At the A1 level, you can think of 刻苦 (kèkǔ) simply as 'very, very hardworking.' While you might first learn the word 努力 (nǔlì), 刻苦 is a special word used to describe students who study for many hours or athletes who train very hard. It is made of two parts: '刻' (to carve) and '苦' (bitter). In Chinese culture, working hard is often called 'eating bitterness.' So, when you are 刻苦, you are willing to do the difficult, 'bitter' work to be successful. You will mostly see this word in school contexts. For example: 'He is a 刻苦 student.' Even at A1, knowing this word helps you understand how much people value hard work in China.
At the A2 level, you should begin to distinguish 刻苦 (kèkǔ) from the general word for effort, 努力 (nǔlì). While 努力 can be used for any effort (like '努力 work today'), 刻苦 is an adjective that describes a person's character or a long-term habit of working through difficulties. It is commonly used in the phrase '刻苦学习' (study assiduously). You might hear a teacher say, 'If you want to pass the HSK, you must be 刻苦.' It often describes someone who gives up their free time or sleep to achieve a goal. It is a very positive word and is a great way to compliment someone's dedication to their studies or a new skill like learning Chinese.
At the B1 level, 刻苦 (kèkǔ) is an essential vocabulary word for discussing education, careers, and personal achievements. You should be able to use it as both an adjective ('他是一个刻苦的人') and an adverb ('他刻苦地工作'). At this level, you can understand its cultural significance: it represents the 'grit' required to succeed in a competitive environment. You will see it in biographies of famous people or in news stories about students who overcome poverty. It is also part of common four-character phrases like '刻苦耐劳' (hardworking and able to endure hardship). Understanding this word helps you engage with the Chinese value system regarding merit and perseverance.
At the B2 level, you should master the nuanced differences between 刻苦 (kèkǔ) and its synonyms like 勤奋 (qínfèn) or 勤劳 (qínfèn). 刻苦 specifically highlights the 'painstaking' nature of the work—the fact that it is not easy and requires significant mental or physical endurance. You should be able to use it in more formal contexts, such as writing an essay about the factors of success. You will encounter it in academic texts and literature where it describes the intense focus needed for '钻研' (deep research). Using 刻苦 correctly in your writing shows a sophisticated understanding of Chinese social values and a high level of linguistic precision.
At the C1 level, your understanding of 刻苦 (kèkǔ) should include its historical and philosophical roots. You can discuss how the concept of 'carving bitterness' relates to traditional Chinese education and the imperial examination system. You should be able to recognize it in classical-style modern prose and understand its use in political or social slogans. At this level, you can also identify when the word is used rhetorically to emphasize a collective struggle or national spirit. You should be comfortable using it in complex sentence structures, such as '凭借着刻苦不懈的努力...' (Relying on assiduous and unremitting efforts...). It becomes a tool for expressing deep respect for the human spirit's ability to transcend hardship.
At the C2 level, 刻苦 (kèkǔ) is a word you use with complete native-like precision, recognizing its subtle connotations in various registers. You understand how it contrasts with modern concepts like 'lying flat' (躺平) in contemporary social critiques. You can use it in high-level academic writing or professional speeches to characterize the rigorous methodology of a researcher or the steadfastness of a leader. You also recognize its presence in classical idioms and how it has evolved from describing physical frugality to describing mental discipline. Your mastery of 刻苦 allows you to navigate the most formal and culturally dense Chinese environments with an appreciation for the profound moral weight the word carries.

刻苦 in 30 Seconds

  • 刻苦 (kèkǔ) is a powerful adjective meaning 'hardworking' or 'assiduous,' emphasizing the endurance of hardship to achieve goals.
  • It is composed of 'carve' and 'bitter,' symbolizing the act of etching success through difficult and uncomfortable labor.
  • Commonly used in school and sports contexts, it praises those who show extreme discipline and grit over a long period.
  • Unlike the general '努力' (effort), '刻苦' implies a deeper moral character and a willingness to make personal sacrifices.

The Chinese term 刻苦 (kèkǔ) is a profound adjective that translates most directly to 'hardworking,' 'assiduous,' or 'painstaking.' However, to truly understand its weight in Chinese culture, one must look at the literal meaning of the characters. 刻 (kè) means to carve, engrave, or cut, while 苦 (kǔ) means bitter or hardship. Together, they evoke the image of someone 'carving through bitterness' or 'engraving their will into hardship.' This isn't just about working long hours; it is about a disciplined, resilient approach to overcoming obstacles through sheer persistence and the endurance of discomfort.

Cultural Nuance
In Chinese society, being described as 刻苦 is one of the highest compliments a student or professional can receive. It suggests that the person does not rely solely on natural talent but possesses the moral character to endure 'bitterness' (hardship) to reach their goals. It is deeply rooted in the Confucian ethic that emphasizes effort over innate ability.

