Formal Evaluations: Sufficient and Worthy (足以, 堪, 值得)
Grammar Rule in 30 Seconds
Use 足以, 堪, and 值得 to express high-level evaluations of sufficiency, capacity, or merit in formal contexts.
- 足以 (zúyǐ) + Verb/Noun: Indicates something is sufficient to reach a state. Example: 这足以证明他的清白。
- 堪 (kān) + Verb/Adjective: Indicates capacity to withstand or be worthy of. Example: 堪称完美。
- 值得 (zhídé) + Verb: Indicates merit or worthiness of an action. Example: 这本书值得一读。
Overview
As you advance in your study of Chinese, you'll find that simple evaluative words like 好 (good), 可以 (can), or 够 (enough) lack the precision and formality required for sophisticated expression. In academic, professional, or formal critical contexts, your language needs to reflect the complexity of your thoughts. This is where the advanced evaluative patterns 足以 (zúyǐ), 堪 (kān), and 值得 (zhídé) become essential tools.
These three structures allow you to move beyond stating simple facts and into the realm of nuanced judgment. They don't just describe a state; they assess potential, worthiness, and value. Think of them not as adjectives, but as verbal structures that frame a formal evaluation.
足以 (zúyǐ)is used to assert that a condition is sufficient to logically bring about a certain result. It's analytical and often used when presenting evidence or making a deductive claim.
堪 (kān)is the most formal and literary of the trio. It assesses whether a subject is worthy of or can withstand a high-level classification or judgment. It often appears in established two-character compounds.
值得 (zhídé)evaluates whether the value gained from an action justifies the cost in time, effort, or resources. It's your primary tool for expressing that something is worth it.
Mastering the distinctions between these patterns is a hallmark of a C1-level speaker. It demonstrates that you can not only communicate but also articulate sophisticated evaluations with the authority and nuance of a native professional. They are not interchangeable, and their correct use elevates your Chinese from merely functional to impressively articulate.
How This Grammar Works
足以 (zúyǐ): The Logic of Sufficiency足以 is establishing a logical threshold. It declares that Condition A is powerful or significant enough to meet the requirements for Result B to occur. It's built from 足 (zú), meaning "sufficient," and 以 (yǐ), a classical marker meaning "by means of" or "to." Therefore, 足以 literally means "sufficient by which to..." It answers the question: "Is this cause strong enough for this effect?"足以 is the perfect tool to state that your evidence is conclusive.这些证据足以证明他是无辜的。 (This evidence is sufficient to prove his innocence.)堪 (kān): The Standard of Worthiness堪 is a fossil from Classical Chinese, which is why it feels so formal and primarily exists in compounds today. Its original meaning was "to bear," "to withstand," or "to be capable of." This idea of "withstanding scrutiny" or "bearing a title" is central to its modern use. It evaluates whether a subject can hold up to a particularly high or severe label.堪 is almost never used alone. It acts as a bound morpheme, requiring a second character to form a complete concept. The most common compounds are evaluative verbs:堪称 (kānchēng): "can be called," "is worthy of the name of." Used for high praise.他的演技堪称完美。(His acting can be called perfect.)堪比 (kānbǐ): "can compare with," "is comparable to." Used for favorable comparisons to a high standard.不堪 (bùkān): This negative form means "cannot bear" or, when used as a suffix, "extremely."后果不堪设想。(The consequences are too dreadful to contemplate.)
堪 implies you are judging the subject against a very high, almost absolute, standard.值得 (zhídé): The Calculus of Value值得 is the most common and versatile of the three in educated, everyday speech. Its function is to perform a cost-benefit analysis on an abstract level. The structure is transparent: 值 (zhí) means "value," and 得 (dé) means "to get" or "to obtain." Together, 值得 means something is "value-getting"—the benefit you obtain is greater than the cost (of time, money, or effort) you put in.足以, which is logical, or 堪, which is classificatory, 值得 is about personal or collective judgment of value. For example, 这个博物馆值得花一个下午的时间参观。 (This museum is worth spending an afternoon visiting.) It frames the visit not just as possible, but as a worthwhile use of your time.Formation Pattern
足以 (zúyǐ) Pattern
足以 functions as an adverbial verb, modifying the verb phrase that follows it. The structure is straightforward.
