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B1 adjective #1,000 most common 14 min read

唯一

weiyi Top 1,000

Practice it Examples Notes & Tips 唯一 in 30 Seconds

Explanation 唯一 in your Level:

At the A1 level, you can think of 唯一 (wéiyī) as a special way to say 'one.' While you already know '一个' (yī gè) for 'one thing,' 唯一 is used when you want to say 'the ONLY one.' Imagine you have five apples, but only one is red. You can say '这是唯一的红苹果' (This is the only red apple). At this stage, you don't need to worry about complex grammar. Just remember the pattern: 唯一 + 的 + Noun. It helps you point out something special that has no brothers or sisters. For example, '唯一的儿子' (the only son). You might hear it in simple songs or see it in basic stories. It's a great word to make your simple sentences sound a bit more specific. Just remember that it usually comes before the noun and needs that little '的' to connect them. Don't use it to say 'I only like apples' (use '只' for that); use it for 'Apples are the only fruit I like.' It's about naming the 'one and only' thing in a group.

At the A2 level, you are starting to build more descriptive sentences. 唯一 (wéiyī) becomes very useful for expressing limits and preferences. You can use it to describe your '唯一的朋友' (only friend) or '唯一的爱好' (only hobby). You should notice that 唯一 is an adjective, which means it describes a noun. This is different from '只' (zhǐ), which is an adverb that describes an action. For example, '我只买了一本书' (I only bought one book) uses '只' because it describes the action of buying. But '这是我唯一买的书' (This is the only book I bought) uses '唯一' because it describes the book itself. You will also see 唯一 used in simple 'Yes/No' or 'True/False' contexts, like '这是唯一的答案吗？' (Is this the only answer?). Learning this word helps you move beyond just counting things to describing their unique status. It's common in daily life when you are looking for a specific item or explaining why you did something ('这是我唯一的办法' - This is my only way). Practice using it with '是' (shì) to identify unique things in your environment.

As a B1 learner, you should be comfortable using 唯一 (wéiyī) in a variety of contexts, including emotional, logical, and descriptive. You'll find it frequently in pop songs (like Wang Leehom's '唯一') and in more complex reading materials. At this level, you should understand that 唯一 is an 'absolute' adjective, meaning it doesn't usually take modifiers like '很' (very). You are either the only one, or you aren't! You can use it to form more sophisticated arguments, such as '金钱不是唯一的目的' (Money is not the only goal). This shows you can look at a situation from multiple angles. You should also be careful with the distinction between 唯一 and '只有' (zhǐyǒu). Remember that '只有' is often used for conditions ('Only if...'), while 唯一 is for identifying a single entity. For example, '唯一的问题是时间' (The only problem is time). You can also use it to describe unique opportunities or sole survivors in stories. It adds a level of precision to your Chinese that helps you express exclusivity clearly. Try incorporating it into your writing when discussing your 'only' reasons for choosing a path or your 'only' regret.

At the B2 level, you should use 唯一 (wéiyī) to add nuance and emphasis to your speech and writing. You can use it in formal contexts, such as business reports or academic essays, to define '唯一的授权' (sole authorization) or '唯一的解释' (the only explanation). You should also be able to distinguish it from more literary terms like '独一无二' (one of a kind) or '唯独' (only/alone as an exception). For instance, you might use '唯一' to state a fact about quantity, while using '独一无二' to praise someone's unique talent. You'll also encounter 唯一 in abstract discussions about philosophy or social issues, such as '人类唯一的出路' (the only way out for humanity). At this stage, you should also be aware of its usage in the '是...的' structure for emphasis: '他是唯一能解决这个问题的人' (He is the only person who can solve this problem). Your ability to use 唯一 to narrow down possibilities and focus the listener's attention on a single, crucial point is a sign of your growing fluency. You can also use it to contrast factors: '虽然这不是唯一的原因，但它是最重要的' (Although this isn't the only reason, it is the most important one).

For C1 learners, 唯一 (wéiyī) is a tool for precision and rhetorical effect. You should be able to use it in complex sentence structures and understand its role in formal logic and legal language. For example, in a legal context, '唯一继承人' (sole heir) has specific implications. In a scientific or mathematical context, you might discuss the '唯一性' (uniqueness) of a solution or a theorem. You should also be sensitive to the rhythmic and emotional impact of 唯一 in literature. It can be used to create a sense of existential isolation or profound importance. You can analyze how authors use 唯一 to elevate a mundane object to something of singular significance. Furthermore, you should be able to use 唯一 in sophisticated debates to dismiss or highlight specific variables: '我们不能把这归结为唯一的因素' (We cannot attribute this to a single factor). Your usage should be flawless, avoiding any confusion with adverbs like '仅仅' or '只'. You might also explore how 唯一 interacts with other modal particles and formal connectors to create a polished, professional tone in your writing. At this level, you are not just using the word to describe quantity, but to shape the logical structure of your entire argument.