You will most frequently encounter this word in educational contexts, sports training, and biographical narratives of successful individuals. When a teacher tells a student to 刻苦学习 (kèkǔ xuéxí), they are not just saying 'study hard'; they are encouraging the student to embrace the struggle of learning, to be meticulous, and to never give up even when the material is exhausting or difficult.

他在学习上非常刻苦,每天都复习到深夜。 (He is very hardworking in his studies, reviewing until late every night.)

Common Usage
It is often paired with verbs like 学习 (study), 钻研 (research/delve into), and 训练 (train). It describes a state of being where one is fully committed to a task, often at the expense of leisure or physical comfort.

Historically, 刻苦 was associated with scholars who studied by the light of fireflies or reflected moonlight because they were too poor to buy oil for lamps. This historical weight remains in the word today. When you use 刻苦, you are describing a person who has 'grit' in the modern psychological sense—the passion and perseverance for long-term goals.

只有通过刻苦的训练,才能成为顶尖的运动员。 (Only through assiduous training can one become a top athlete.)

In a professional setting, an employer might praise an employee for their 刻苦精神 (kèkǔ jīngshén - spirit of hard work). This suggests the employee is reliable, takes on difficult tasks without complaining, and is dedicated to the company's success. It is a word that bridges the gap between simple labor and a virtuous dedication to one's craft.

她凭着刻苦耐劳的精神,在事业上取得了成功。 (With her spirit of hard work and endurance, she achieved success in her career.)

Synonym Comparison
Compared to 勤奋 (qínfèn - diligent), 刻苦 emphasizes the 'bitterness' or the struggle involved. 勤奋 is more about the frequency and consistency of the work, while 刻苦 highlights the toughness required to do it.

In summary, 刻苦 is a word that carries the weight of history and the values of a culture that prizes endurance. It is used to inspire, to praise, and to describe a level of dedication that goes beyond the ordinary. Whether you are talking about a scientist in a lab or a child learning to play the piano, 刻苦 is the key to unlocking mastery.

Using 刻苦 (kèkǔ) correctly requires understanding its grammatical flexibility as an adjective and an adverb. While it primarily functions as an adjective to describe people or their efforts, it is frequently used in adverbial phrases to describe *how* an action is performed.

As an Adjective
When used directly as an adjective, it often follows a linking verb like '是' (shì) or '变得' (biànde), or it is modified by an intensive like '很' (hěn), '非常' (fēicháng), or '十分' (shífēn). For example: '他很刻苦' (He is very hardworking).

要想取得好成绩,你必须更加刻苦。 (To get good grades, you must be more hardworking.)

When 刻苦 modifies a noun, it usually takes the particle '的' (de). Common nouns it modifies include 精神 (spirit), 努力 (effort), and 态度 (attitude). For instance, '刻苦的精神' (a spirit of hard work) is a very common collocation used in speeches and formal writing.

他的成功源于他那刻苦的学习态度。 (His success stems from his hardworking study attitude.)

As an Adverb
To use 刻苦 as an adverb, you typically place it before a verb, often with the particle '地' (de), although '地' is sometimes omitted in four-character idioms or common pairings. The most common pairing is 刻苦学习 (study hard).

为了考上理想的大学,他每天都刻苦地钻研课本。 (In order to get into his ideal university, he delves into his textbooks assiduously every day.)

A more advanced usage involves the construction '刻苦耐劳' (kèkǔ nàiláo), which is a set phrase meaning 'hardworking and able to endure hardship.' This is often used to describe the character of a person or a group, such as an entire generation of workers.

老一代移民大多具有刻苦耐劳的品质。 (Most of the older generation of immigrants possess the quality of being hardworking and able to endure hardship.)

Sentence Patterns
1. [Subject] + [Adverb] + 刻苦 (e.g., 他非常刻苦)
2. [Subject] + 刻苦地 + [Verb] (e.g., 她刻苦地练习钢琴)
3. [Subject] + 有 + 刻苦的 + [Noun] (e.g., 他有刻苦的精神)

When writing or speaking, remember that 刻苦 is a positive, commendatory word. It is rarely used in a negative context unless you are criticizing someone for *not* being 刻苦 (e.g., '他不够刻苦' - He is not hardworking enough). It is an ideal to strive for.

只要你肯刻苦下功夫,就没有办不成的事。 (As long as you are willing to put in assiduous effort, there is nothing that cannot be done.)

In conclusion, mastering the use of 刻苦 involves knowing when to apply it to a person's character versus their actions. It is a versatile word that conveys a deep sense of respect for the effort involved in achievement.

In contemporary Chinese life, 刻苦 (kèkǔ) is a staple of motivational discourse. You will hear it in schools, sports arenas, corporate boardrooms, and in the media. It is the 'secret sauce' of the Chinese success story.

In Schools
From primary school to university, teachers use 刻苦 to motivate students. During the Gaokao (National College Entrance Exam) season, slogans like '刻苦拼搏' (kèkǔ pīnbó - struggle assiduously) are plastered across classroom walls. It is the language of academic discipline.

