A2 adjective 4 min read

유일하다

It means being the only one of its kind.

yuilhada

Explanation at your level:

You use 유일하다 when there is only one thing. If you have one apple and no other fruit, that apple is 유일한 fruit. It is a very useful word to say 'only.' You can say 'This is my only friend,' which is '이 친구는 나의 유일한 친구입니다.' Keep it simple: one thing = 유일하다.

At this level, you can use 유일한 to describe nouns. For example, 'The only way to go home' is '집에 가는 유일한 방법.' It helps you be specific. Remember that 유일하다 is the base form, but we usually add -ㄴ to describe things. Practice saying 'My only book' or 'The only teacher' to get comfortable!

Now you can use it in more complex sentences. You might say, 'Learning Korean is my 유일한 hobby' (한국어 배우기는 나의 유일한 취미예요). It is great for expressing personal feelings or identifying the single solution to a problem. Use it to emphasize that there are no other options available.

At the B2 level, notice how 유일하다 adds nuance to your arguments. Instead of saying 'There is no other way,' you can say 'This is the 유일한 solution' (이것이 유일한 해결책입니다). It sounds more professional and precise. You can also use it in formal writing to describe unique historical events or rare occurrences.

In advanced contexts, 유일하다 is used to create strong rhetoric. You might use it in a speech or essay to highlight a unique perspective. For example, 'This theory is the 유일한 explanation for the phenomenon.' It carries weight and authority. You can also combine it with other sophisticated vocabulary to describe complex, one-of-a-kind situations.

At the mastery level, you will encounter 유일하다 in literary works and deep philosophical discussions. It is often used to discuss the 'uniqueness' of human experience or the 'sole' truth in a debate. You might see it in the form 유일무이한, which elevates the language to a poetic or highly formal register. Understanding the subtle difference between 'only' (단지) and 'unique' (유일한) is key here.

Word in 30 Seconds

  • Means 'the only one' or 'unique'.
  • Commonly used as '유일한' before a noun.
  • Sino-Korean origin.
  • Useful for emphasizing singularity.

Hey there! Let's talk about 유일하다. This is a super powerful word in Korean that essentially means 'unique' or 'the only one.' Imagine you have a collection of marbles, and there is one special marble that looks completely different from all the others—that marble is 유일하다.

When you use this word, you are emphasizing exclusivity. It isn't just about being 'rare'; it is about being the single instance of something. Whether you are talking about the only person who can solve a problem or the only store in town, this word hits the nail on the head.

It is a very common word in both daily conversation and formal writing. You will hear it in K-dramas when someone says, 'You are my 유일한 (only) love.' It carries a sense of importance and finality that 'just one' doesn't quite capture. Think of it as the ultimate way to say something is one-of-a-kind!

The word 유일하다 is a Sino-Korean word, which means it is derived from Chinese characters (Hanja). Specifically, it comes from the characters (only/sole) and (one).

If you look at the history of these characters, originally referred to a response or a sound of agreement, but it evolved to mean 'only' or 'solely.' When combined with , which is the most fundamental number, you get a word that perfectly encapsulates the concept of a 'sole one.' This structure is very common in East Asian languages, where combining these two concepts creates a strong emphasis on singularity.

Historically, this term was used in philosophical and literary texts to describe things that were absolute or divine. Over time, it transitioned into everyday language. It is fascinating how these ancient characters still influence how we express uniqueness today. It is a perfect example of how Korean vocabulary relies on the logical stacking of concepts to create precise meanings.

Using 유일하다 is straightforward, but you have to be careful with its grammatical form. Because it is an adjective, it often appears as 유일한 (the only [noun]) when modifying a noun, or 유일하다 when ending a sentence.

Common collocations include 유일한 방법 (the only way), 유일한 희망 (the only hope), and 유일한 친구 (the only friend). These phrases are extremely common in both spoken and written Korean. You will find it used in formal reports, emotional letters, and casual chats alike.