At the C2 level, you possess a native-like grasp of 唯一 (wéiyī) and can use it with absolute precision across all registers. You understand the subtle differences between 唯一 and its classical predecessors, and you can use it rhetorically to emphasize the absolute nature of a claim. You might use it in high-level political discourse, philosophical treatises, or avant-garde literature to explore themes of singularity and essence. For example, discussing '存在的唯一性' (the uniqueness of existence) or '真理的唯一性' (the singularity of truth). You are also aware of how 唯一 can be used ironically or for hyperbole in sophisticated social commentary. Your understanding extends to the word's placement in highly complex, multi-clause sentences where it serves as a critical anchor for the sentence's meaning. You can effortlessly switch between the objective, count-based usage of 唯一 and its more subjective, value-laden applications. Whether you are drafting a formal policy document or writing a poetic essay, you use 唯一 to define boundaries and establish a clear, unambiguous focus. You are also capable of critiquing the usage of 唯一 in others' work, identifying where it might be used redundantly or where a more nuanced term like '独一无二' or '绝无仅有' might be more appropriate.

Practice it Examples Notes & Tips

唯一 in 30 Seconds

唯一 (wéiyī) is an adjective meaning 'the only one' or 'sole.'
It is used to describe a noun that is singular and exclusive in its context.
Commonly follows the pattern '唯一 + 的 + Noun' (e.g., 唯一的机会).
It differs from the adverb '只' (only) which modifies actions, not nouns.

The Chinese word 唯一 (wéiyī) is a powerful adjective that translates to 'the only one,' 'unique,' or 'sole.' At its core, it signifies the absence of any other alternatives or counterparts. Unlike the English word 'only,' which can function as an adverb (e.g., 'I only have five dollars'), 唯一 is primarily used as an adjective to describe a noun that is singular in its existence or importance within a specific context. It is composed of two characters: 唯 (wéi), meaning 'only' or 'alone,' and 一 (yī), meaning 'one.' Together, they create a term that emphasizes absolute exclusivity.

Exclusivity: The primary function of 唯一 is to isolate a single subject from all other possibilities. If you say someone is your '唯一' friend, you are stating that no other person holds that status.
Uniqueness: While '独特' (dútè) means unique in style, 唯一 means unique in number. It indicates there is literally no second instance of the thing being discussed.

你是我的唯一。 (Nǐ shì wǒ de wéiyī.) - You are my only one.

In daily conversation, 唯一 is often used to express devotion, highlight a specific limitation, or identify a single solution to a complex problem. For example, in a romantic context, it is the ultimate expression of commitment. In a technical or logical context, it identifies the 'sole' survivor or the 'single' correct answer. It carries a weight of finality and importance that other words like '只' (zhǐ) lack. While '只' is a functional adverb used for counting or limiting actions, 唯一 is a descriptive label that defines the nature of the object itself.

Historically, the character 唯 was used in classical Chinese to indicate a respectful 'yes' or to signify 'only' in a more formal, philosophical sense. When paired with 一, it solidified into the modern adjective we use today. You will find it in literature to describe a hero's sole motivation, in news reports to describe a unique archaeological find, and in everyday speech to emphasize that there are no other options left on the table. Its frequency in Chinese pop songs is particularly high, as it perfectly captures the 'one and only' sentiment of romantic ballads.

这是我唯一的要求。 (Zhè shì wǒ wéiyī de yāoqiú.) - This is my only request.

Contextual Nuance: In formal writing, 唯一 can be used to describe the 'sole' legitimate heir or the 'unique' characteristics of a species. It bridges the gap between emotional expression and logical precision.

Furthermore, 唯一 is often used in negative constructions to show that something is *not* the only factor. For instance, '金钱不是唯一的标准' (Money is not the only standard). This usage is common in debates and essays where the speaker wants to acknowledge multiple facets of an issue while highlighting that one specific facet shouldn't be given absolute priority. Understanding 唯一 is essential for B1 learners because it allows for more precise descriptions of quantity and importance, moving beyond the simple 'one' (一个) to the more nuanced 'the only one.'

他是唯一知道真相的人。 (Tā shì wéiyī zhīdào zhēnxiàng de rén.) - He is the only person who knows the truth.