老师经常表扬那些学习刻苦的学生。 (The teacher often praises those students who study hard.)

In the realm of sports, 刻苦 describes the grueling training routines of athletes. When a sports commentator discusses a gold medalist, they will almost certainly mention their 刻苦训练 (kèkǔ xùnliàn). In this context, it emphasizes that the victory was earned through sweat and sacrifice, not just luck.

台上一分钟,台下十年功,这离不开平时的刻苦。 (One minute on stage requires ten years of work offstage; this cannot be separated from usual assiduousness.)

Television dramas and movies also use 刻苦 to build character. A protagonist who comes from a poor background but rises to the top through 刻苦 learning is a classic trope in Chinese storytelling. It resonates with the audience's belief in social mobility through effort.

这部电影讲述了一个贫苦少年通过刻苦奋斗改变命运的故事。 (This movie tells the story of a poor boy who changed his fate through assiduous struggle.)

News and Media
News reports on scientific breakthroughs or technological advancements often attribute the success to the researchers' 刻苦钻研. It frames scientific progress as a heroic struggle against the unknown.

Finally, you might hear it in family settings. Parents often use the word to compare their children's efforts to their own or to successful relatives. '你要向你表哥学习,他从小就很刻苦' (You should learn from your cousin; he has been very hardworking since he was a child) is a common refrain in many households.

只有刻苦努力,将来才能过上好日子。 (Only by working hard can you lead a good life in the future.)

Whether in a formal speech or a casual conversation about success, 刻苦 remains the definitive word for describing the type of effort that Chinese culture values most: sustained, disciplined, and resilient.

While 刻苦 (kèkǔ) is a common word, learners often stumble over its specific nuances and its relationship with similar terms like 努力 (nǔlì) and 勤奋 (qínfèn).

Mistake 1: Overusing it for simple tasks
One common mistake is using 刻苦 for minor or short-term efforts. For example, saying 'I worked hard for ten minutes' using 刻苦 sounds strange. 刻苦 implies a long-term, sustained discipline. For short-term effort, use 努力 (nǔlì).

Incorrect: 我今天下午刻苦了半小时。 (I was assiduous for half an hour this afternoon.)
Correct: 我今天下午努力学习了半小时。

Another error is confusing 刻苦 with 辛苦 (xīnkǔ). While both involve hardship, 辛苦 is often used to describe how tiring or laborious a task is, or to express gratitude (e.g., 'You've worked hard' - 辛苦了). 刻苦 describes the *quality* and *attitude* of the person doing the work.

Incorrect: 你的工作太刻苦了。 (Your work is too assiduous - doesn't make sense.)
Correct: 你的工作太辛苦了。 (Your work is very tiring/laborious.)

Mistake 2: Confusing with 勤奋 (qínfèn)
While often interchangeable, 勤奋 focuses on being 'diligent' or 'industrious' (doing things frequently and carefully), whereas 刻苦 focuses on 'enduring hardship' while working. You can be 勤奋 without necessarily suffering, but 刻苦 always implies a level of self-sacrifice.

A stylistic mistake is using 刻苦 in very informal or slang-heavy speech. It is a somewhat formal, 'high-register' word. Using it in a casual text about playing video games might come across as sarcastic or overly dramatic.

Context: Talking about a hobby.
Better: 他很投入 (tóurù - immersed/devoted) instead of 刻苦.

Finally, ensure you don't confuse the characters. 刻 (kè) has a 'knife' radical (刂) on the right, signifying the 'carving' aspect. If you write it incorrectly, the meaning is lost. The character 苦 (kǔ) has the 'grass' radical (艹) on top, originally referring to bitter herbs.

Summary of Distinctions
- 努力 (nǔlì): General effort, can be short-term.
- 刻苦 (kèkǔ): Sustained effort involving hardship/discipline.
- 勤奋 (qínfèn): Diligent, frequent effort.
- 辛苦 (xīnkǔ): Tiring, physically demanding (often used for others).

To enrich your Chinese vocabulary, it is helpful to know the synonyms and alternatives to 刻苦 (kèkǔ). Each word has a slightly different 'flavor' and is used in different contexts.

1. 勤奋 (qínfèn)
Meaning: Diligent, industrious. This is the most common synonym. It emphasizes consistency. A 勤奋 person works every day without fail. It is often used in the phrase '勤奋好学' (diligent and fond of learning).

他是一个勤奋的员工。 (He is a diligent employee.)

2. 努力 (nǔlì)
Meaning: Hardworking, to make an effort. This is the most general and versatile word. It can be used as a verb or an adjective. While 刻苦 is a character trait, 努力 is often an action.

我们要努力工作。 (We need to work hard.)

3. 勤劳 (qínláo)
Meaning: Industrious and brave (literally), but usually just 'hardworking' in a manual or physical sense. It is often used to describe farmers or laborers. '勤劳的中国人民' (the industrious Chinese people) is a common set phrase.
4. 卖力 (màilì)
Meaning: To exert oneself, to put in a lot of effort. This is more informal and sometimes implies working hard to please someone else or to show off. It literally means 'selling strength.'