Subject + 足以 + Verb Phrase | 他的一个眼神足以让我安心。 | A single glance from him is sufficient to put me at ease. |
Subject + 不足以 + Verb Phrase | 目前的证据还不足以定罪。 | The current evidence is not yet sufficient to convict. |
Subject is the cause or condition, and the Verb Phrase is the resulting effect or outcome.
堪 (kān) Pattern
堪 is almost always part of a two-character compound. It does not function as a standalone verb.
Subject + 堪称 + Noun/Adj | 堪称 (kānchēng) means "can be called" or "is a classic example of." | 这座桥梁堪称工程学上的奇迹。 | This bridge can be called a miracle of engineering. |
Subject + 堪比 + Noun | 堪比 (kānbǐ) means "is comparable to," usually a high standard. | 这里的风景堪比瑞士。 | The scenery here is comparable to Switzerland. |
不堪 + Verb | 不堪 (bùkān) means the subject cannot withstand the verb's action. | 往事不堪回首。 | The past is too painful to look back on. |
Adj. + 不堪 | Used as a suffix to indicate an extreme negative state. | 他刚跑完马拉松，显得疲惫不堪。 | He just finished the marathon and appeared utterly exhausted. |
值得 (zhídé) Pattern
值得 is flexible and can take a verb, a verb phrase, or even a whole clause as its object. The subject is often implied.
(Subject) + 值得 + Verb (Phrase) | 这部纪录片值得一看。 | This documentary is worth a watch. |
Subject + 值得 + Person + Action | 这个议题值得我们深入讨论。 | This topic is worth our in-depth discussion. |
吗 | ...值得...吗？ | 你觉得这本书值得买吗？ | Do you think this book is worth buying? |
V/Neg-V| ...值不值得...？ | 我们应该考虑一下，这样做值不值得。 | We should consider whether doing it this way is worth it. |
...是值得的。 | Using 的 (de) turns it into a descriptive phrase, often at the end of a sentence. | 所有的努力最终都是值得的。 | All the effort was worth it in the end. |
When To Use It
足以 and 堪. Use them in reports, essays, formal presentations, and written critiques.- Use
足以when constructing a logical argument or presenting findings. It adds a layer of analytical certainty. In a business proposal, you might write:我们的初步研究足以表明该市场的巨大潜力。(Our preliminary research is sufficient to show the huge potential of this market.) - Use
堪(in its compounds) for high-level praise or serious criticism in artistic, literary, or academic reviews.这篇论文的论证堪称严谨。(The argumentation of this thesis can be called rigorous.) For expressing grave concern,令人堪忧 (lìng rén kānyōu)is a standard formal phrase:该地区的环境污染问题令人堪忧。(The environmental pollution problem in that area is worrying.)
值得 is very common, while 足以 can be used to make a strong point. 堪 compounds are rarer in speech but can be used for emphasis.- Use
值得constantly for recommendations, suggestions, and evaluations. It is the standard way to express "worth it" in a professional or educated setting.我同意你的看法，这个方案确实值得一试。(I agree with your view; this plan is indeed worth a try.) - Use
足以in speech to add weight to a conclusion.他今天的表现足以证明他的能力。(His performance today is sufficient to prove his ability.)