Using 唯一 (wéiyī) correctly involves understanding its grammatical placement and its relationship with the particle 的 (de). As an adjective, its most common position is before a noun, serving as an attributive modifier. The structure is typically 唯一 + 的 + Noun. This structure is used to single out a specific entity from a group. For example, in the phrase '唯一的机会' (the only opportunity), 唯一 tells us that among all possible opportunities, only this one exists.

Attributive Usage: The most frequent pattern. Example: '这是唯一的办法' (This is the only way). Here, '唯一' modifies '办法'.
Predicative Usage: Using 唯一 as the main predicate, usually following '是'. Example: '他的目的很唯一' (His goal is very singular/focused). This is less common but used to emphasize focus.

这是我们唯一的希望。 (Zhè shì wǒmen wéiyī de xīwàng.) - This is our only hope.

Another important aspect is the use of 唯一 in the '是...的' construction. When you want to emphasize that someone is the *only* person to do something, you use the pattern Subject + 是 + 唯一 + Verb/Noun + 的. For instance, '他是唯一参加会议的人' (He is the only person who attended the meeting). In this sentence, '唯一' works with '的人' to create a specific identity for the subject. It is important not to confuse this with '只' (zhǐ), which is an adverb. You cannot say '他唯一参加会议' to mean 'He only attended the meeting'; instead, you would say '他只参加了会议.'

In more complex sentences, 唯一 can be used to contrast multiple factors. A common sentence pattern is ...不是唯一的...，还有... (is not the only..., there are also...). For example, '努力不是唯一的成功因素，运气也很重要' (Hard work is not the only factor for success; luck is also important). This allows speakers to acknowledge the importance of one thing while maintaining a balanced perspective. This is a hallmark of B1 and B2 level proficiency, where learners start to express more nuanced opinions.

你不是我唯一的选择。 (Nǐ bùshì wǒ wéiyī de xuǎnzé.) - You are not my only choice.

Placement with Quantifiers: When used with a specific number, 唯一 usually precedes the number and measure word. Example: '唯一的两本书' (The only two books). This emphasizes that in the entire set, only these two exist.

When writing, ensure that the noun following '唯一' is appropriate. It is often used with abstract nouns like '理由' (lǐyóu - reason), '出路' (chūlù - way out), '解释' (jiěshì - explanation), and '目标' (mùbiāo - goal). Using 唯一 with these words adds a sense of logical necessity. If there is only one reason for an action, that reason becomes much more significant. In professional emails, you might say '这是我唯一能提供的帮助' (This is the only help I can provide), which sets a clear boundary while remaining polite.

这是解决问题的唯一途径。 (Zhè shì jiějué wèntí de wéiyī tújìng.) - This is the only way to solve the problem.

The word 唯一 (wéiyī) is ubiquitous in Chinese culture, appearing in everything from high-stakes legal proceedings to the most sentimental pop songs. If you listen to Mandopop, you will encounter 唯一 constantly. One of the most famous examples is Wang Leehom's hit song titled '唯一,' where the chorus repeats the word to emphasize that the person he loves is his 'one and only.' In this context, the word carries a heavy emotional weight, signifying a love that is exclusive and irreplaceable. It is the go-to word for romantic declarations, often appearing in wedding vows and love letters.

In Pop Culture: Songs like '唯一的爱' (The Only Love) or movie titles like '唯一的幸存者' (The Sole Survivor) use the word to create drama and focus.
In News and Media: News anchors use 唯一 to report on rare events, such as '这是该地区唯一的医院' (This is the only hospital in the region) or '他是唯一的候选人' (He is the sole candidate).

你是我生命中的唯一。 (Nǐ shì wǒ shēngmìng zhòng de wéiyī.) - You are the only one in my life.

In a professional or academic setting, 唯一 is used to denote precision. In a scientific paper, a researcher might describe a '唯一的结果' (unique result) to show that their experiment yielded a specific, non-reproducible outcome under certain conditions. In business, a company might claim to be the '唯一的授权代理商' (sole authorized agent) for a product. Here, the word is not about emotion but about legal and commercial exclusivity. If you are reading a contract or a formal announcement, 唯一 is a 'red flag' word that tells you there are no other options or partners involved.

You will also hear 唯一 in the context of family planning and social structures. For many decades, the '唯一的孩子' (only child) was a central figure in Chinese society due to the One-Child Policy. Although the policy has changed, the term '独生子女' (dúshēng zǐnǚ) is more common for 'only child,' but 唯一 is still used to emphasize the singularity of a child's role in a family's future. In daily life, if you are at a restaurant and they have run out of everything except one dish, the waiter might say, '这是我们唯一剩下的菜了' (This is the only dish we have left).

