At the A1 level, you can think of '우연하다' as a way to say 'by chance.' You don't need to worry about complex grammar yet. Just remember that it describes things that weren't planned. For example, if you see a friend at the supermarket and you didn't plan to meet them, that is '우연한 만남' (a chance meeting). You might use the adverb '우연히' more often at this stage, like '우연히 만났어요' (I met them by chance). It's a useful word for telling simple stories about your day and the little surprises that happen. Focus on the idea that there was 'no plan.' If you planned it, don't use this word! At this level, just knowing that it means 'not planned' is enough to start using it in basic sentences about meeting people or finding things.
At the A2 level, you should start using the adjective form '우연하다' to describe situations. You can use it in the modifier form '우연한' to talk about '우연한 기회' (a chance opportunity) or '우연한 일' (a coincidental matter). You are learning how to describe your experiences in more detail, and this word helps you explain why things happened. Instead of just saying 'I met a friend,' you can say 'It was a chance meeting.' This adds more flavor to your speaking. You should also be able to conjugate it into the polite form '우연해요' or the past tense '우연했어요.' Remember that this word is usually for positive or neutral coincidences. If something bad happens like an accident, Koreans usually use different words. Practice using '우연한' before nouns to describe the nature of events in your life.
At the B1 level, you can use '우연하다' to discuss more abstract concepts and give reasons for things. You might use it in a presentation or a longer story to explain how a series of events led to a certain outcome. For example, '우연한 기회에 한국어를 배우게 되었습니다' (I started learning Korean through a chance opportunity). You can also start comparing '우연' (chance) with '계획' (plan). You should be comfortable using connective endings like '-아서/어서' or '-니까' with this adjective. For instance, '그 만남이 너무 우연해서 놀랐어요' (I was surprised because that meeting was so coincidental). At this level, you are moving beyond simple descriptions and starting to explain the logic (or lack thereof) behind the events in your life, and '우연하다' is a key tool for that.
At the B2 level, you should understand the nuance between '우연하다' and its synonyms like '뜻밖이다' or '갑작스럽다.' You can use '우연하다' in more formal writing, such as essays or reports, to describe variables or historical events. You might discuss the '우연한 발견' (accidental discovery) of a scientific principle. You should also be familiar with the noun form '우연' and how it is used in common idioms like '우연의 일치' (a coincidence of chance). Your usage should be precise—knowing that '우연하다' implies a lack of intent. You can also use the more advanced adverbial form '우연하게도' to add narrative tension to your stories. At this stage, you are expected to use the word to discuss the role of luck and chance in success or historical progress, showing a deeper understanding of the word's philosophical weight.
At the C1 level, you can explore the philosophical and literary implications of '우연하다.' You might analyze a novel and discuss how '우연한 사건' (accidental incidents) drive the plot or reflect the author's worldview. You should be able to contrast '우연' (chance) with '필연' (inevitability) in a sophisticated debate. You might use phrases like '우연의 산물' (a product of chance) to describe complex social phenomena. Your vocabulary should also include high-level synonyms like '공교롭다' and '우발적이다,' and you should know exactly when each is appropriate. You can use '우연하다' to discuss probability in a technical sense or to critique the idea of destiny. At this level, the word is no longer just about meeting a friend; it's about the fundamental nature of reality and how we interpret the world around us.
At the C2 level, you have a native-like grasp of '우연하다' and can use it with absolute precision in any context, from high-level academic discourse to poetic literature. You understand the subtle cultural connotations of '우연' in relation to the Buddhist-influenced concept of '인연' (fate). You can use the word to discuss complex theories of chaos, quantum mechanics, or historical contingency. You are aware of how the word has been used in classic Korean literature and can use it to create specific rhetorical effects in your own writing. Whether you are writing a legal brief where the '우연성' (randomness/accidental nature) of an event is at issue, or a poem about the beauty of a chance encounter, you use '우연하다' and its derivatives with effortless accuracy and stylistic flair. You can even use it ironically or metaphorically to challenge conventional thinking.

우연하다 in 30 Seconds

  • 우연하다 means 'to be accidental' or 'to happen by chance,' describing unplanned events.
  • It is commonly used as a modifier (우연한) or adverb (우연히) rather than just a predicate.
  • The word carries a sense of surprise and serendipity, often used for meetings and discoveries.
  • It is the opposite of 'intentional' or 'planned,' and is a key concept in Korean storytelling.

The Korean adjective 우연하다 (u-yeon-ha-da) describes events, encounters, or situations that happen by chance, without any prior planning, intention, or predictable cause. In English, we often translate this as 'to be accidental,' 'to be coincidental,' or 'to be a matter of chance.' While it is a simple adjective, its usage carries a sense of wonder or surprise, as if the universe conspired to bring two elements together without human intervention. It is most frequently encountered in its modifier form, 우연한 (an accidental...), or its adverbial form, 우연히 (by chance), though the adjective form itself is essential for describing the nature of an occurrence.

Core Concept
The absence of intent. If you planned to meet a friend at 2 PM, it is not 우연하다. If you walked into a cafe in a foreign city and saw that same friend, the meeting is 우연하다.