堪称一绝 (can be called a masterpiece) would be humorous but stylistically bizarre. For simple sufficiency, use 够 (gòu).能 (néng) or 可以 (kěyǐ). These formal patterns are like a suit and tie—essential for the right occasion, but out of place at the beach.足以 | Emphasizes the sufficiency of the evidence/cause. | 这些统计数据足以说明一切。 |值得 | Evaluates the value gained vs. time/money spent. | 这部电影绝对值得一看。 |堪称 | Ascribes a high-status label; very formal. | 他的画作堪称艺术品。 |堪忧/不堪 | Formal, serious phrases for worrying or unbearable states. | 公司的未来令人堪忧。 |Common Mistakes
足以 (zúyǐ) with 够 (gòu)够 expresses simple sufficiency of quantity or degree. 足以 expresses logical sufficiency to cause a result. Using 足以 for simple quantities is overkill.- Incorrect:
我的钱足以买一杯咖啡。|wǒ de qián zúyǐ mǎi yībēi kāfēi. - Why: While grammatically not entirely wrong, it's stylistically terrible. It frames buying coffee as a logical outcome of having money, which is unnecessarily formal. It's like saying "My funds are sufficient to facilitate the purchase of one coffee beverage."
- Correct:
我的钱够买一杯咖啡。|wǒ de qián gòu mǎi yībēi kāfēi. - Correct Use of
足以:他的警告足以让我们保持警惕。(His warning is sufficient to make us stay vigilant.)
堪 (kān) as a Standalone Verb堪 is a bound morpheme. It cannot be used by itself.- Incorrect:
这幅画很堪。|zhè fú huà hěn kān. - Why:
堪has no meaning on its own in this context. It must be part of a compound. - Correct:
这幅画堪称杰作。|zhè fú huà kānchēng jiézuò.(This painting can be called a masterpiece.)
值得 (zhídé) with a Simple Adjective值得 requires a verb, verb phrase, or nominalized clause as its object. It evaluates the worth of an action, not a quality.- Incorrect:
这个地方值得美丽。|zhège dìfāng zhídé měilì. - Why: You are not evaluating the "worth of being beautiful." You are evaluating the worth of an action related to the place.
- Correct:
这个地方值得参观。|zhège dìfāng zhídé cānguān.(This place is worth visiting.) - Correct:
他的奉献精神值得我们尊敬。|tā de fèngxiàn jīngshén zhídé wǒmen zūnjìng.(His spirit of dedication is worth our respect.)
不堪 (bùkān)不堪 is not a simple negation of 堪. It does not mean "not worthy." It has two specific, negative meanings:- 1. Cannot withstand/bear:
不堪一击 (bùkān yījī)means "cannot withstand a single blow." - 2. Extremely (negative suffix):
疲惫不堪 (píbèi bùkān)means "utterly exhausted."狼狈不堪 (lángbèi bùkān)means "in a total mess." - Mistake: Thinking
他不堪means "He is not worthy." It is meaningless without context.
值得 (zhídé) with 值 (zhí)值 (zhí) primarily refers to monetary or numerical value. 值得 refers to abstract, subjective worth.值(Value):这块玉值多少钱？(How much is this piece of jade worth?)值得(Worth it):花钱买知识是值得的。(Spending money to acquire knowledge is worth it.)
Real Conversations
Seeing these patterns in natural contexts helps solidify their meaning. Notice how the choice of word reflects the tone and intent of the speaker.
Scenario 1
Subject
> 王经理 (Manager Wang):
> 李婷，你看了市场部发来的最新报告吗？我担心它的数据不足以支撑我们下一季度的扩张计划。
> Lǐ Tíng, nǐ kànle shìchǎng bù fā lái de zuìxīn bàogào ma? Wǒ dānxīn tā de shùjù bùzúyǐ zhīchēng wǒmen xià yí jìdù de kuòzhāng jìhuà.
> (Li Ting, have you seen the latest report from the marketing department? I'm worried its data is not sufficient to support our expansion plan for the next quarter.)