他是这个家庭唯一的经济来源。 (Tā shì zhège jiātíng wéiyī de jīngjì láiyuán.) - He is the family's sole source of income.

In Literature: Writers use 唯一 to create a sense of isolation or destiny. A character might be the '唯一的继承人' (sole heir) to a mysterious legacy.

Finally, in the world of sports and competition, 唯一 is used to describe the champion or the only person to achieve a certain feat. '他是唯一打破纪录的运动员' (He is the only athlete to break the record). This usage highlights excellence and separation from the crowd. Whether you are listening to a motivational speech, a romantic song, or a news broadcast, 唯一 is the word that draws a circle around one thing and says, 'This, and nothing else.'

这是我唯一能想到的解释。 (Zhè shì wǒ wéiyī néng xiǎngdào de jiěshì.) - This is the only explanation I can think of.

One of the most frequent mistakes English speakers make with 唯一 (wéiyī) is treating it like the English adverb 'only.' In English, 'only' can modify verbs, adjectives, or nouns. For example, you can say 'I only ate an apple.' However, in Chinese, 唯一 is an adjective. You cannot say '我唯一吃了一个苹果' (Wǒ wéiyī chīle yīgè píngguǒ). Instead, you must use the adverb 只 (zhǐ): '我只吃了一个苹果.' 唯一 is used when you want to say 'The only thing I ate was an apple' (我唯一吃的东西是一个苹果).

Mistaking Adjective for Adverb: Incorrect: 他唯一去了学校。 (He only went to school.) Correct: 他只去了学校。 OR 他是唯一去学校的人。
Omitting the Particle '的': Incorrect: 唯一理由是... (The only reason is...). Correct: 唯一的理由是... (The particle '的' is almost always necessary when 唯一 modifies a noun).

错误：他唯一喜欢喝咖啡。 (Incorrect: He only likes drinking coffee.)
正确：他只喜欢喝咖啡。 (Correct: He only likes drinking coffee.)

Another common error is confusing 唯一 with 独一无二 (dúyīwú'èr). While both relate to being 'unique,' 唯一 simply means 'the only one' in a count-based sense. 独一无二 is an idiom (chengyu) that means 'one of a kind' or 'unparalleled' in quality or style. You would use 唯一 to say 'This is the only key to the door,' but you would use 独一无二 to say 'Her singing style is unique.' Using the idiom for a simple count or using 唯一 for artistic uniqueness can sound slightly off-target.

Learners also sometimes struggle with the placement of 唯一 in sentences involving 'all' or 'every.' For example, trying to say 'The only thing everyone knows' might lead to '唯一大家知道的事情.' While understandable, a more natural structure would be '大家唯一知道的事情.' The subject or the scope (everyone) usually comes before the 'unique' descriptor. This helps set the context before narrowing it down to the single item.

错误：这是我唯一买的书。 (Incorrect: This is the only book I bought - missing '的')
正确：这是我唯一买的的一本书。 (Correct: This is the only book I bought.)

Redundancy: Avoid saying '唯一的一个' (the only one one). While technically used sometimes for emphasis, '唯一' already implies 'one,' so adding '一个' can be redundant unless you are specifically counting items.

Lastly, be careful with the word 只有 (zhǐyǒu). 只有 is a conjunction often used with '才' (cái) to mean 'only if.' For example, '只有努力，才能成功' (Only if you work hard can you succeed). Learners often swap 唯一 into this structure, which is incorrect. 唯一 is an adjective describing a noun; 只有 is a conditional marker. Keeping these categories separate in your mind—adjective (唯一), adverb (只), and conjunction (只有)—will solve 90% of the mistakes associated with this word.

错误：唯一你来，我才去。 (Incorrect: Only if you come will I go.)
正确：只有你来，我才去。 (Correct: Only if you come will I go.)

To truly master 唯一 (wéiyī), it is helpful to compare it with other Chinese words that convey similar meanings of 'oneness' or 'uniqueness.' While 唯一 is the most versatile and common term for 'the only one,' other words like 独一无二 (dúyīwú'èr), 仅仅 (jǐnjǐn), and 单单 (dāndān) offer different shades of meaning and registers.

唯一 vs. 独一无二: '唯一' focuses on quantity (there is only one). '独一无二' is an idiom that focuses on quality (it is so special that there is no second like it). You have a '唯一' passport, but a '独一无二' personality.
唯一 vs. 只有: '唯一' is an adjective modifying a noun. '只有' is a conjunction used to express a necessary condition ('only if'). '他是唯一的医生' (He is the only doctor) vs. '只有他是医生' (Only he is a doctor).