In Korean culture, the concept of 'Inyeon' (인연), or fate/destiny, is often linked with 'Uyeon' (우연). People often wonder if a chance meeting (우연한 만남) is actually a manifestation of a deeper karmic connection. Therefore, when someone says a situation is '우연하다,' they might be implying that the event felt special or statistically unlikely. It is a word that bridges the gap between cold statistics and warm, human serendipity. You will hear it in romantic dramas when protagonists meet, in scientific contexts describing accidental discoveries, and in daily conversation when recounting the strange twists of your day.

우리가 여기서 만난 것은 정말 우연하다.

Translation: It is truly accidental/coincidental that we met here.

The word is composed of two Hanja characters: 偶 (우), meaning 'even number' or 'pair' (implying things matching up), and 然 (연), meaning 'to be so' or 'state of being.' Together, they create a picture of things 'matching up' without effort. This linguistic root suggests that the 'accident' isn't just a random error, but a harmonious alignment of circumstances. In academic writing, '우연하다' is used to describe variables that occur without correlation, while in literature, it serves as a plot device to move stories forward through '우연한 사고' (accidental incidents).

Common Contexts
1. Meeting an old friend on the street. 2. Discovering a hidden gem of a restaurant while lost. 3. Winning a prize in a random drawing. 4. Two people wearing the exact same outfit at a party.

이 모든 상황이 단순히 우연한 일일까요?

Translation: Could all these situations simply be a coincidental matter?

Understanding the nuance of '우연하다' also requires knowing what it is NOT. It is not '갑작스럽다' (to be sudden), which focuses on the speed of an event. It is not '뜻밖이다' (to be unexpected), which focuses on the listener's surprise. '우연하다' focuses strictly on the lack of a plan. If a storm hits suddenly, it is '갑작스럽다'. if you find a diamond in your backyard while digging for a garden, that is '우연하다'. This distinction is vital for intermediate learners to sound more natural and precise in their descriptions of life's many surprises.

Using 우연하다 correctly requires an understanding of Korean adjective conjugation and how adjectives function as nouns modifiers. Because '우연하다' describes a state, it follows the standard rules for '-하다' adjectives. However, its most powerful form is often the noun-modifying form, 우연한, which allows you to attach the quality of 'accidentality' directly to a noun. For example, '우연한 기회' (an accidental opportunity) or '우연한 발견' (an accidental discovery). This structure is ubiquitous in both formal reports and casual storytelling.

Sentence Structure: Modifier
[Modifier Form] + [Noun] + [Verb/Adjective]. Example: 우연한 만남이 인연이 되었다. (A chance meeting became a lasting connection.)

When using it as a predicate (at the end of a sentence), you must decide on the level of formality. In polite casual speech, it becomes 우연해요. In formal settings, it is 우연합니다. In the past tense, which is very common when talking about things that already happened, you use 우연했어요 or 우연했습니다. For example, '그 일은 정말 우연했어요' (That matter was truly accidental). Notice how the subject of the sentence is usually an event, a meeting, or a situation, rather than a person. You wouldn't typically say 'I am accidental,' but rather 'My meeting with him was accidental.'

그의 성공은 결코 우연한 것이 아니었습니다.

Translation: His success was by no means an accidental thing.

Another important grammatical point is the use of '우연하다' with the particle '-게'. While '우연히' is the standard adverb, '우연하게' is also used to emphasize the manner in which something happened. '우연하게도' (coincidentally enough) is a common phrase used to introduce a surprising fact. For instance, '우연하게도 우리는 같은 고향 출신이었다' (Coincidentally enough, we were from the same hometown). This adds a layer of narrative flair to your Korean, making you sound more like a native speaker who is engaging their audience.

In more complex sentences, '우연하다' can be combined with connective endings like '-아서/어서' (because) or '-지만' (but). For example, '상황이 너무 우연해서 믿기 어려웠다' (The situation was so coincidental that it was hard to believe). Or, '우연한 기회였지만 놓치고 싶지 않았다' (It was a chance opportunity, but I didn't want to miss it). These structures allow you to express the cause-and-effect relationships surrounding accidental events. Mastering these will help you move from simple A2 sentences to more complex B1/B2 level discourse.

Predicate Usage
Subject + 가/이 + 우연하다. Example: 이 만남이 우연할까요? (Could this meeting be accidental?)

과학적 발견 중에는 우연한 경우가 많습니다.

Translation: Among scientific discoveries, there are many accidental cases.

If you are a fan of K-Dramas, you will hear the word 우연하다 (or its variants) in almost every episode. The entire 'fate' trope in Korean storytelling relies on the idea of '우연한 만남' (accidental meetings). Characters might bump into each other in a rainy street, or find out they lived in the same neighborhood as children. When they discuss these events later, they often say, '그건 그냥 우연이었을까?' (Was that just a coincidence?). This word captures the magical, unplanned nature of these plot points that Korean audiences find so romantic and compelling.

In Media
News reports often use '우연한 발견' when talking about archaeological finds or citizens finding lost treasure. Reality shows use '우연하게도' when two guests realize they have a mutual friend.

In the workplace, the word takes on a slightly more professional tone. You might hear a manager say, '우연한 기회로 새로운 거래처를 알게 되었습니다' (I came to know a new client through a chance opportunity). Here, it implies that while it wasn't a planned marketing effort, the result was beneficial. It’s a way of showing humility—suggesting that success wasn't just due to one's own brilliance, but also due to favorable circumstances. This aligns with the Korean cultural value of modesty and acknowledging external factors in one's achievements.