>
> 李婷 (Li Ting):
> 王经理，我正要跟您说。报告我看过了，确实有些地方前景令人堪忧。不过，我认为其中关于用户增长的部分还是值得我们深入分析的。或许我们可以调整一下策略。
> Wáng jīnglǐ, wǒ zhèng yào gēn nín shuō. Bàogào wǒ kànguòle, quèshí yǒuxiē dìfāng qiánjǐng lìng rén kānyōu. Bùguò, wǒ rènwéi qízhōng guānyú yònghù zēngzhǎng de bùfèn háishì zhídé wǒmen shēnrù fēnxī de. Huòxǔ wǒmen kěyǐ tiáozhěng yīxià cèlüè.
> (Manager Wang, I was just about to tell you. I've read the report, and indeed some aspects of the outlook are worrying. However, I think the part about user growth is still worth our in-depth analysis. Perhaps we can adjust our strategy.)
Scenario 2
> @爱书的猫 (@àishūdemāo):
> 刚读完《深空》，作者的想象力堪称一绝！书里构建的宇宙观宏大而自洽，很多细节足以引发读者长时间的思考。虽然价格有点贵，但绝对值得收藏。
> Gāng dú wán “Shēnkōng”, zuòzhě de xiǎngxiànglì kānchēng yī jué! Shū lǐ gòujiàn de yǔzhòuguān hóngdà ér zìqià, hěnduō xìjié zúyǐ yǐnfā dúzhě cháng shíjiān de sīkǎo. Suīrán jiàgé yǒudiǎn guì, dàn juéduì zhídé shōucáng.
> (Just finished reading "Deep Space," the author's imagination can be called second to none! The worldview constructed in the book is grand and self-consistent, and many details are sufficient to provoke long periods of thought from the reader. Although the price is a bit high, it's absolutely worth adding to your collection.)
Quick FAQ
足以 (zúyǐ) only be used for positive outcomes?No, not at all. 足以 is neutral and concerns only logical sufficiency. It works just as well for negative results. For example: 他的一次疏忽就足以毁掉整个项目。 (A single act of negligence on his part was sufficient to ruin the entire project.)
堪称 (kānchēng) feels very strong. Is there a softer alternative for "can be said to be"?Yes. The most common and less formal alternative is 可以说是 (kěyǐ shuō shì). Use 可以说是 for general observations (他可以说是我们公司最努力的员工。|tā kěyǐ shuō shì wǒmen gōngsī zuì nǔlì de yuángōng.) and reserve 堪称 for when you are bestowing a very high, almost official, level of praise (他的表演堪称完美。|tā de biǎoyǎn kānchēng wánměi.).
值得 (zhídé) and 值得的 (zhídé de)?值得 is the verb form that precedes the object (the action being evaluated): 这本书值得一读。 (This book is worth reading.) 值得的 uses the particle 的 to turn the phrase into an adjectival predicate, typically used at the end of a sentence to state that something was, in fact, worth it. 我们所有的付出都是值得的。 (All of our efforts were worth it.)
值不值得 different from 值得吗?They are very similar, but the 值不值得 (zhí bù zhídé) V/not-V pattern often implies a more deliberative or internal debate. It invites a more considered response. 值得吗 (zhídé ma) is a more straightforward yes/no question. In many cases, they are interchangeable.
情何以堪 (qíng hé yǐ kān). What does this 堪 phrase mean?This is a famous literary idiom from Classical Chinese. It means "How can one bear the emotions?" or "(The situation is so embarrassing/sad/awkward that) it's emotionally unbearable." It is highly literary and used to express extreme emotional distress or embarrassment.
足以 in daily conversation?It's rare in casual chat. You might hear it in a serious discussion, a debate, or a presentation. If your friend tells you they're tired, responding 你的黑眼圈足以证明你没睡好。 (Your dark circles are sufficient to prove you didn't sleep well) would sound overly formal and analytical. You'd more likely say 看来你真的没睡好。 (Looks like you really didn't sleep well.)