他的才华是独一无二的。 (His talent is one of a kind.)

Another set of alternatives includes 仅仅 (jǐnjǐn) and 单单 (dāndān). These are adverbs, not adjectives. 仅仅 is more formal and means 'merely' or 'only.' It is often used with numbers, like '仅仅五分钟' (merely five minutes). 单单 is more informal and often implies 'specifically' or 'just.' For example, '为什么单单选我？' (Why choose just me specifically?). While 唯一 could be used in a similar sentence ('为什么我是唯一的选择？'), the grammatical structure changes from an adverbial focus to an adjectival focus.

In literary contexts, you might encounter 唯独 (wéidú). This word is an adverb that means 'only' or 'alone,' but it is used to single out one person or thing from a group, often with a sense of exception. For example, '大家都来了，唯独他没来' (Everyone came, only he didn't). Here, 唯独 highlights the exception. 唯一 would not fit here because we aren't describing him as 'the only one' in a general sense, but rather singling him out from a group action.

这仅仅是个开始。 (This is merely the beginning.)

Register Differences: '唯一' is neutral and can be used in any situation. '独一无二' is more poetic and high-level. '仅仅' is formal/written. '只' is the most common spoken adverb.

Finally, consider 孤 (gū) or 独 (dú) in classical or formal contexts. These characters also mean 'alone' or 'only,' but they often carry a connotation of loneliness or isolation. 唯一 is more objective—it simply states the fact of being the only one. Understanding these synonyms allows you to choose the word that best fits the emotional tone and grammatical structure of your sentence. As a B1 learner, focusing on the distinction between 唯一 (adjective) and 只 (adverb) is the most important step.

大家都同意了，唯独他反对。 (Everyone agreed, only he opposed.)

How Formal Is It?

Fun Fact

In ancient Chinese, '唯' was also used as a polite way to say 'yes' when answering a superior, similar to 'sir, yes sir.' This sense of 'single-minded focus' evolved into the modern meaning of 'only.'

Pronunciation Guide

UK /weɪ iː/

US /weɪ iː/

The stress is equal on both syllables, but 'yi' is often held slightly longer in emotional contexts.

Rhymes With

归一 (guīyī) 第一 (dìyī) 统一 (tǒngyī) 合一 (héyī) 划一 (huàyī) 万一 (wànyī) 单一 (dānyī) 专一 (zhuānyī)

Common Errors

Pronouncing 'wei' as 'why'. It should rhyme with 'play'.
Using the wrong tones (should be 2nd tone then 1st tone).
Merging the two sounds into one syllable.
Pronouncing 'yi' like 'eye'. It should be a long 'ee' sound.
Failing to aspirate or clear the 'w' sound.

Difficulty Rating

Reading 3/5

The characters are relatively simple, but the word appears in many contexts.

Writing 4/5

Writing '唯' correctly requires attention to the strokes in the '隹' component.

Speaking 3/5

Easy to pronounce, but learners often use it as an adverb incorrectly.

Listening 2/5

Very distinct sound, easy to pick out in speech.

What to Learn Next

Prerequisites

一只只有个的

Learn Next

独一无二仅仅特殊特别唯一性

Advanced

绝无仅有唯独孤注一掷举世无双

Grammar to Know

Adjective as Attributive

唯一(adj) + 的 + 朋友(n)

Shi...de Construction

他是唯一来的人。

Negation with Bu

这不是唯一的理由。

Adverb vs Adjective

Use '只' for verbs, '唯一' for nouns.

Placement with Numbers

唯一的三个学生。

Examples by Level

这是我唯一的书。

This is my only book.

唯一 + 的 + Noun

他是唯一的老师。

He is the only teacher.

Subject + 是 + 唯一 + 的 + Noun

我有一个唯一的苹果。

I have one only apple.

唯一 modifies the noun '苹果'

这是唯一的路。

This is the only road.

Simple identification

你是我的唯一。

You are my only one.

Used as a noun here

这是唯一的出口。

This is the only exit.

Common noun '出口'

唯一的孩子在玩。

The only child is playing.

Subject position

这是唯一的红颜色。

This is the only red color.

Describing a specific trait

这是解决问题的唯一办法。

This is the only way to solve the problem.

唯一 + 办法 (method)

他是我唯一认识的中国朋友。

He is the only Chinese friend I know.

Relative clause + 唯一

这是我唯一的要求。

This is my only request.

Abstract noun '要求'

你是唯一知道这件事的人。

You are the only person who knows this.