저희가 오늘 같은 옷을 입은 건 정말 우연한 일이에요!

Translation: It's a total coincidence that we're wearing the same clothes today!

Social media is another place where this word flourishes. You might see a caption like '우연히 들른 카페가 너무 예쁘다' (The cafe I stopped by by chance is so pretty). While that uses the adverb, the sentiment is the same—the beauty of the unplanned. On YouTube vlogs, creators often talk about '우연한 여행' (an unplanned/accidental trip) where they just hopped on a train without a destination. It conveys a sense of freedom and spontaneity that resonates with younger generations in Korea who are looking for breaks from their highly structured daily lives.

Finally, you will hear this word in reflective or philosophical contexts. In talk shows or interviews, celebrities might reflect on their careers, saying '우연한 계기로 배우가 되었습니다' (I became an actor through a chance motive/opportunity). This use of '우연한 계기' is a standard way to describe a life-changing moment that wasn't originally intended. It shows how the word is used to narrate one's life story, framing random events as pivotal turning points. By learning this word, you gain the ability to tell your own story in Korean with the same level of nuance and reflection.

Daily Phrases
'우연의 일치' (A coincidence of chance), '우연하게' (Coincidentally), '우연히도' (By chance as well).

이것은 단순한 우연이 아닙니다.

Translation: This is not a simple coincidence. (Commonly said in mystery movies or dramas)

One of the most common mistakes learners make with 우연하다 is confusing it with words that describe 'accidents' in a negative sense, such as car crashes or injuries. In English, 'accidental' can mean 'not on purpose' (like an accidental spill), but in Korean, '우연하다' is almost never used for physical mishaps. For those, you would use 우발적이다 (accidental/impulsive) or simply say it was a 실수 (mistake). Using '우연한 사고' for a car crash sounds very strange; it sounds like the crash was a 'chance encounter' rather than a collision. Use 교통사고 (traffic accident) instead.

Mistake: Negative Accidents
Incorrect: 우연한 사고로 다쳤어요. (I got hurt in a 'chance' accident.) Correct: 사고로 다쳤어요. (I got hurt in an accident.)

Another frequent error is the over-reliance on the dictionary form '우연하다' when the adverb '우연히' is required. In English, we often use the adjective 'accidental' as an adverb ('I accidentally saw him'). In Korean, you must use the adverbial form for this. If you say '그를 우연하게 봤어요,' it's okay, but '그를 우연히 봤어요' is much more natural. Beginners often try to conjugate '우연하다' into every sentence, but remember that '우연히' acts as the workhorse for most daily actions that happen by chance.

우연히 우연한 만남을 가졌어요. (Awkward redundancy)

Explanation: Avoid using the adverb and the adjective together. Just say '우연히 만났어요' (I met them by chance).

Confusing '우연하다' with 뜻밖이다 is also common. While they overlap, '뜻밖이다' specifically focuses on the feeling of surprise or being 'beyond expectation.' If you receive a gift you didn't expect, it is '뜻밖의 선물.' If you find a gift on the street that was meant for someone else, that discovery is '우연한 발견.' One is about the surprise of the recipient, the other is about the lack of a plan in the event's occurrence. Misusing these can lead to subtle misunderstandings about your emotional reaction to an event.

Lastly, learners sometimes forget that '우연' (the noun) and '우연하다' (the adjective) are used differently. You can say '그것은 우연이다' (That is a coincidence), but you cannot say '그것은 우연한이다.' You must use the full adjective form '우연하다' or the modifier '우연한 것.' This is a basic grammar point that often gets lost when students try to translate directly from the English noun 'coincidence.' Keep the parts of speech clear in your mind to avoid these clunky grammatical errors.

Mistake: Parts of Speech
Incorrect: 이건 정말 우연한이야. (This is really accidental-is.) Correct: 이건 정말 우연이야. (This is really a coincidence.) OR 이건 정말 우연한 일이야. (This is really an accidental matter.)

그의 말은 우연하게 들렸다. (Sounds like: His words were heard by chance.)

Note: If you meant 'He happened to say it,' use '우연히 말했다.'

To truly master 우연하다, you should know the words that live in its neighborhood. The most common alternative is 뜻밖이다 (unexpected). While '우연하다' focuses on the lack of a plan, '뜻밖이다' focuses on the surprise. If you pass an exam you didn't study for, it's '뜻밖의 결과' (unexpected result). If you find the answers to the exam on the floor by chance, that's '우연한 발견' (accidental discovery). Knowing when to switch between 'chance' and 'surprise' will make your Korean much more expressive.

우연하다 vs. 뜻밖이다
우연하다: No plan, chance-based. 뜻밖이다: Unexpected, surprise-based. Example: 우연한 만남 (A chance meeting) vs. 뜻밖의 선물 (An unexpected gift).

Another similar word is 갑작스럽다 (sudden). This word is all about timing. Something '갑작스럽다' happens quickly and without warning. While many accidental things are also sudden, the focus is different. An 'accidental' meeting might have been slow—you both happened to be walking slowly in the same direction. A 'sudden' meeting implies speed and lack of preparation. If a friend calls you out of the blue, it's a '갑작스러운 전화.' If you both happen to call each other at the exact same second, that's '우연한 일' (a coincidental matter).

