。说话做事不卑不亢，很有分寸。 (Seems like a formidable person. The way they speak and act is neither servile nor arrogant, very measured and appropriate.)
Quick FAQ
不脏不净 (neither dirty nor clean), it is far less common than simply saying 很干净 (is clean) or 不太脏 (not too dirty).{不大不小} vs. *{不小不大}?不大不小, 不高不矮, and 不胖不瘦.“这件衣服不大”?这件衣服不大 is a simple negation meaning "This piece of clothing is not big." It makes no claim about it being the right size; it could be small or even tiny. The special meaning of "just right" only emerges when you complete the symmetrical 不...不... pattern.不大不小 and 不冷不热 are extremely common and belong to informal, spoken Chinese (口语|kǒuyǔ). In contrast, idiomatic expressions like 不卑不亢 (neither humble nor arrogant) are highly formal and literary (书面语|shūmiànyǔ), typically appearing in writing or formal speeches.Formation of {不...不...|bù...bù...}
| Subject | Negative 1 | Verb/Adj 1 | Negative 2 | Verb/Adj 2 |
|---|---|---|---|---|
|
他
|
不
|
吃
|
不
|
喝
|
|
这
|
不
|
长
|
不
|
短
|
|
他
|
不
|
高
|
不
|
矮
|
|
这
|
不
|
冷
|
不
|
热
|
|
他
|
不
|
哭
|
不
|
闹
|
|
这
|
不
|
贵
|
不
|
便宜
|
Meanings
This structure is used to indicate that two negative states or actions are occurring at the same time, often emphasizing a persistent state.
Simultaneous Negation
Describing two negative actions or traits happening together.
“{他不哭不闹|tā bù kū bù nào} (He is neither crying nor making a fuss).”
“{这件衣服不长不短|zhè jiàn yīfu bù cháng bù duǎn} (This shirt is neither long nor short).”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
Subject + 不 + Adj + 不 + Adj
|
{他不高不矮|tā bù gāo bù ǎi}
|
|
Action
|
Subject + 不 + Verb + 不 + Verb
|
{他不吃不喝|tā bù chī bù hē}
|
|
Past Context
|
Time + Subject + 不 + Adj + 不 + Adj
|
{昨天他不冷不热|zuótiān tā bù lěng bù rè}
|
|
Negative (Extended)
|
Subject + 既不 + Adj + 也不 + Adj
|
{他既不胖也不瘦|tā jì bù pàng yě bù shòu}
|
Formality Spectrum
{这水既不冷也不热|zhè shuǐ jì bù lěng yě bù rè} (Describing temperature)
{这水不冷不热|zhè shuǐ bù lěng bù rè} (Describing temperature)
{水不冷不热|shuǐ bù lěng bù rè} (Describing temperature)
{水不冷不热的|shuǐ bù lěng bù rè de} (Describing temperature)
The Middle Ground
Physical
- 高/矮 tall/short
Temperature
- 冷/热 cold/hot
Behavior
- 哭/闹 cry/fuss
Examples by Level
{他不吃不喝|tā bù chī bù hē}
He is neither eating nor drinking.
{这不长不短|zhè bù cháng bù duǎn}
This is neither long nor short.
{他不高不矮|tā bù gāo bù ǎi}
He is neither tall nor short.
{这不冷不热|zhè bù lěng bù rè}
This is neither cold nor hot.
{他今天不哭不闹|tā jīntiān bù kū bù nào}
He is neither crying nor making a fuss today.
{这件衣服不贵不便宜|zhè jiàn yīfu bù guì bù piányi}
This shirt is neither expensive nor cheap.
{他不胖不瘦|tā bù pàng bù shòu}
He is neither fat nor thin.
{这路不远不近|zhè lù bù yuǎn bù jìn}
The road is neither far nor near.
{他工作不忙不闲|tā gōngzuò bù máng bù xián}
His work is neither busy nor idle.
{这房子不新不旧|zhè fángzi bù xīn bù jiù}
This house is neither new nor old.
{他说话不快不慢|tā shuōhuà bù kuài bù màn}
He speaks neither fast nor slow.