Focusing on a specific person

这是唯一的可能。

This is the only possibility.

Expressing certainty

这是唯一的选择吗？

Is this the only choice?

Question form

他唯一想做的事就是睡觉。

The only thing he wants to do is sleep.

Topic-comment structure

这是唯一的幸存者。

This is the sole survivor.

Noun '幸存者'

钱不是生活中唯一的追求。

Money is not the only pursuit in life.

Negative construction '不是唯一的...'

他是唯一通过考试的学生。

He was the only student to pass the exam.

Emphasizing achievement

这是我们唯一的机会，不能错过。

This is our only chance, we can't miss it.

Expressing urgency

他唯一担心的就是他的家人。

The only thing he is worried about is his family.

Abstract concern

这是我唯一能给你的建议。

This is the only advice I can give you.

Relative clause

唯一的困难是缺乏资金。

The only difficulty is the lack of funds.

Identifying a barrier

你是唯一能改变主意的人。

You are the only one who can change your mind.

Personal agency

这是该地区唯一的图书馆。

This is the only library in the area.

Describing location

努力工作是成功的唯一途径吗？

Is working hard the only path to success?

Rhetorical question

他是这个项目的唯一负责人。

He is the sole person in charge of this project.

Professional context

这是目前唯一的科学解释。

This is the only scientific explanation at present.

Academic context

他唯一感到遗憾的是没有多陪父母。

His only regret is not spending more time with his parents.

Expressing regret

这是我们唯一剩下的资源了。

This is the only resource we have left.

Scarcity

你是唯一一个敢跟我说实话的人。

You are the only one who dares to tell me the truth.

Emphasis on character

唯一的例外是周日，我们不营业。

The only exception is Sunday; we are not open.

Exception handling

这并不是唯一的解决方案。

This is not the only solution.

Acknowledging alternatives

他是这笔巨额遗产的唯一继承人。

He is the sole heir to this massive inheritance.

Legal/Formal context

该理论是解释这一现象的唯一依据。

This theory is the sole basis for explaining this phenomenon.

Scientific precision

在这个荒凉的星球上，他是唯一的生命迹象。

On this desolate planet, he is the only sign of life.

Literary/Dramatic

这种鸟类是该岛屿唯一的特有物种。

This bird species is the island's only endemic species.

Biological context

唯一能让他动摇的是对失败的恐惧。

The only thing that can shake him is the fear of failure.

Psychological depth

这是唯一能证明他清白的证据。

This is the only evidence that can prove his innocence.

High stakes

他唯一不满意的地方是合同的期限。

The only thing he is dissatisfied with is the duration of the contract.

Specific negotiation

唯一的变数是天气情况。

The only variable is the weather conditions.

Technical 'variable'

他试图通过唯一的逻辑漏洞来反驳对方。

He tried to refute the opponent through the only logical loophole.

Sophisticated argumentation

这种艺术风格在当代是唯一的，无可替代。

This artistic style is unique in contemporary times, irreplaceable.

Artistic critique

他是唯一洞察到社会变革先兆的思想家。

He was the only thinker to perceive the precursors of social change.

Intellectual history

唯一制约该技术发展的因素是伦理争议。

The sole factor constraining the development of this technology is ethical controversy.

Complex social issues

他在这场政治风暴中成为了唯一的牺牲品。

He became the sole victim in this political storm.

Metaphorical usage

这是唯一能弥补过去错误的途径。

This is the only way to make up for past mistakes.

Philosophical/Moral

唯一的慰藉是，他死而无憾。

The only consolation is that he died without regrets.

Poetic/Emotional

该政策是缓解目前危机的唯一有效手段。

This policy is the only effective means of alleviating the current crisis.

Political/Administrative

Synonyms

独一仅有独家单一

Antonyms

多种无数普遍

Common Collocations

唯一的机会

唯一的理由

唯一的办法

唯一的希望

唯一的选择

唯一的出口

唯一的继承人

唯一的解释

唯一的幸存者

唯一的要求

Common Phrases

唯一的爱

— The one and only love. Often used in romantic songs.

你是我唯一的爱。

唯一的出路

— The only way out. Used for difficult situations.

学习是改变命运的唯一出路。

唯一的标准

— The sole standard. Used in evaluations.

成绩不是唯一的标准。

唯一的目的

— The sole purpose. Explaining motivation.

我唯一的目的是帮助你。

唯一的弱点

— The only weakness. Identifying a flaw.

这是他唯一的弱点。

唯一的真相

— The only truth. Used in mysteries.

真相只有一个，也是唯一的。

唯一的不同

— The only difference. Comparing two things.