그 일은 공교롭게도 같은 날에 일어났다.

Note: '공교롭다' is a high-level synonym meaning 'coincidentally/ironically enough.'

For more advanced learners, 공교롭다 (gong-gyo-rop-da) is a fantastic word to use. It means 'to be coincidental' but often with a touch of irony or 'just my luck' (either good or bad). If you finally decide to skip school and that's the day the principal visits your class, you would say '공교롭게도 교장 선생님이 오셨다.' It's a more nuanced version of '우연하다' that implies a strange or ironic timing. Using this word will immediately signal to native speakers that you have a high level of linguistic sophistication.

On the opposite side, we have 필연적이다 (inevitable/necessary) and 의도적이다 (intentional). '필연적이다' is the philosophical antonym—something that had to happen. '의도적이다' is the practical antonym—something done on purpose. If you want to emphasize that something was NOT an accident, you would say '그것은 의도적인 행동이었다' (That was an intentional act). In Korean debates or essays, contrasting '우연' with '필연' is a classic way to discuss causality and fate.

Antonym Comparison
우연 (Chance) vs. 필연 (Inevitability). 계획 (Plan) vs. 우연 (Accident). 의도 (Intent) vs. 우연 (Coincidence).

이것은 의도적인 것이 아니라 순전히 우연한 결과입니다.

Translation: This is not an intentional thing, but purely an accidental result.

How Formal Is It?

Fun Fact

The character '偶' (우) also means 'pair' or 'mate.' It suggests that two things that were separate have suddenly found their match, creating a 'coincidence.'

Pronunciation Guide

UK /u.jʌn.ɦa.da/
US /u.jʌn.hɑ.dɑ/
Stress is even across all syllables in Korean, but a slight emphasis on 'yeon' is natural.
Rhymes With
당연하다 (dang-yeon-hada) 유연하다 (yu-yeon-hada) 강연하다 (gang-yeon-hada) 평연하다 (pyeong-yeon-hada) 태연하다 (tae-yeon-hada) 의연하다 (ui-yeon-hada) 초연하다 (cho-yeon-hada) 연연하다 (yeon-yeon-hada)
Common Errors
  • Pronouncing 'yeon' like 'yon' (missing the 'e' sound).
  • Stressing the first syllable too heavily like English.
  • Making the 'h' in 'hada' too silent.
  • Confusing the vowel 'eo' (ㅓ) in 'yeon' with 'o' (ㅗ).
  • Not connecting the syllables smoothly.

Difficulty Rating

Reading 2/5

The Hanja characters are common and the word appears frequently in texts.

Writing 3/5

Requires understanding the difference between modifier and adverb forms.

Speaking 2/5

Easy to pronounce and very useful for storytelling.

Listening 2/5

Distinct sound, usually clear in context.

What to Learn Next

Prerequisites

만나다 (to meet) 일 (work/matter) 기회 (opportunity) 생각하다 (to think) 갑자기 (suddenly)

Learn Next

필연적이다 (inevitable) 의도적이다 (intentional) 공교롭다 (coincidental/ironic) 인연 (fate) 계획 (plan)

Advanced

개연성 (probability) 우발성 (contingency) 필연성 (necessity) 상관관계 (correlation)

Grammar to Know

Adjective to Adverb (-히/-하게)

우연하다 -> 우연히 / 우연하게

Noun Modifying Form (-ㄴ/은)

우연하다 -> 우연한 (만남)

Connective ending -아서/어서 (Reason)

만남이 우연해서 더 반가웠어요.

Pattern -라고 하기엔 (To call it...)

우연이라고 하기엔 너무 자주 만나요.

Indirect Discourse -다고 생각하다

모든 것이 우연하다고 생각해요.

Examples by Level

1

우연히 친구를 만났어요.

I met a friend by chance.

Uses the adverbial form '우연히'.

2

그것은 우연한 일이었어요.

That was an accidental matter.

Modifier '우연한' + noun '일'.

3

우리는 우연히 같은 옷을 입었어요.

We wore the same clothes by chance.

Adverbial usage.

4

이 만남은 정말 우연해요.

This meeting is really accidental.

Polite present tense.

5

우연한 기회로 한국에 왔어요.

I came to Korea through a chance opportunity.

Modifier form.

6

길에서 우연히 돈을 주웠어요.

I picked up money on the street by chance.

Adverbial usage.

7

우연한 발견이었어요.

It was an accidental discovery.

Noun phrase.

8

그 일은 정말 우연했어요.

That matter was truly accidental.

Past tense.

1

어제 공원에서 우연한 만남이 있었어요.

There was a chance meeting in the park yesterday.

Modifier form '우연한'.

2

이것은 단순한 우연일까요?

Is this a simple coincidence?

Noun '우연' + question ending.

3

우연하게도 우리는 같은 식당에 갔어요.

Coincidentally enough, we went to the same restaurant.

Adverbial phrase '우연하게도'.

4

우연한 사고가 발생했습니다.

An accidental incident occurred.

Formal sentence.

5

그의 방문은 정말 우연했어요.

His visit was really accidental/unplanned.

Adjective predicate.

6

우연한 기회를 놓치지 마세요.