The register is neutral, meaning you can use it with friends or in a business meeting without sounding out of place. However, because it carries a strong emotional weight, try not to overuse it. If you call everything 'the only one,' it loses its special impact! Use it when you really want to highlight that something stands alone.

While 유일하다 is a direct descriptor, it is part of several powerful expressions. 1. 유일무이하다: This is a four-character idiom (Sajaseong-eo) meaning 'the one and only,' emphasizing that there is absolutely no second one like it. 2. 유일한 구세주: 'The only savior,' often used in dramatic contexts. 3. 유일한 대안: 'The only alternative,' common in business or problem-solving. 4. 유일무이한 존재: 'A unique existence,' often used to describe someone irreplaceable. 5. 유일한 혈육: 'The only blood relative,' used in family contexts to denote the last remaining family member.

Grammatically, 유일하다 functions as a descriptive verb (adjective). When you want to modify a noun, you must change the ending to -ㄴ, resulting in 유일한. For example: 유일한 사람 (the only person).

Pronunciation-wise, it is pronounced [유일하다] /yu-il-ha-da/. The 'ㄹ' sound in 유일 is a crisp 'l' sound, and the 'ㅎ' in 하다 is soft. A common mistake is to over-pronounce the 'ㅎ', but in fast speech, it often blends slightly into the preceding sound.

It doesn't have a plural form because the meaning itself implies 'one.' It is a singular concept by nature, so you don't need to worry about pluralizing it. Just focus on placing it correctly before the noun it modifies or at the end of your sentence for emphasis.

Fun Fact

The character 唯 was originally used as a sound of agreement, like saying 'Yes!'

Pronunciation Guide

UK /yuːɪlɦada/

Standard Korean pronunciation.

US /yuːɪlɦada/

Standard Korean pronunciation.

Common Errors

  • Pronouncing the 'ㅎ' too hard
  • Slurring the 'ㄹ' sound
  • Misplacing the stress on the wrong syllable

Rhymes With

일하다 말하다 살하다 갈하다 달하다

Difficulty Rating

Reading 2/5

Easy to read in context.

Writing 2/5

Straightforward grammar.

Speaking 2/5

Commonly used.

Listening 2/5

Clear pronunciation.

What to Learn Next

Prerequisites

하나 사람 방법

Learn Next

독특하다 유일무이 특별하다

Advanced

존재 해결책 대안

Grammar to Know

Adjective modification

유일한

Sino-Korean roots

유일

Sentence endings

유일하다

Examples by Level

1

이것은 나의 유일한 친구입니다.

This is my only friend.

Modifying noun with -ㄴ

2

유일한 방법이에요.

It is the only way.

Simple sentence structure

3

그는 유일한 아들입니다.

He is the only son.

Noun modification

4

이것이 유일한 정답입니다.

This is the only correct answer.

Formal ending

5

유일한 기회입니다.

It is the only opportunity.

Noun modification

6

유일한 희망이에요.

It is the only hope.

Emotional context

7

유일한 가게입니다.

It is the only shop.

Descriptive usage

8

유일한 선택입니다.

It is the only choice.

Noun modification

1

그는 우리 학교의 유일한 외국인입니다.

2

이것은 유일한 해결책입니다.

3

당신은 나의 유일한 사랑입니다.

4

여기가 유일한 출구입니다.

5

그는 유일한 생존자입니다.

6

이것이 유일한 이유입니다.

7

유일한 실수를 했습니다.

8

유일한 증거를 찾았습니다.

1

그 제안은 유일한 대안이었습니다.

2

우리는 유일한 목격자를 찾고 있습니다.

3

그것은 유일무이한 경험이었습니다.

4

이 섬에는 유일한 마을이 있습니다.

5

그는 유일한 상속자입니다.

6

그것은 유일한 성공 사례입니다.

7

유일한 길을 선택해야 합니다.

8

그녀는 유일한 후보자입니다.

1

그의 이론은 유일한 과학적 근거를 제시합니다.

2

이것은 유일무이한 예술 작품입니다.

3

그는 유일한 권한을 가지고 있습니다.