他在老板面前表现得很卖力。 (He exerts himself a lot in front of the boss.)

5. 奋发 (fènfā)
Meaning: To exert oneself, to rouse oneself to action. It is often used in the context of '奋发向上' (striving for progress). It has a more energetic, upward-moving connotation than the endurance-focused 刻苦.

In summary, choose 刻苦 when you want to emphasize the **endurance of hardship** and **grit**. Choose 勤奋 for **regularity and care**, 努力 for **general effort**, and 勤劳 for **physical labor**. By selecting the right word, you can convey a much more precise meaning in your Chinese conversations and writing.

How Formal Is It?

Fun Fact

The character '苦' has the 'grass' radical because it originally described the taste of specific plants used in medicine. In Chinese culture, 'bitterness' is almost always associated with growth and success.

Pronunciation Guide

UK /kəː kʰuː/
US /kə kʰu/
The stress is balanced between both syllables, but the tones (fourth and third) are crucial for clarity.
Rhymes With
乐苦 (lèkǔ) 热度 (rèdù) 刻度 (kèdù) 业务 (yèwù) 任务 (rènwu) 事故 (shìgù) 艺术 (yìshù) 技术 (jìshù)
Common Errors
  • Pronouncing 'ke' like 'key'. It should be a neutral vowel sound.
  • Missing the third tone on 'ku', making it sound like 'kù' (bitter/cool).
  • Not aspirating the 'k' sounds.
  • Confusing 'kè' with 'kě' (can/may).
  • Pronouncing 'ku' as 'koo' without the dip.

Difficulty Rating

Reading 3/5

The characters are moderately complex but very common in educational texts.

Writing 4/5

The character '刻' is often confused with '该' or '刻' (time). '苦' is easier but requires correct stroke order.

Speaking 2/5

Easy to pronounce if you master the 4th and 3rd tones.

Listening 2/5

Very recognizable in school and sports contexts.

What to Learn Next

Prerequisites

努力 学习 工作 辛苦 成功

Learn Next

勤奋 毅力 坚持 钻研 奋斗

Advanced

孜孜不倦 废寝忘食 悬梁刺股 砥砺前行 锲而不舍

Grammar to Know

Adjectives as Adverbs (地)

他刻苦地工作。 (He works assiduously.)

Complement of Degree (得)

他学习得非常刻苦。 (He studies very hard.)

The 'Only... Then...' structure (只有...才...)

只有刻苦,才能进步。 (Only by working hard can one progress.)

Modifying Nouns with '的'

刻苦的精神是必要的。 (A hardworking spirit is necessary.)

Reduplication of Adjectives (AABB - not common for 刻苦, but related)

Though 刻苦 is rarely reduplicated as 刻刻苦苦, similar words like 勤勤恳恳 are.

Examples by Level

1

他学习很刻苦。

He studies very hard.

Subject + Verb + Very + Adjective.

2

我们要刻苦学习。

We need to study hard.

We + must + hard + study.

3

她是一个刻苦的学生。

She is a hardworking student.

She + is + a + hardworking + student.

4

他不刻苦。

He is not hardworking.

Negative '不' before the adjective.

5

刻苦很重要。

Hard work is very important.

Noun phrase as subject.

6

你刻苦吗?

Are you hardworking?

Question with '吗'.

7

老师喜欢刻苦的孩子。

Teachers like hardworking children.

Verb + Adjective + Noun.

8

每天刻苦一点点。

Be a little hardworking every day.

Adverbial of time + Adjective + a little.

1

他为了考试,每天都很刻苦。

For the exam, he is very hardworking every day.

Purpose phrase + Subject + Adjective.

2

只有刻苦,才能成功。

Only by being hardworking can you succeed.

Only... then... structure.

3

她在刻苦练习钢琴。

She is practicing the piano assiduously.

Continuous action with '在'.

4

这孩子从小就很刻苦。

This child has been very hardworking since childhood.

Time phrase + Adjective.

5

他刻苦地背单词。

He is memorizing words assiduously.

Adverbial marker '地'.

6

刻苦是好习惯。

Hard work is a good habit.

Subject + is + Noun phrase.

7

虽然累,但他很刻苦。

Although tired, he is very hardworking.

Although... but... structure.

8

请你刻苦一点。

Please be a bit more hardworking.

Request + Adjective + a little.

1

他凭着刻苦的精神考上了大学。

He got into university by relying on a spirit of hard work.

Relying on + Noun phrase.

2

我们要学习他刻苦钻研的态度。

We should learn from his attitude of assiduous research.

Learn from + Person + Noun phrase.

3

他在工作中表现得非常刻苦。

He performed very assiduously in his work.

Verb + complement marker '得'.

4

刻苦耐劳是中华民族的传统美德。

Hard work and endurance are traditional virtues of the Chinese nation.

Four-character idiom as subject.