Don't miss a chance opportunity.

Imperative sentence.

7

우연히 들은 노래가 너무 좋아요.

The song I heard by chance is so good.

Relative clause with '우연히'.

8

우연한 일치가 신기해요.

The coincidental match is fascinating.

Subject + adjective.

1

우연한 계기로 이 일을 시작하게 되었습니다.

I started this work through a chance motive/opportunity.

Common phrase '우연한 계기'.

2

모든 것이 우연하다고 생각하지 않아요.

I don't think everything is accidental.

Indirect quotation with '생각하다'.

3

우연한 만남이 때로는 인생을 바꿉니다.

A chance meeting sometimes changes a life.

General truth statement.

4

그 두 사건이 우연하게 연결되었습니다.

Those two events were coincidentally connected.

Passive-like construction.

5

우연한 일로 친구와 서먹해졌어요.

Due to a chance matter, things became awkward with my friend.

Cause and effect.

6

그 발견은 순전히 우연한 것이었습니다.

That discovery was purely an accidental thing.

Emphasis with '순전히'.

7

우연한 상황에서도 침착함을 유지하세요.

Maintain your composure even in accidental situations.

Use of '에서도'.

8

우연한 일치라고 하기엔 너무 정확해요.

It's too accurate to call it a coincidental match.

Pattern '-라고 하기엔'.

1

역사적인 대발견은 종종 우연한 기회에 이루어집니다.

Great historical discoveries are often made through chance opportunities.

Formal academic tone.

2

이것이 우연한 일인지 아니면 계획된 것인지 모르겠습니다.

I don't know if this is an accidental matter or something planned.

Comparison structure '-인지 -인지'.

3

우연한 마주침이 우리 사이를 다시 가깝게 만들었다.

A chance encounter made our relationship close again.

Causative-like meaning.

4

그의 성공은 우연한 행운이 아니라 노력의 결과였다.

His success was not accidental luck, but the result of effort.

Contrast 'A가 아니라 B'.

5

우연하게 발생한 오류가 새로운 기술의 힌트가 되었다.

An error that occurred by chance became a hint for new technology.

Relative clause.

6

우연한 일들이 겹치면서 상황이 복잡해졌다.

As accidental matters overlapped, the situation became complex.

Connective '-면서'.

7

그 영화의 결말은 너무 우연해서 현실성이 떨어진다.

The ending of that movie is so coincidental that it lacks realism.

Adjective + '-해서' (cause).

8

우연한 기회로 얻은 정보가 큰 도움이 되었습니다.

Information obtained through a chance opportunity was a great help.

Modifier form.

1

삶의 많은 부분은 사실 우연한 사건들의 연속이다.

Much of life is actually a series of accidental events.

Philosophical statement.

2

이 논문은 우연한 변수가 결과에 미치는 영향을 분석한다.

This paper analyzes the impact of accidental variables on the results.

Academic register.

3

우연한 만남을 운명으로 승화시키는 것은 인간의 몫이다.

It is up to humans to sublimate a chance meeting into destiny.

Abstract noun usage.

4

그의 발언은 결코 우연한 실수가 아니었음이 드러났다.

It was revealed that his remark was by no means an accidental mistake.

Complex sentence structure.

5

우연한 일들이 모여 필연적인 결과를 만들어내기도 한다.

Accidental matters sometimes gather to create an inevitable result.

Contrast between '우연' and '필연'.

6

작가는 우연한 장치를 통해 극의 긴장감을 고조시켰다.

The author heightened the play's tension through accidental devices.

Literary analysis.

7

우연한 기회에 발견된 유물이 역사를 새로 쓰게 했다.

An artifact discovered by chance caused history to be rewritten.

Causative construction.

8

우연한 상황에 대처하는 능력도 실력의 일부다.

The ability to deal with accidental situations is also part of one's skill.

Nominalized clause.

1

우주론적 관점에서 존재의 시작은 우연한 요동에서 비롯되었다.

From a cosmological perspective, the beginning of existence originated from an accidental fluctuation.

Scientific/Philosophical register.

2

그 정치적 사건은 우연한 촉발제가 도화선이 되어 폭발했다.

That political event exploded as an accidental trigger became the fuse.

Metaphorical usage.

3

우연한 일치의 미학은 문학적 상상력의 원천이 되기도 한다.

The aesthetics of coincidental match also become the source of literary imagination.

Abstract academic tone.

4

사회학자들은 우연한 만남이 사회적 자본 형성에 기여한다고 본다.

Sociologists view that accidental meetings contribute to the formation of social capital.

Indirect quotation.

5

우연한 계기로 시작된 혁명이 체제의 근간을 흔들어 놓았다.

A revolution started by a chance motive shook the foundations of the system.

Historical narrative.

6

우연한 발견의 가치는 그것을 알아보는 안목에 의해 결정된다.

The value of an accidental discovery is determined by the eye that recognizes it.

Passive voice.

7

인간의 인지 능력은 우연한 패턴에서 의미를 찾으려는 경향이 있다.

Human cognitive ability tends to seek meaning in accidental patterns.

Psychological register.

8

우연한 사건들이 얽히고설켜 거대한 운명의 수레바퀴를 돌린다.

Accidental events become intertwined and turn the great wheel of fate.

Highly literary/poetic style.