{这颜色不深不浅|zhè yánsè bù shēn bù qiǎn}
This color is neither dark nor light.
{他的态度不冷不热|tā de tàidù bù lěng bù rè}
His attitude is neither cold nor warm (indifferent).
{这计划不完美也不糟糕|zhè jìhuà bù wánměi yě bù zāogāo}
This plan is neither perfect nor terrible.
{他做事不急不躁|tā zuòshì bù jí bù zào}
He acts neither rashly nor impatiently.
{这结果不坏也不好|zhè jiéguǒ bù huài yě bù hǎo}
The result is neither bad nor good.
{他为人不卑不亢|tā wéirén bù bēi bù kàng}
He is neither humble nor arrogant (confident).
{这选择不难也不易|zhè xuǎnzé bù nán yě bù yì}
This choice is neither hard nor easy.
{这文章不长也不短|zhè wénzhāng bù cháng yě bù duǎn}
This article is neither long nor short.
{他生活不奢不俭|tā shēnghuó bù shē bù jiǎn}
His lifestyle is neither extravagant nor frugal.
{这政策不偏不倚|zhè zhèngcè bù piān bù yǐ}
This policy is neither biased nor partial (impartial).
{他言语不温不火|tā yányǔ bù wēn bù huǒ}
His words are neither too warm nor too cold (measured).
{这处境不进不退|zhè chǔjìng bù jìn bù tuì}
The situation is neither advancing nor retreating (stagnant).
{这审美不俗不雅|zhè shěnměi bù sú bù yǎ}
The aesthetic is neither vulgar nor refined (balanced).
Easily Confused
Both express 'neither/nor'.
Both are negative.
Very similar to {不...不...|bù...bù...}.
Common Mistakes
{他不吃和不喝|tā bù chī hé bù hē}
{他不吃不喝|tā bù chī bù hē}
{他不吃没喝|tā bù chī méi hē}
{他不吃不喝|tā bù chī bù hē}
{他是不吃不喝|tā shì bù chī bù hē}
{他不吃不喝|tā bù chī bù hē}
{他不吃不喝了|tā bù chī bù hē le}
{他不吃不喝|tā bù chī bù hē}
{这衣服不长也不短|zhè yīfu bù cháng yě bù duǎn}
{这衣服不长不短|zhè yīfu bù cháng bù duǎn}
{他不高也不矮|tā bù gāo yě bù ǎi}
{他不高不矮|tā bù gāo bù ǎi}
{他不冷也不热|tā bù lěng yě bù rè}
{他不冷不热|tā bù lěng bù rè}
{他既不吃不喝|tā jì bù chī bù hē}
{他既不吃也不喝|tā jì bù chī yě bù hē}
{他不吃也不喝了|tā bù chī yě bù hē le}
{他不吃不喝|tā bù chī bù hē}
{他不吃不喝的|tā bù chī bù hē de}
{他不吃不喝|tā bù chī bù hē}
{他为人既不卑也不亢|tā wéirén jì bù bēi yě bù kàng}
{他为人不卑不亢|tā wéirén bù bēi bù kàng}
{这政策既不偏也不倚|zhè zhèngcè jì bù piān yě bù yǐ}
{这政策不偏不倚|zhè zhèngcè bù piān bù yǐ}
{他言语既不温也不火|tā yányǔ jì bù wēn yě bù huǒ}
{他言语不温不火|tā yányǔ bù wēn bù huǒ}
Sentence Patterns
这件衣服___长___短。
他今天___吃___喝。
这杯水___冷___热。
他性格___急___躁。
Real World Usage
{这件衣服不长不短|zhè jiàn yīfu bù cháng bù duǎn}
{这菜不咸不淡|zhè cài bù xián bù dàn}
{今天天气不冷不热|jīntiān tiānqì bù lěng bù rè}
{我做事不急不躁|wǒ zuòshì bù jí bù zào}
{他不回也不看|tā bù huí yě bù kàn}
{这路不远不近|zhè lù bù yuǎn bù jìn}
Keep it simple
Don't use {没|méi}
Use for balance
Idiomatic usage
Smart Tips
Use this structure to sound more natural.