4

유일한 해결책은 타협뿐입니다.

5

이것은 유일한 예외입니다.

6

그는 유일한 책임자입니다.

7

유일한 목표는 승리입니다.

8

그것은 유일한 가치를 지닙니다.

1

이 사건은 유일무이한 역사적 사례로 남을 것입니다.

2

그의 해석은 유일한 정당성을 확보했습니다.

3

우리는 유일한 가능성을 타진하고 있습니다.

4

이것은 유일한 논리적 귀결입니다.

5

그는 유일한 진실을 알고 있습니다.

6

유일한 돌파구는 혁신입니다.

7

이것은 유일한 보편적 원리입니다.

8

그는 유일한 권위자입니다.

1

그의 철학은 유일무이한 체계를 구축했습니다.

2

이것은 유일한 존재론적 증명입니다.

3

그는 유일한 대변자로서의 역할을 수행합니다.

4

유일한 도덕적 의무를 다하고 있습니다.

5

이것은 유일한 미학적 가치를 지닙니다.

6

그의 유일무이한 업적은 인정받아야 합니다.

7

유일한 해답은 내면에 있습니다.

8

그는 유일한 통찰력을 가진 인물입니다.

Common Collocations

유일한 방법
유일한 희망
유일한 이유
유일한 친구
유일한 선택
유일한 대안
유일한 기회
유일한 정답
유일한 증거
유일무이하다

Idioms & Expressions

"유일무이"

the one and only

그는 유일무이한 존재다.

formal

"유일한 구세주"

the only savior

그가 우리의 유일한 구세주다.

dramatic

"유일한 돌파구"

the only breakthrough

그것이 유일한 돌파구였다.

business

"유일한 혈육"

the only blood relative

그녀는 나의 유일한 혈육이다.

neutral

"유일한 대안"

the only alternative

그것이 유일한 대안입니다.

formal

"유일한 통로"

the only path/channel

이것이 유일한 통로입니다.

neutral

Easily Confused

유일하다 vs 독특하다

Both mean unique.

독특하다 means 'distinct/peculiar', 유일하다 means 'the only one'.

그는 독특한 성격이다 (He has a unique personality) vs 이것이 유일한 방법이다 (This is the only way).

유일하다 vs 하나

Both relate to one.

하나 is a number, 유일하다 is a state of being alone.

사과 하나 (one apple) vs 유일한 사과 (the only apple).

유일하다 vs 단지

Both mean 'only'.

단지 is an adverb, 유일하다 is an adjective.

단지 사과일 뿐이다 (It is just an apple) vs 유일한 사과다 (It is the only apple).

유일하다 vs 특별하다

Both are positive.

특별하다 means 'special', 유일하다 means 'singular'.

특별한 선물 (special gift) vs 유일한 선물 (the only gift).

Sentence Patterns

A1

Subject + 은/는 + 유일한 + Noun + 입니다

이것은 나의 유일한 기회입니다.

A2

Noun + 이/가 + 유일하다

그것이 유일합니다.

B1

유일한 + Noun + 으로 + Verb

유일한 방법으로 해결했습니다.

B2

Subject + 은/는 + 유일무이한 + Noun + 이다

그는 유일무이한 천재다.

B1

유일한 + Noun + 이 + Verb

유일한 희망이 사라졌습니다.

Word Family

Nouns

유일성 uniqueness

Adjectives

유일하다 to be the only one

Related

하나 the number one
독보적 unrivaled

How to Use It

frequency

7

Formality Scale

유일무이하다 (Formal) 유일하다 (Neutral) 단 하나 (Casual)

Common Mistakes

Using '유일' as a verb directly. Use '유일하다'.
유일 is a noun/root, it needs -하다 to be a verb.
Confusing '유일한' with '하나의'. Use '유일한' for 'unique/only'.
'하나의' just means 'one', '유일한' means 'the only one'.
Using '유일하다' to describe many things. Use '여러' or '많은'.
유일하다 is for singular items.
Forgetting to add -ㄴ to modify a noun. Use '유일한' + noun.
Adjectives need to be conjugated to modify nouns.
Overusing '유일하다' in casual speech. Use '딱 하나' or '단 하나'.
'유일하다' can sound a bit formal or dramatic in casual settings.