Common Collocations

우연한 만남
우연한 기회
우연한 발견
우연의 일치
우연한 사고
우연한 계기
우연한 일
우연한 마주침
우연한 결과
우연한 이득

Common Phrases

우연히 알게 되다

— To find out or get to know something by chance. Very common in conversation.

그 소식을 우연히 알게 됐어요.

우연하게도

— Coincidentally enough. Used to introduce a surprising fact.

우연하게도 그와 나는 생일이 같다.

단순한 우연

— A mere coincidence. Used to downplay the significance of an event.

그건 그냥 단순한 우연이야.

우연을 가장하다

— To pretend something is an accident. Used when someone plans a meeting but acts like it's a chance encounter.

그는 우연을 가장해 그녀를 만났다.

우연이 겹치다

— Coincidences overlap. Used when multiple chance events happen at once.

우연이 겹치면 운명이 된다.

우연이 아니다

— It is not a coincidence. Often used to imply fate or a hidden plan.

우리가 만난 건 우연이 아니야.

우연의 산물

— A product of chance. Used for things created or happened randomly.

예술은 가끔 우연의 산물이다.

우연한 행운

— Accidental luck. A stroke of good fortune that wasn't worked for.

우연한 행운이 찾아왔다.

우연을 믿다

— To believe in coincidence. Often discussed in a philosophical sense.

나는 모든 것이 우연이라고 믿는다.

우연히 마주치다

— To bump into someone by chance. The most common way to describe meeting someone.

길에서 옛 친구를 우연히 마주쳤다.

Often Confused With

우연하다 vs 사고 (Accident)

'사고' is a negative event (crash, injury). '우연' is a neutral/positive coincidence.

우연하다 vs 갑자기 (Suddenly)

'갑자기' is about speed. '우연히' is about lack of planning.

우연하다 vs 뜻밖에 (Unexpectedly)

'뜻밖에' focuses on the person's surprise. '우연히' focuses on the event's random nature.

Idioms & Expressions

"우연의 일치"

— A coincidence of chance. Used when two things happen to match perfectly.

이름이 같은 건 우연의 일치예요.

Common
"하늘이 도운 우연"

— A chance encounter/event helped by heaven. Used for extremely lucky coincidences.

그것은 정말 하늘이 도운 우연이었다.

Literary
"우연을 필연으로 만들다"

— To turn a chance event into something inevitable. Often used in business or romance.

그는 우연을 필연으로 만드는 능력이 있다.

Inspirational
"지나가다 우연히"

— To pass by chance. Often used as a prefix to seeing or hearing something.

지나가다 우연히 그 광경을 봤어.

Casual
"우연의 장난"

— A prank of chance. Used when a coincidence causes a funny or ironic situation.

이 모든 상황은 우연의 장난 같아.

Casual
"우연한 한 수"

— An accidental move (in a game or strategy) that turns out to be brilliant.

그의 우연한 한 수가 승리를 불렀다.

Game/Strategy
"우연히 눈이 마주치다"

— To accidentally make eye contact. A common romantic trope.

그와 우연히 눈이 마주쳐서 설렜다.

Romantic
"우연이 만든 기적"

— A miracle created by chance.

그들의 재회는 우연이 만든 기적이었다.

Poetic
"우연을 쫓다"

— To chase chance. Used for people who rely on luck rather than effort.

우연을 쫓기보다 실력을 쌓아라.

Advice
"우연히 발을 들이다"

— To step into something (a field, a hobby) by chance.

우연히 이 분야에 발을 들였다.

Career

Easily Confused

우연하다 vs 유연하다

Sounds very similar to 우연하다.

유연하다 means 'to be flexible' (physically or mentally). 우연하다 means 'to be accidental'.

그녀는 몸이 유연하다. (She is flexible.) vs. 그것은 우연한 일이다. (That is an accidental matter.)

우연하다 vs 당연하다

Both end in -연하다.

당연하다 means 'to be natural/expected'. 우연하다 is the opposite (unplanned).

이기는 게 당연하다. (It's natural to win.)

우연하다 vs 의연하다

Sounds similar.

의연하다 means 'to be resolute/unmoved'.

그는 고난 앞에서도 의연했다. (He was resolute in the face of hardship.)

우연하다 vs 초연하다

Sounds similar.

초연하다 means 'to be aloof/detached'.

그는 명예에 초연하다. (He is detached from fame.)

우연하다 vs 필연

Related concept.

필연 is 'inevitability'. It's the antonym of 우연.

이것은 우연이 아니라 필연이다. (This is not chance but inevitability.)

Sentence Patterns

A1

우연히 [Noun]을/를 [Verb]

우연히 친구를 만났어요.

A2

우연한 [Noun]

우연한 기회였어요.

B1

우연히 [Verb]-게 되다

우연히 알게 되었어요.

B2

우연하게도 [Sentence]

우연하게도 같은 책을 읽고 있었어요.

C1

우연한 [Noun]이/가 [Verb]-는 계기가 되다

우연한 만남이 인생을 바꾸는 계기가 되었다.

C2

우연의 산물로서의 [Noun]

이것은 우연의 산물로서의 예술이다.

B1

[Noun]은/는 우연이 아니다

우리의 만남은 우연이 아니야.

A2

정말 우연하네요!