Evaluative Predicate Structure
| Marker | Function | Followed By | Register |
|---|---|---|---|
|
足以
|
Sufficiency
|
Verb/Clause
|
Formal
|
|
堪
|
Capacity/Endurance
|
Verb/Noun
|
Formal
|
|
值得
|
Merit
|
Verb/Noun
|
Neutral
|
Meanings
These terms function as formal evaluative predicates that qualify the nature, sufficiency, or worth of an action or state.
Sufficiency (足以)
Indicates that the preceding subject or action is enough to achieve a specific result.
“这笔钱足以支付学费。”
“这些证据足以定罪。”
Capacity/Endurance (堪)
Indicates the ability to bear, endure, or reach a standard of quality.
“他堪当大任。”
“这幅画堪称杰作。”
Merit (值得)
Indicates that an object or action is worth the investment of time, effort, or money.
“这个项目值得投资。”
“这趟旅行非常值得。”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
Subject + 足以 + Verb
|
这足以改变一切。
|
|
Negative
|
Subject + 不足以 + Verb
|
这不足以解决问题。
|
|
Affirmative
|
Subject + 堪 + Verb
|
此景堪称一绝。
|
|
Negative
|
Subject + 不堪 + Verb
|
他不堪重负。
|
|
Affirmative
|
Subject + 值得 + Verb
|
这值得尝试。
|
|
Negative
|
Subject + 不值得 + Verb
|
这不值得生气。
|
Formality Spectrum
这部电影值得观赏。 (Movie Review)
这部电影值得看。 (Movie Review)
这片子挺值得看的。 (Movie Review)
这片儿值了。 (Movie Review)
Evaluative Predicate Map
Sufficiency
- 足以 sufficient to
Capacity
- 堪 capable of
Merit
- 值得 worth
Examples by Level
这够了。
This is enough.
这电影值得看。
This movie is worth watching.
这笔钱足以买车。
This money is enough to buy a car.
他的表现堪称完美。
His performance can be called perfect.
这些证据足以推翻原判。
This evidence is sufficient to overturn the original verdict.
此人堪当大任，不可小觑。
This person is capable of great responsibility and should not be underestimated.
Easily Confused
Learners often use them interchangeably, but 足以 is a formal evaluative predicate while 足够 is a general adjective/adverb.
Learners use 值 as a verb, but it's usually an adjective.
Learners use 能 for everything, but 堪 is for endurance or high-level evaluation.
Common Mistakes
这够值得。
这很值得。
他足以做这个。
他足以胜任这个。
这值得买。
这值得购买。
我不堪。
我不堪重负。
这足以好。
这足够好。
他堪做老师。
他堪称老师。
这不值得去。
这不值得一去。
这足以证明。
这足以证明这一点。
他堪大任。
他堪当大任。
这值得被做。
这值得做。
这足以让他失败。
这足以导致他的失败。
他堪称天才。
他堪称天才人物。
这不值得讨论。
这不值得深究。
这足以说明。
这足以说明问题。
Sentence Patterns
这___证明了他的能力。
他___大任。
这个决定___。
这些钱___支付费用。
Real World Usage
证据足以定罪。
此片堪称杰作。
该项目值得投资。
这不值得生气。
我堪当此任。
此地值得一游。
Context is King
Don't Overuse
Use Set Phrases
Politeness
Smart Tips
Use 足以 to make your arguments sound more evidence-based.
Use 值得 to show you have evaluated the quality.
Use 堪当 to sound authoritative.
Use 不足以 to show doubt.
Pronunciation
足以
zúyǐ - Ensure the second tone on zú is clear.
堪
kān - First tone, flat and high.
值得
zhídé - Second tone + neutral tone.
Formal emphasis
这 | 足以 | 证明。
Pause slightly after the marker for impact.
Memorize It
Mnemonic
Think of '足以' as 'enough to reach the goal', '堪' as 'can handle the weight', and '值得' as 'worth the price'.