5

他刻苦训练,终于拿到了金牌。

He trained assiduously and finally won the gold medal.

Serial verb construction.

6

这些书需要刻苦阅读才能理解。

These books require assiduous reading to understand.

Need + Adjective + Verb.

7

他虽然天分不高,但非常刻苦。

Although he is not very talented, he is very hardworking.

Contrast between talent and effort.

8

他的成功离不开刻苦奋斗。

His success cannot be separated from assiduous struggle.

Cannot be separated from + Noun phrase.

1

他这种刻苦自励的精神值得我们学习。

His spirit of assiduous self-encouragement is worth learning from.

Compound adjective modifying 'spirit'.

2

在艰苦的环境下,他依然保持着刻苦的作风。

In a harsh environment, he still maintained a hardworking style.

Prepositional phrase + Adverb + Verb.

3

只有刻苦钻研,才能攻克技术难关。

Only by assiduous research can technical difficulties be overcome.

Conditional '只有...才能...'.

4

他刻苦攻读法律,终于成为了律师。

He studied law assiduously and finally became a lawyer.

Verb '攻读' implies intensive study.

5

刻苦并不是盲目努力,而是有目标地奋斗。

Hard work is not blind effort, but purposeful struggle.

Not... but... structure.

6

他以刻苦著称,深受同事尊敬。

He is known for his hard work and is deeply respected by colleagues.

'以...著称' (known for...).

7

这种刻苦的精神在年轻人中尤为重要。

This spirit of hard work is especially important among young people.

Especially + Adjective.

8

他通过刻苦经营,将小店变成了大公司。

Through assiduous management, he turned the small shop into a big company.

Through + Noun phrase + Verb phrase.

1

他那种刻苦砥砺、百折不挠的意志令人钦佩。

His will of assiduous self-tempering and indomitability is admirable.

Use of high-level idioms like '百折不挠'.

2

学术研究需要一种刻苦钻研、求真务实的态度。

Academic research requires an attitude of assiduous study and seeking truth from facts.

Parallel adjectives modifying 'attitude'.

3

他深知,唯有刻苦,方能成就大业。

He knew deeply that only through hard work can great things be achieved.

Literary '唯有...方能...'.

4

他在艺术领域刻苦耕耘了数十年。

He has been working assiduously in the field of art for decades.

Metaphorical use of '耕耘' (plowing/cultivating).

5

刻苦固然重要,但方法同样不可或缺。

Hard work is certainly important, but method is equally indispensable.

'固然...但...' (certainly... but...).

6

他那种刻苦自律的生活方式让很多人望尘莫及。

His assiduous and self-disciplined lifestyle leaves many people far behind.

Idiom '望尘莫及' (too far behind to catch up).

7

在这部著作中,作者展现了刻苦严谨的治学精神。

In this work, the author demonstrates an assiduous and rigorous spirit of scholarship.

Formal '治学' (scholarship/study).

8

他凭着刻苦的精神,在逆境中开辟了一片天地。

With a spirit of hard work, he carved out a world for himself in adversity.

Metaphorical '开辟了一片天地'.

1

此番成功,端赖其平日刻苦之功,非偶然也。

This success depends entirely on his usual assiduous effort; it is no accident.

Classical Chinese style (Wenyanmi).

2

其刻苦钻研之深,已臻化境。

The depth of his assiduous research has reached a state of perfection.

Idiom '臻于化境' (reach perfection).

3

即便在物欲横流的时代,刻苦仍是通往卓越的必经之路。

Even in an era of rampant materialism, hard work remains the necessary path to excellence.

Complex social commentary.

4

他以刻苦为舟,在知识的海洋中破浪前行。

Using hard work as a boat, he breaks the waves in the ocean of knowledge.

Extended metaphor.

5

这种刻苦并非出于被迫,而是源于内心的热爱。

This assiduousness is not out of compulsion, but stems from inner passion.

Philosophical distinction.

6

他那刻苦不辍的努力,终将汇聚成改变命运的力量。

His unceasing assiduous efforts will eventually converge into a force that changes destiny.

High-level literary '不辍' (unceasing).

7

纵观古今,凡成大事者,无不具备刻苦之品质。

Looking throughout history, all who achieved great things possessed the quality of hard work.

Double negative '无不' for emphasis.

8

刻苦是对自我的不断超越与重塑。

Hard work is the constant transcendence and reshaping of oneself.

Abstract philosophical definition.

Common Collocations

刻苦学习
刻苦训练
刻苦钻研
刻苦耐劳
刻苦努力
刻苦奋斗
刻苦攻读
刻苦自励
刻苦磨炼
表现刻苦

Common Phrases

刻苦精神

— A spirit of hard work and endurance.

这种刻苦精神值得发扬。

刻苦钻研

— To study or research with great intensity.

他刻苦钻研数学难题。

刻苦练习

— To practice assiduously (e.g., an instrument).

她每天刻苦练习小提琴。

刻苦工作

— To work painstakingly.