와, 정말 우연하네요!

Word Family

Nouns

우연 (Chance/Coincidence)
우연성 (Randomness/Accidentality)
우연론 (Accidentalism)

Adjectives

우연하다 (To be accidental)

Related

필연 (Inevitability)
인연 (Fate/Connection)
운명 (Destiny)
기회 (Opportunity)
사건 (Incident)

How to Use It

frequency

Very high in daily speech, storytelling, and media.

Common Mistakes
  • Using '우연하다' for a car crash. 사고가 나다 (To have an accident).

    '우연하다' is for coincidences, not physical accidents/mishaps.

  • Saying '우연한이야' (U-yeon-han-i-ya). 우연이야 (U-yeon-i-ya).

    You can't use the modifier form '-ㄴ' right before the copula '-이다'. Use the noun '우연'.

  • Confusing '우연히' with '갑자기'. 우연히 (By chance) vs 갑자기 (Suddenly).

    Something can be sudden but planned. '우연히' specifically means unplanned.

  • Using '우연하다' to describe a person's character. 그는 우연한 사람이다 (X).

    People aren't 'accidental.' Only events are. Use it to describe their actions instead.

  • Overusing '우연하게' instead of '우연히'. 우연히 만났어요.

    '우연히' is the standard, more natural adverb for daily actions.

Tips

Adverb vs Adjective

Remember: use '우연히' for verbs (I met him by chance) and '우연한' for nouns (It was a chance meeting). This is the most important rule for this word.

Luck vs. Intent

Use '우연하다' when you want to emphasize that you didn't do anything to make it happen. It's a great word for being humble about your successes.

The 'In-yeon' Link

If you want to sound very Korean, say '우연이 인연이 되었네요' (Our chance meeting has become a lasting connection). People will love it!

Catching '연'

In fast speech, '우연히' can sound like '우여니'. Don't be confused; it's the same word with the 'n' sound carrying over to the 'i'.

Formal Reports

In formal writing, use '우연한 발견' to describe research findings that weren't the primary goal of an experiment.

Pair with '일치'

Memorize '우연의 일치' as a single block. It's much easier than trying to build the phrase 'coincidence' from scratch.

Drama Logic

Notice how K-Drama characters always say '이건 우연이 아니야' (This isn't a coincidence). It's a classic way to signal that the plot is thickening!

Connectives

Practice using '우연해서' (because it's accidental). '상황이 너무 우연해서 믿기 힘들어요' (The situation is so coincidental it's hard to believe).

Smooth Vowels

Make sure to distinguish '우' (u) and '어' (eo) clearly. '우연' has a very specific mouth shape change.

Universal Chance

Think of the 'U' in 'U-yeon' as 'Universal'. It's a universal chance event!

Memorize It

Mnemonic

Think of 'U' and 'Yeon' as 'You' and 'Young'. You met a young friend by chance. 'U-Yeon-hada'!

Visual Association

Picture two paths crossing in a forest unexpectedly. That point where they cross is '우연'.

Word Web

Chance No Plan Meeting Discovery Surprise Coincidence Luck Unplanned

Challenge

Try to describe three things that happened to you this week that were '우연하다' using the modifier '우연한'.

Word Origin

From Middle Korean '우연하다', which was borrowed from the Hanja 偶然.

Original meaning: The state of things matching up or occurring without a specific cause.

Sino-Korean (Hanja-based).

Cultural Context

Be careful not to use '우연하다' for serious tragedies or crimes, as it can sound dismissive of the victim's pain.

In English, 'accidental' often has a negative connotation (like an accident). In Korean, '우연하다' is much more neutral or positive.

The K-Drama 'Destined With You' explores the line between chance and fate. The song '우연히 봄' (Spring by Chance) is a famous OST. Many Korean poems use '우연' to describe the beauty of nature's unplanned moments.

Practice in Real Life

Real-World Contexts

Meeting people

  • 우연히 마주치다
  • 우연한 만남
  • 우연히 보다
  • 우연히 알게 되다

Discoveries

  • 우연한 발견
  • 우연히 찾다
  • 우연한 발명
  • 우연히 듣다

Luck/Fortune

  • 우연한 행운
  • 우연한 기회
  • 우연히 얻다
  • 우연한 이득

Explaining events

  • 우연의 일치
  • 우연한 일
  • 우연히 발생하다
  • 우연하게도

Scientific/Academic

  • 우연한 변수
  • 우연한 결과
  • 우연성
  • 우연적 요소

Conversation Starters

"혹시 우연히 옛 친구를 만난 적이 있나요?"

"우연한 기회로 인생이 바뀐 경험이 있나요?"

"오늘 우연히 기분 좋은 일이 있었나요?"

"세상에 정말 우연한 일만 있다고 생각하세요?"

"가장 신기했던 우연의 일치는 무엇인가요?"

Journal Prompts

오늘 하루 중 가장 우연했던 순간에 대해 써보세요. (Write about the most accidental moment of your day.)

우연한 만남이 소중한 인연이 된 적이 있나요? (Has a chance meeting ever become a precious connection?)

과학이나 역사에서 우연한 발견이 얼마나 중요하다고 생각하나요? (How important do you think accidental discoveries are in science or history?)

당신의 꿈이나 목표가 우연한 계기로 시작되었나요? (Did your dream or goal start through a chance motive?)