Tips

💡

Memory Palace Trick

Imagine a lonely island—that island is the '유일한' island.

💡

When Native Speakers Use It

They use it to emphasize that there is no other option.

🌍

Cultural Insight

It's a very romantic word in Korean culture.

💡

Grammar Shortcut

Always remember the -ㄴ ending for nouns.

💡

Say It Right

Keep the 'ㄹ' sound crisp.

💡

Don't Make This Mistake

Don't use it for plural items.

💡

Did You Know?

It comes from ancient Chinese characters.

💡

Study Smart

Practice by describing things in your room that are the only one of their kind.

💡

Writing Tip

Use it to add emotional weight to your essays.

💡

Speaking Tip

Pause slightly before saying '유일한' for emphasis.

Memorize It

Mnemonic

Yoo-il (You-ill) -> 'You are the only one who is ill' (a bit silly, but memorable!)

Visual Association

A single tree standing alone in a field.

Word Web

unique alone sole one

Challenge

Write 3 sentences using '유일한'.

Word Origin

Sino-Korean

Original meaning: Only (唯) one (一)

Cultural Context

None

Similar to 'unique' or 'the only one'.

Used in many K-pop lyrics to express deep love.

Practice in Real Life

Real-World Contexts

At work

  • 유일한 대안
  • 유일한 해결책
  • 유일한 전문가

In relationships

  • 유일한 사람
  • 유일한 사랑
  • 유일한 친구

Problem solving

  • 유일한 방법
  • 유일한 길
  • 유일한 선택

History/Art

  • 유일무이한 작품
  • 유일한 사례
  • 유일한 기록

Conversation Starters

"당신에게 가장 유일한 존재는 누구인가요?"

"지금 당신이 가진 유일한 고민은 무엇인가요?"

"이 세상에서 유일무이하다고 생각하는 것은 무엇인가요?"

"유일한 방법이 없다고 느낄 때 어떻게 하나요?"

"당신을 유일하게 만드는 것은 무엇인가요?"

Journal Prompts

Write about the only person you trust.

Describe a unique object you own.

What is the only thing you would take to a deserted island?

Reflect on a time you felt like the only one who understood a situation.

Frequently Asked Questions

8 questions

It is neutral and can be used anywhere.

Yes, it is very common for people.

No, it is inherently singular.

Use '유일한' + noun.

단 하나 is more about quantity, 유일한 is about uniqueness.

Yes, it is great for expressing sincerity.

It is a descriptive verb (adjective).

Yes, like 독특하다 (distinct).

Test Yourself

fill blank A1

이것은 나의 ___ 친구입니다.

Correct! Not quite. Correct answer: 유일한

It means 'only'.

multiple choice A2

What does '유일하다' mean?

Correct! Not quite. Correct answer: The only one

It means unique or sole.

true false B1

Can '유일하다' be used for plural objects?

Correct! Not quite. Correct answer: False

It refers to a single, unique item.

match pairs B1

Word

Meaning

All matched!

Matching phrases to meanings.

sentence order B2

Tap words below to build the sentence
Correct! Not quite. Correct answer:

Correct order is subject-object-verb.

fill blank B1

그는 이 팀의 ___ 전문가입니다.

Correct! Not quite. Correct answer: 유일한

He is the only expert.

multiple choice B2

Which is a synonym for '유일무이'?

Correct! Not quite. Correct answer: 유일한

Both imply uniqueness.

true false B2

Is '유일한' a verb?

Correct! Not quite. Correct answer: False

It is an adjective (descriptive verb).

match pairs C1

Word

Meaning

All matched!

Advanced vocabulary matching.

sentence order C2

Tap words below to build the sentence
Correct! Not quite. Correct answer:

His unique achievement is great.

Score: /10

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