唯一的不同是颜色。

唯一的途径

— The only path/channel. Formal way to say 'way'.

这是成功的唯一途径。

唯一的证据

— The only evidence. Used in legal contexts.

这是证明他有罪的唯一证据。

唯一的例外

— The only exception. Highlighting a special case.

他是唯一的例外。

Often Confused With

唯一 vs 只 (zhǐ)

只 is an adverb (I only have), 唯一 is an adjective (The only one).

唯一 vs 只有 (zhǐyǒu)

只有 is a conjunction for conditions (Only if...), 唯一 is a descriptor.

唯一 vs 仅仅 (jǐnjǐn)

仅仅 is a formal adverb meaning 'merely,' usually for numbers.

Idioms & Expressions

"独一无二"

— The most common idiom related to 唯一, meaning 'unparalleled' or 'one of a kind'.

这件艺术品是独一无二的。

Neutral/Formal

"绝无仅有"

— Extremely rare; something that has never happened before and won't again.

这样的天才在历史上是绝无仅有的。

Formal

"举世无双"

— Matchless in the whole world. Very high praise.

他的剑法举世无双。

Literary

"盖世无双"

— Unrivaled in one's generation. Often used for heroes.

盖世无双的英雄。

Literary

"天下第一"

— Number one under heaven. The very best.

他是天下第一的高手。

Informal/Neutral

"独占鳌头"

— To be the only one at the very top (originally for top scholars).

他在比赛中独占鳌头。

Formal

"孤注一掷"

— To put everything on one single throw (like 'only' hope).

这是他唯一的希望，他决定孤注一掷。

Neutral

"万里挑一"

— One in ten thousand. Extremely rare and excellent.

她是个万里挑一的好姑娘。

Neutral

"数一数二"

— One of the best (not strictly 'only one', but close).

他的成绩在班里是数一数二的。

Neutral

"独树一帜"

— To develop a unique style of one's own.

他的画风独树一帜。

Formal

Easily Confused

唯一 vs 独特 (dútè)

Both mean 'unique'.

独特 refers to being special or having a unique style. 唯一 refers to being the only one in number.

他的设计很独特，但不是唯一的。

唯一 vs 单独 (dāndú)

Both involve 'one'.

单独 means 'alone' or 'by oneself' (action). 唯一 means 'the only one' (identity).

他单独去了那里，他是唯一去的人。

唯一 vs 单一 (dānyī)

Both mean 'single'.

单一 often describes a system or structure that lacks variety (e.g., a single economy). 唯一 is more general.

这个国家的经济结构太单一了。

唯一 vs 专一 (zhuānyī)

Both involve 'one'.

专一 refers to being focused or faithful (e.g., in love). 唯一 is just the count.

他对感情很专一。

唯一 vs 独生 (dúshēng)

Both mean 'only' in family context.

独生 is specifically for children (独生子女). 唯一 is more general.

他是独生子，也是家里唯一的孩子。

Sentence Patterns

这是我唯一的 + Noun

这是我唯一的手机。

Subject + 是 + 唯一 + Verb + 的 + Noun

他是唯一帮我的人。

Noun + 不是 + 唯一 + 的 + Noun

分数不是唯一的标准。

唯一 + 剩下的 + Noun + 是...

唯一剩下的食物是面包。

唯一 + 让人 + Adj + 的是...

唯一让人担心的是天气。

作为 + 唯一的 + Noun...

作为唯一的继承人，他压力很大。

唯一 + 制约/影响 + ...的因素是...

唯一影响结果的因素是时间。

其 + 唯一性 + 在于...

其唯一性在于它的历史价值。

Word Family

Nouns

唯一性 (wéiyīxìng) - uniqueness

Adjectives

唯一 (wéiyī) - sole/only

唯 (wéi)

一 (yī)

只有 (zhǐyǒu)

仅仅 (jǐnjǐn)

独 (dú)

How to Use It

frequency

Very high in both spoken and written Chinese.

Common Mistakes

我唯一喜欢苹果。 → 我只喜欢苹果。 / 苹果是我唯一喜欢的水果。
唯一 is an adjective, not an adverb. It cannot modify the verb '喜欢' directly.
这是唯一理由。 → 这是唯一的理由。
Missing the particle '的' which connects the adjective to the noun.
唯一你来，我才开心。 → 只有你来，我才开心。
Using 唯一 instead of the conditional conjunction 只有.
他是很唯一的人。 → 他是唯一的人。
唯一 is an absolute adjective and should not be modified by '很'.
唯一的一个们。 → 唯一的一个。
You cannot make '唯一' plural with '们' because it inherently refers to a singular 'only' entity.