他在实验室里刻苦工作。

刻苦攻关

— To work hard to overcome a key technical problem.

科研团队正在刻苦攻关。

刻苦用功

— To be very diligent in studies.

他是个刻苦用功的好学生。

刻苦俭朴

— Hardworking and frugal.

他过着刻苦俭朴的生活。

刻苦自学

— To teach oneself through hard work.

他通过刻苦自学掌握了外语。

刻苦创优

— To work hard to achieve excellence.

全校师生都在刻苦创优。

刻苦坚韧

— Hardworking and tenacious.

他有着刻苦坚韧的性格。

Often Confused With

刻苦 vs 努力

努力 is more general; 刻苦 implies more hardship and discipline.

刻苦 vs 辛苦

辛苦 describes the difficulty of the task; 刻苦 describes the person's attitude.

刻苦 vs 勤奋

勤奋 emphasizes doing things often/regularly; 刻苦 emphasizes enduring the struggle.

Idioms & Expressions

"刻苦耐劳"

— Hardworking and able to endure hardship.

中国工人以刻苦耐劳闻名。

Common
"勤学苦练"

— To study diligently and train hard.

想要写好书法,必须勤学苦练。

Common
"废寝忘食"

— To forget to eat and sleep due to hard work.

他为了完成报告,简直到了废寝忘食的地步。

Literary
"孜孜不倦"

— Working with tireless enthusiasm.

他在学术研究上孜孜不倦。

Formal
"悬梁刺股"

— To study with extreme determination (historic reference).

我们要学习古人悬梁刺股的刻苦精神。

Historical
"凿壁偷光"

— To study hard despite poverty (literal: boring a hole in the wall to steal light).

凿壁偷光的典故激励了无数刻苦的学生。

Historical
"闻鸡起舞"

— To start working/practicing at the crack of dawn.

他每天闻鸡起舞,刻苦练功。

Literary
"磨杵成针"

— Persistence will lead to success (grinding an iron bar into a needle).

只要有磨杵成针的刻苦劲头,什么都能学会。

Metaphorical
"十年磨一剑"

— To spend a decade sharpening a sword (long-term assiduous work).

他的这部作品真是十年磨一剑。

Literary
"卧薪尝胆"

— To endure hardships and nurse one's ambition.

他卧薪尝胆,最终实现了复仇大计。

Historical

Easily Confused

刻苦 vs 刻度

Same first character '刻'.

刻度 means 'scale' or 'graduation' on a measuring tool. It has nothing to do with hard work.

尺子上的刻度很清晰。

刻苦 vs 痛苦

Same second character '苦'.

痛苦 means 'pain' or 'suffering' (emotional or physical). 刻苦 is a positive trait; 痛苦 is a negative state.

他感到非常痛苦。

刻苦 vs 苛刻

Same first character '刻'.

苛刻 means 'harsh' or 'demanding' (often used for rules or people). It is usually negative.

老板的要求很苛刻。

刻苦 vs 勤恳

Similar meaning.

勤恳 means 'diligent and conscientious.' It implies being steady and reliable, often in a humble way.

他工作勤勤恳恳。

刻苦 vs 艰苦

Similar meaning and same second character.

艰苦 describes an objective environment that is 'difficult/tough.' 刻苦 describes the subjective effort.

那里的生活条件很艰苦。

Sentence Patterns

A1

S + 很 + 刻苦

他很刻苦。

A2

S + 刻苦 + 地 + V

他刻苦地学习。

B1

只有 + 刻苦 + 才能 + V

只有刻苦才能成功。

B1

S + 有 + 刻苦的 + N

他有刻苦的精神。

B2

S + 以 + 刻苦 + 著称

他以刻苦著称。

B2

凭着 + 刻苦的 + N...

凭着刻苦的精神,他成功了。

C1

V + 得 + 十分 + 刻苦

他钻研得十分刻苦。

C2

凡...无不...刻苦

凡成大事者,无不刻苦。

Word Family

Nouns

刻苦精神 (spirit of hard work)
苦功 (painstaking effort)

Verbs

钻研 (to delve into)
奋斗 (to struggle/strive)

Adjectives

勤奋 (diligent)
努力 (hardworking)

Related

吃苦 (to endure hardship)
辛苦 (laborious)
劳累 (tired)
坚韧 (tenacious)
毅力 (willpower)

How to Use It

frequency

High in educational and motivational contexts.

Common Mistakes
  • Using 刻苦 for short-term effort. 努力

    刻苦 requires time and sustained discipline.

  • Saying '工作很刻苦' when you mean 'tiring'. 工作很辛苦

    辛苦 is the physical feeling; 刻苦 is the mental attitude.

  • Writing '该苦' instead of '刻苦'. 刻苦

    The left side of 刻 is similar to the left of 该, but they are different characters.

  • Using 刻苦 to describe a fun hobby. 投入 / 喜欢

    刻苦 implies there is some 'bitterness' or difficulty involved. If it's pure fun, it's not 刻苦.