Use it to describe taste balance.
Use it to describe your workload.
Use it for a balanced view.
Pronunciation
Tone of {不|bù}
When {不|bù} is followed by a 4th tone, it changes to a 2nd tone. However, in this structure, it usually stays 4th tone.
Balanced
不 ↗ 不 ↘
Emphasizes the middle ground.
Memorize It
Mnemonic
Think of a seesaw that is perfectly balanced—not going up, not going down.
Visual Association
Imagine a person standing perfectly still, not moving left, not moving right.
Rhyme
Not high, not low, just right to go.
Story
Xiao Wang went to the market. He looked at a shirt. It wasn't too long, it wasn't too short. He bought it because it was 'not long, not short' ({不长不短|bù cháng bù duǎn}).
Word Web
Challenge
Describe three things in your room using the {不...不...|bù...bù...} pattern in 5 minutes.
Cultural Notes
Commonly used in daily life to describe everything from food to personality.
Similar usage, often used in casual conversation.
The structure is understood, though Cantonese has its own ways of expressing this.
The structure evolved from early Chinese parallelisms where negative markers were repeated for emphasis.
Conversation Starters
你觉得这件衣服怎么样？
他今天心情好吗？
这个工作忙吗？
你觉得他的性格怎么样？
Journal Prompts
Common Mistakes
Test Yourself
他___高___矮。
Find and fix the mistake:
他不吃和不喝。
Which is correct?
Arrange the words in the correct order:
All words placed
Click words above to build the sentence
He is neither cold nor hot.
Answer starts with: 他不冷...
Match each item on the left with its pair on the right:
Use {不...不...|bù...bù...} with {胖|pàng} and {瘦|shòu}.
Choose the formal one.
Score: /8
Practice Exercises
8 exercises他___高___矮。
Find and fix the mistake:
他不吃和不喝。
Which is correct?
不/他/不/吃/喝
He is neither cold nor hot.
Match: 高, 冷, 长
Use {不...不...|bù...bù...} with {胖|pàng} and {瘦|shòu}.
Choose the formal one.
Score: /8
Practice Bank
11 exercises我们八点见，___ 见 ___ 散！
Match the pairs:
Make a sentence:
{他跑得没快没慢。|Tā pǎo de méi kuài méi màn.}
How do you say 'Not big not small'?
Complete the pair: {不___不矮} (Neither ___ nor short)
{这双鞋 ___ 大 ___ 小。|Zhè shuāng xié ___ dà ___ xiǎo.}
Arrange words:
{水是不热不冷。|Shuǐ shì bú rè bù lěng.}
If someone is {不三不四}, they are...
{这道菜 ___ 咸 ___ 淡。} (This dish is not salty not bland.)
Score: /11
FAQ (8)
Yes, just add a time marker like {昨天|zuótiān} at the beginning.
No, it works for verbs too, like {不吃不喝|bù chī bù hē}.
The structure is inherently parallel; adding 'and' breaks the rhythm.
It's neutral. For formal, use {既不...也不...|jì bù... yě bù...}.
It's not typically used in questions.
Most, especially those that have clear opposites.
It changes the meaning to a completed action, which doesn't fit this pattern.
Yes, it's standard Mandarin.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
ni... ni...
Spanish requires the verb to be negated before the 'ni'.
ni... ni...
French grammar is more rigid regarding the placement of the negation.
weder... noch...
German structure is more formal than the Chinese {不...不...|bù...bù...}.
〜も〜も（否定）
Chinese repeats the negative particle; Japanese uses particles.
لا... ولا...
Arabic includes an 'and' (wa) which Chinese omits.
不...不...
It is the standard for this type of negation.
Learning Path
Prerequisites
Related Grammar Rules
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Emphasizing Details with 是...的 (shì...de)
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Explaining the 'Why' (之所以...是因为...)
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Explaining 'Why': Emphasizing Reasons (之所以...是因为...)
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Formal Topic-Comment Structures: Guanyu, Zhiyu, and Lun (关于、至于、论)
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