Visual Association
Imagine a scale: '足以' balances the result, '堪' holds up a heavy load, and '值得' puts a gold coin on the value side.
Rhyme
足以够用显程度，堪称杰作有风度，值得一试好态度。
Story
A scholar is reading a book. He says, 'This book is `值得` (worth) reading.' He then looks at his notes and says, 'These notes are `足以` (sufficient) to pass the exam.' Finally, he looks at his mentor and says, 'He `堪` (is capable of) being my teacher.'
Word Web
Challenge
Write three sentences about your day using each of the three markers.
Cultural Notes
Used heavily in formal news and political discourse.
Common in literary and academic writing.
Often mixed with Cantonese, but formal writing remains standard.
These terms are derived from Classical Chinese, where they functioned as auxiliary verbs.
Conversation Starters
你觉得这部电影值得看吗？
你认为这些证据足以定罪吗？
谁堪称你心目中的英雄？
这个项目值得投资吗？
Journal Prompts
Common Mistakes
Test Yourself
这笔钱___支付学费。
Which is most formal?
Find and fix the mistake:
他堪做大任。
值得 / 这 / 尝试 / 是
This is worth it.
Answer starts with: 这值得...
Match each item on the left with its pair on the right:
足以 is used for merit.
A: 这电影好吗? B: ___.
Score: /8
Practice Exercises
8 exercises这笔钱___支付学费。
Which is most formal?
Find and fix the mistake:
他堪做大任。
值得 / 这 / 尝试 / 是
This is worth it.
Match 足以, 堪, 值得
足以 is used for merit.
A: 这电影好吗? B: ___.
Score: /8
Practice Bank
10 exercises你准备的资料已经___证明你的观点了。
那里的环境污染令人足以。
值得 / 大家的 / 这个 / 方案 / 讨论
This movie can be called a classic.
Select the correct phrase:
Match the columns:
这个问题根本不___讨论。
他的工资堪让他买房。
证据 / 并不 / 定罪 / 足以 / 这些
Which sounds most professional in a report?
Score: /10
FAQ (8)
Only if you are being very formal or ironic. Stick to 够 for texts.
堪称 is a set phrase meaning 'can be called'. It's very common.
Usually, but it can be followed by a noun phrase like '值得一试'.
Add 不 before the marker: 不足以, 不堪, 不值得.
Yes, they are standard Mandarin, though usage frequency varies.
值得 is a verb phrase, 值 is an adjective.
Yes, they are highly recommended for academic writing.
Not really, they are quite consistent in their usage.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Suficiente / Merecer
Spanish uses verb conjugation, Chinese does not.
Suffisant / Mériter
French requires agreement.
Genug / Wert sein
German word order is more flexible.
十分 / 値する
Japanese uses particles.
كاف / يستحق
Arabic has a complex root system.
够 / 值
Register is the main difference.
Learning Path
Prerequisites
Related Videos
Related Grammar Rules
Formal Hedging in Chinese: It Seems, I'm Afraid, Perhaps (似乎, 恐怕, 或许)
Overview In Chinese, as in any language, how you state a fact is as important as the fact itself. Advanced communicatio...
The 'Snake in the Cup' Idiom: Understanding `杯弓蛇影`
Overview At the heart of many Chinese idioms, or `{成语|chéngyǔ}`, lies a story that encapsulates a specific human expe...
Formal Degree Modifiers: 极其, 至为, 颇为
Overview In Chinese, expressing degrees of intensity goes far beyond the common adverbs `很` (hěn) and `非常` (fēicháng...
Formal Suffixes: -ity, -ize, & Degree (性, 化, 度)
Overview In your journey to Chinese fluency, you move from describing the world to analyzing it. You stop just saying a...
Advanced Formal Passives: 为...所 and 见
Overview At the C1 level, mastering register is as crucial as mastering grammar. While `被 (bèi)` is the all-purpose pa...