우연과 필연 중 무엇이 삶에서 더 큰 비중을 차지할까요? (Between chance and inevitability, which takes up a larger portion of life?)

Frequently Asked Questions

10 questions

No, you should use '교통사고' (traffic accident). '우연하다' describes a coincidence or a chance event, not a physical collision or mishap. Using it for a car crash would sound like you met the other car 'by chance' in a romantic or lucky way, which is confusing.

'우연히' is the most common adverbial form and sounds very natural in almost all contexts. '우연하게' is also an adverb but sounds a bit more descriptive or formal. In 90% of cases, use '우연히' for actions like meeting someone or finding something.

It is mostly neutral. It simply means 'unplanned.' However, because unplanned events are often surprising, it frequently appears in positive contexts like '우연한 행운' (accidental luck). It can be negative if the coincidence caused a problem, but it doesn't carry an inherently negative meaning.

You can say '완전 우연의 일치였어요' or '정말 우연이었어요.' Both are very common. '우연의 일치' specifically translates to 'coincidence of chance' and is the standard idiomatic expression.

No, it describes events, situations, or actions. You cannot say 'He is accidental' in Korean. You must describe the meeting with him or his actions as accidental. For example, '그와의 만남은 우연했다' (The meeting with him was accidental).

This is a very common phrase meaning 'a chance motive' or 'a chance opportunity that started something.' It's often used when explaining how you started a hobby, a job, or a relationship. For example, '우연한 계기로 요리를 시작했어요' (I started cooking through a chance opportunity).

No, it's actually the opposite. '우연' is randomness. However, Koreans often believe that a series of '우연' (coincidences) is actually '인연' (fate). So while the word itself means chance, it's often discussed in the context of destiny.

The past tense is '우연했다' (plain), '우연했어요' (polite), or '우연했습니다' (formal). For example, '그 일은 정말 우연했어요' (That matter was truly accidental).

There isn't a specific slang word, but people often use '개우연' (vulgar/extreme coincidence) or simply '헐, 대박' (Heol, daebak) when a coincidence is shocking.

Yes, '우연' (U-yeon) is sometimes used as a given name in Korea, often implying a special or precious existence that came into one's life like a beautiful surprise.

Test Yourself 200 questions

writing

Write a sentence: 'I met a friend by chance.'

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writing

Write a sentence: 'It was a chance opportunity.'

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writing

Write a sentence: 'This is not a coincidence.'

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writing

Write a sentence: 'Coincidentally, we have the same name.'

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writing

Write a sentence: 'I found this cafe by chance.'

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writing

Write a sentence: 'It's a coincidence of chance.'

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writing

Write a sentence: 'I started this through a chance motive.'

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writing

Write a sentence: 'The meeting was very accidental.'

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writing

Write a sentence: 'Don't miss a chance opportunity.'

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writing

Write a sentence: 'Life is a series of accidental events.'

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writing

Write a sentence: 'I happened to hear the news.'

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writing

Write a sentence: 'Is this just a coincidence?'

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writing

Write a sentence: 'We wore the same clothes by chance.'

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writing

Write a sentence: 'The discovery was purely accidental.'

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writing

Write a sentence: 'A chance meeting changed my life.'

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writing

Write a sentence: 'I bumped into him at the park.'

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writing

Write a sentence: 'It happened by chance.'

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writing

Write a sentence: 'He pretended it was a coincidence.'

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writing

Write a sentence: 'The two events are coincidentally connected.'

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writing

Write a sentence: 'It was a total coincidence.'

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speaking

Describe a time you met a friend by chance.

Read this aloud:

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speaking

Say: 'This is a total coincidence.'

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speaking

Say: 'I found this by chance.'

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speaking

Explain why you started learning Korean.

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speaking

Say: 'Coincidentally, I was thinking about you.'

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speaking

Ask: 'Was it just a coincidence?'

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speaking

Say: 'I bumped into my teacher today.'

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speaking

Say: 'It happened by accident.'

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speaking

Say: 'Don't miss a chance opportunity.'

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speaking

Say: 'We have the same shoes by chance.'

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speaking

Say: 'It's not a coincidence, it's fate.'

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speaking

Say: 'I heard the news by chance.'

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speaking

Say: 'It was a lucky coincidence.'

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speaking

Say: 'The meeting was accidental.'

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speaking

Say: 'I stopped by the cafe by chance.'

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speaking

Say: 'It's a strange coincidence.'

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speaking

Say: 'I found money on the street by chance.'

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Correct! Not quite. Correct answer:
speaking

Say: 'It was an accidental discovery.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'Everything is accidental.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'Coincidentally, we are going to the same place.'

Read this aloud:

Correct! Not quite. Correct answer:
listening

Listen and write: '우연히 만났어요.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: '우연한 기회.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: '우연의 일치예요.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: '우연하게도 같네요.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: '정말 우연했어요.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: '우연한 발견입니다.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: '우연히 들었어요.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: '이건 우연이 아니야.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: '우연히 보게 됐어요.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: '우연한 만남이었죠.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: '순전히 우연입니다.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: '우연히 알게 된 사실.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: '우연히 마주치다.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: '우연을 믿나요?'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: '우연한 계기였어요.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:

/ 200 correct

Perfect score!

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