Tips

The 'De' Rule

Always put '的' after 唯一 when it's before a noun. This is the most common mistake for beginners.

唯一 vs 独特

Remember: 唯一 = Quantity (1). 独特 = Quality (Special). Don't mix them up!

Tone Accuracy

Make sure the second syllable 'yī' is a high flat tone. If you drop it, it might sound like another word.

Formal Contexts

In essays, use 唯一 to narrow down your argument to a single point for more impact.

Pop Songs

Listen to Wang Leehom's '唯一' to hear the word used in its most famous emotional context.

Exclusivity

Use 唯一 when you want to emphasize that NO OTHER options exist. It's a strong word.

Way One

Think: 'Wei' sounds like 'Way'. 'Yi' is 'One'. The 'Way of One'.

News Keywords

When you hear '唯一' in news, get ready for a specific fact about a rare event.

Daily Objects

Label the only things you have (e.g., '唯一的护照') to practice the word in real life.

Not an Adverb

Never say '我唯一去'. Say '我只去' or '我是唯一去的人'.

Memorize It

Mnemonic

Think of 'Wei' as 'Way' and 'Yi' as 'One'. It's the 'Way of One'—the only way, the only one.

Visual Association

Imagine a single spotlight on a dark stage. That one person in the light is the '唯一' person.

Word Web

唯一独一第一专一统一单一万一归一

Challenge

Try to find three things in your room right now that are '唯一' (e.g., your only passport, your only laptop, your only bed).

Word Origin

The word is a compound of '唯' (wéi) and '一' (yī). '唯' originally appeared in oracle bone script as a bird (隹) and a mouth (口), representing a call or a response. Over time, it came to mean 'only' or 'alone.' '一' is the simplest character representing the number one.

Original meaning: In classical texts, '唯' was often used as a particle to start a sentence or to emphasize a single subject. The combination '唯一' solidified in middle Chinese to mean 'the single one.'

Sino-Tibetan

Cultural Context

Be mindful when using '唯一' to describe people in a group, as it can imply others are less important or non-existent.

English speakers often use 'only' as an adverb, but in Chinese, '唯一' is strictly an adjective. This is a major point of interference for learners.

Wang Leehom's song '唯一' (Wéiyī) - a classic Mandopop ballad. The concept of '唯一继承人' in wuxia novels (the sole heir to a secret kung fu style). The phrase '真理是唯一的' (Truth is one/unique) in philosophical debates.

Practice in Real Life

Real-World Contexts

Romance

你是我唯一的爱
唯一的选择
生命中的唯一
唯一的依靠

Logic/Problem Solving

唯一的办法
唯一的解释
唯一的出路
唯一的理由

Business/Legal

唯一继承人
唯一授权
唯一代理
唯一标准

Family

唯一的孩子
唯一的儿子
唯一的女儿
唯一的亲人

Competition

唯一的冠军
唯一的幸存者
唯一打破纪录的人
唯一的对手

Conversation Starters

"你认为努力是成功的唯一途径吗？"

"如果你只能带一件东西去荒岛，你唯一的选择是什么？"

"你是我唯一认识的会说三种语言的人吗？"

"这是你唯一喜欢的中国菜吗？"

"你觉得金钱是衡量幸福的唯一标准吗？"

Journal Prompts

写一写你生命中唯一不能放弃的东西是什么，为什么？

描述一个你曾经面临的、只有唯一选择的困难时刻。

你认为在这个世界上，每个人都是独一无二的吗？为什么？

如果你是世界上唯一的幸存者，你会做什么？

讨论一下为什么‘唯一’这个词在情歌中这么受欢迎。

Frequently Asked Questions

10 questions

Usually no. As an adjective modifying a noun, '的' is required (e.g., 唯一的朋友). The only exception is in poetic or song titles like '你是我的唯一' where it acts as a noun.

唯一 is an adjective (The only reason...). 只有 is a conjunction (Only if you go...). You cannot swap them.

It is neutral. It is used in both casual love songs and formal legal documents.

No. 唯一 is an absolute adjective. You are either the only one or you aren't. You can't be 'very' only.

You say '唯一的事情' or '唯一的东西'.

Yes, very commonly. '他是唯一的幸存者' (He is the sole survivor).

Yes, to describe the 'uniqueness' of a solution (唯一解).

Words like '许多' (many) or '各种' (various).

It's redundant. '他是唯一的一个' is okay, but '他只是唯一的一个' is strange.

Because it expresses the idea of 'the one and only,' which is a very popular romantic theme.