  • Forgetting the '地' in formal adverbial use. 刻苦地钻研

    In formal writing, the adverbial particle is usually required.

Tips

Pair with 钻研

If you want to sound like a scholar, use the phrase '刻苦钻研' (painstakingly research). It's a very common high-level collocation.

The Bitterness Factor

Remember that '苦' (bitter) is a good thing in Chinese culture. It represents the fertilizer for success. Don't be afraid to use 刻苦 to describe someone in a tough situation.

Adverbial Marker

While '刻苦学习' is common, in more formal writing, use '刻苦地' before verbs that aren't 学习 or 训练.

Tone Accuracy

Make sure the 4th tone on 'kè' is sharp. If you say it with a 2nd tone, it might sound like 'shell' (壳).

Four-Character Idioms

Learn '刻苦耐劳' as a single block. It's a standard way to describe a reliable, hardworking person.

Stroke Order

The character '刻' has many strokes. Practice writing it to ensure the 'knife' radical doesn't look like part of the left side.

Context Clues

If you hear 'kè' and then 'xuéxí,' it's almost certainly 刻苦.

Complimenting

When you see a friend studying hard, say '你真刻苦!' It's much more meaningful than just '你很努力.'

Newspaper Themes

In Chinese newspapers, 刻苦 is often used in stories about poverty alleviation or technological breakthroughs.

The 'K' Sound

Both syllables start with 'K'. Think of 'Keep Kicking' against the 'Ku' (bitterness).

Memorize It

Mnemonic

Think of a carver (刻) working on a very hard, bitter (苦) piece of wood all night long. He is 'carving through the bitterness' to make something beautiful.

Visual Association

Imagine a student studying by a tiny candle light in a cold room, or an athlete training in the rain. This is the essence of 刻苦.

Word Web

学习 训练 成功 汗水 深夜 坚持 意志 目标

Challenge

Try to spend one hour today being truly '刻苦' on your Chinese studies—no phone, no distractions, just deep focus.

Word Origin

The term dates back to ancient Chinese texts. '刻' (kè) originally meant to carve or engrave on wood or stone, requiring precision and force. '苦' (kǔ) originally referred to a bitter herb, later evolving to mean hardship.

Original meaning: To endure hardship with the precision and permanence of a carver.

Sino-Tibetan / Sinitic

Cultural Context

Be careful not to use it in a way that implies someone is 'suffering' in a negative sense; it is almost always a positive attribute.

The closest English equivalent is 'grit' or 'assiduousness,' though 'hardworking' is the most common translation.

The story of Kuang Heng (凿壁偷光) - boring a hole in the wall to study by the neighbor's light. The 'Iron Man' Wang Jinxi, a model worker in the oil fields known for his 刻苦 spirit. The phrase '书山有路勤为径' (The mountain of books has a path, and diligence is the trail).

Practice in Real Life

Real-World Contexts

Classroom

  • 刻苦学习
  • 用功读书
  • 考好成绩
  • 向他学习

Sports Field

  • 刻苦训练
  • 磨炼意志
  • 争夺冠军
  • 流汗流泪

Office

  • 刻苦钻研
  • 业务能力
  • 加班加点
  • 表现出色

Home

  • 听话刻苦
  • 望子成龙
  • 将来有出息
  • 少玩游戏

Biography

  • 白手起家
  • 刻苦奋斗
  • 改变命运
  • 功成名就

Conversation Starters

"你觉得刻苦和天分哪个更重要? (Do you think hard work or talent is more important?)"

"你在学习中文的过程中,最刻苦的时候是什么样子的? (What was it like during the time you studied Chinese most assiduously?)"

"你身边有特别刻苦的人吗? (Is there someone particularly hardworking around you?)"

"为了实现你的梦想,你愿意多么刻苦? (How hard are you willing to work to achieve your dream?)"

"在中国,人们为什么这么看重刻苦? (In China, why do people value hard work so much?)"

Journal Prompts

写一写你曾经通过刻苦努力完成的一件事。 (Write about something you once accomplished through assiduous effort.)

你认为现代社会的‘刻苦’和古代有什么不同? (What do you think is the difference between 'hard work' in modern society versus ancient times?)

描述一个你认为非常刻苦的人,他/她做了什么让你感动? (Describe a person you think is very hardworking; what did they do that moved you?)

如果一个人非常刻苦但没有成功,你会有什么看法? (If someone is very hardworking but doesn't succeed, what is your view?)

反思一下:你目前在哪些方面还不够刻苦?该如何改进? (Reflect: In what areas are you not hardworking enough yet? How can you improve?)

Frequently Asked Questions

10 questions

Yes, in 99% of cases, 刻苦 is a highly positive word used to praise someone's dedication and character. It is only negative if you think someone is working *too* hard and neglecting their health, but even then, the word itself remains commendatory.

No, it's better to use 努力. 刻苦 implies a sustained, long-term effort. You wouldn't say you were '刻苦' for five minutes.

勤奋 (qínfèn) is more about being 'busy and careful' (diligent), while 刻苦 (kèkǔ) is about 'eating bitterness' (enduring hardship). You can be 勤奋 in a comfortable office, but 刻苦 usually implies some level of struggle.

No, it is an adjective. However, it can function as an adverb when it modifies a verb (like in '刻苦学习').

It has a '亥' on the left and a '刂' (knife radical) on the right. Think of 'cutting' into your studies.

Yes, it is very common in spoken Chinese, especially when parents talk to children or teachers talk to students.

It's a metaphor. Just as a carver must apply steady, forceful pressure to change a hard material, a 刻苦 person applies steady will to overcome difficult circumstances.

A modern slang term is '卷' (juǎn), which refers to intense competition where everyone is working extremely hard (often too hard).

No, 刻苦 is only used for humans because it describes a mental and moral quality.

懒惰 (lǎnduò - lazy) or 懈怠 (xièdài - slack).

Test Yourself 200 questions

writing

用'刻苦'写一个句子,描述一个学生。

Well written! Good try! Check the sample answer below.

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writing

用'刻苦训练'写一个关于运动员的句子。

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writing

解释为什么'刻苦'在学习中很重要。

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writing

用'刻苦钻研'造句,描述一个科学家。

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writing

写一段话赞美一个你认为很刻苦的人。

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writing

对比'刻苦'和'聪明',你觉得哪个对成功更重要?

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writing

用'刻苦耐劳'描述一个人的品质。

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writing

用'刻苦'写一个关于你学习中文的句子。

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writing

描述一个你见过的刻苦的场景。

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writing

用'刻苦奋斗'写一个关于创业的句子。

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writing

写出'刻苦'的三个近义词。

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writing

用'刻苦'给你的朋友写一句鼓励的话。

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writing

解释'刻苦'中两个字的意思。

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writing

用'表现刻苦'造句。

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writing

描述一个不刻苦的人会有什么结果。

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writing

写一个含有'刻苦'的四字成语并造句。

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writing

用'刻苦'写一个关于克服困难的句子。

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writing

谈谈你对'刻苦'这种价值观的看法。

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writing

用'刻苦'描述一个人的生活态度。

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writing

用'刻苦'写一封简短的表扬信。

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speaking

请大声朗读:他学习非常刻苦。

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speaking

描述一个你认为刻苦的人(口头)。

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speaking

说出'刻苦学习'的拼音。

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speaking

用'刻苦'造一个关于运动员的句子。

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speaking

谈谈你对'刻苦'的理解。

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speaking

如果一个同学不刻苦,你会怎么劝他?

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speaking

请朗读并翻译:只有刻苦,才能成功。

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speaking

你认为刻苦工作会让人感到快乐吗?为什么?

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speaking

用'刻苦'和'精神'造一个句子。

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speaking

模仿老师的口吻说:'同学们,大家要刻苦学习!'

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speaking

说出'刻苦'的两个反义词。

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speaking

用'刻苦'描述你自己的学习状态。

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speaking

朗读短语:刻苦钻研,勇攀高峰。

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speaking

你觉得刻苦和运气哪个更重要?

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speaking

用'刻苦'和'终于'造句。

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speaking

描述一下'刻苦'的人通常会有什么样的行为。

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speaking

请大声朗读:刻苦耐劳是中华民族的传统美德。

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speaking

用'刻苦'谈论你的一个梦想。

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speaking

如果你是老板,你会喜欢刻苦的员工吗?

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speaking

说出一个关于刻苦的成语。

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listening

听句子:'他学习一直很刻苦。' 这里的'刻苦'是什么意思?

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listening

听短语:'刻苦训练'。通常形容谁?

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listening

听句子:'只有刻苦,才能成功。' 这是一个什么样的句子结构?

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listening

听对话:'A: 他考上大学了吗? B: 考上了,他平时学习可刻苦了。' B的意思是什么?

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listening

听单词:'kè kǔ'。请写出这两个汉字。

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listening

听短语:'刻苦钻研'。这个短语常用于什么领域?

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listening

听句子:'他那刻苦的精神令人钦佩。' 说话人的态度是怎样的?

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listening

听句子:'你要刻苦一点,别总想着玩。' 这是一个什么样的语气?

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listening

听单词:'kè kǔ nài láo'。请写出这个成语。

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listening

听句子:'虽然他很刻苦,但方法不对。' 句子表达了什么转折?

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listening

听短语:'表现刻苦'。这通常出现在什么样的报告中?

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listening

听句子:'刻苦是通往成功的必经之路。' 这里的'必经之路'是什么意思?

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listening

听单词:'勤奋'和'刻苦'。它们是近义词还是反义词?

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listening

听句子:'他通过刻苦经营,生意越来越好。' 他是怎么做生意的?

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listening

听句子:'这孩子从小就刻苦。' 这句话描述的是什么时间段?

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/ 200 correct

Perfect score!

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