A2 adjective #2,500 most common 3 min read

틀림없다

It means something is definitely true or certain.

teullimeopda

Explanation at your level:

At this level, think of 틀림없다 as the word for 'sure.' If you see a cat and you know it is a cat, you can say 'Cat is there, 100%!' In Korean, you use this word to say 'I am sure.' It is a very strong word. Use it when you want to tell your teacher or friend that you are not guessing.

You can use 틀림없다 to talk about your plans or things you see. For example, if you see dark clouds, you can say 'It will rain, 틀림없다.' It helps you sound more confident when you speak. It is a great way to replace simple words like 'yes' or 'I think so' with something more powerful.

At the intermediate level, you will use 틀림없다 with the grammar pattern -(으)ㄹ 것이 틀림없다 (it must be the case that...). This is perfect for making logical deductions. If you see someone running with a suitcase, you can say 'He must be going to the airport.' It shows you are using logic to reach a conclusion.

As you move to B2, you will use this word to nuance your arguments. Instead of just stating facts, you use 틀림없다 to emphasize your certainty during debates or discussions. It distinguishes between a mere opinion and a conclusion you have reached through observation. It is essential for professional and academic contexts.

In advanced Korean, 틀림없다 appears in more complex sentence structures and literary contexts. You might use it to emphasize a point in an essay or a formal speech. It conveys a high level of rhetorical authority. Writers use it to guide the reader toward a specific conclusion, leaving no room for doubt in the narrative structure.

At the mastery level, you understand the subtle emotional weight of 틀림없다. It can be used to express frustration when others doubt you, or to provide absolute reassurance. Its usage in literature often highlights a character's internal conviction or stubbornness. You will recognize how it functions not just as a descriptor of truth, but as a marker of the speaker's psychological state and their relationship to the truth they are presenting.

Word in 30 Seconds

  • Means 'to be certain' or 'no room for error'.
  • Used in both formal and casual speech.
  • Often used with 'must be' patterns.
  • Essential for expressing confidence.

Hey there! Let's talk about 틀림없다. This is a super useful Korean word that literally breaks down into 'error' (틀림) + 'none' (없다). So, it literally means 'no errors.' When you use this, you are telling someone that you are completely certain about what you are saying.

Think of it as the Korean version of saying 'without a doubt' or 'it is certain.' Whether you are talking about a math problem you solved or predicting that your friend will be late, 틀림없다 is your go-to word to show you have zero doubts. It is a very strong, confident word that native speakers use all the time to express conviction.

The word 틀림없다 is a compound word formed from the noun 틀림 (error/mistake) and the adjective 없다 (to not exist). Historically, this construction reflects the Korean language's preference for descriptive compounds to express logical states.

In older texts, the concept of 'being without error' was synonymous with truth and reliability. While it evolved from a literal description of accuracy, it shifted into a common adjective to describe a speaker's mental state of certainty. It is a purely native Korean word, showing how the language builds complex ideas by stacking simple, functional roots together. It has remained stable in usage for centuries, serving as a pillar of confident communication.

You will hear 틀림없다 in both casual and formal settings. It is very common to hear it paired with the particle -임에 or -임이 to form phrases like '그는 범인임에 틀림없다' (He must be the culprit). It is versatile because it can be used for facts ('It is definitely rain') or opinions ('He is definitely a genius').

In casual speech, you might hear it shortened or used as a quick confirmation. If someone asks, 'Are you sure?', replying with '틀림없어!' is a very natural way to show you are 100% certain. It is slightly more formal than just saying 'Yes,' as it emphasizes the logical lack of error in your thought process.

While 틀림없다 is a word itself, it is often part of set phrases. 1. ~임에 틀림없다: This is the most common structure meaning 'must be.' 2. 틀림없는 사실: Meaning 'an undeniable fact.' 3. 틀림없이: The adverbial form meaning 'surely' or 'without fail.' 4. 틀림없을 것이다: Used to express a strong prediction about the future. 5. 틀림없다니까!: A slightly frustrated or emphatic way of saying 'I told you it's for sure!'

These expressions help you sound more natural. Using these, you can express varying degrees of certainty, from simple facts to strong, emotional assertions about what you believe to be true.

Grammatically, 틀림없다 acts as a descriptive verb or adjective. It often follows a noun clause ending in -(으)ㅁ or -기. For example, '그가 올 것임에 틀림없다.' The pronunciation is tricky: the double consonant ㄹㅁ is often simplified in fast speech, and the sound requires careful articulation of the and .

The IPA is roughly [tɯɭɭi-mʌp-t͈a]. Remember that the in is often silent or influences the following consonant. It rhymes loosely with other -없다 words like 다름없다 (to be no different) or 재미없다 (to be boring). Practice saying it slowly to ensure the -m- and -p- sounds are distinct.

Fun Fact

It is a perfect example of how Korean combines nouns and adjectives to create new meaning.

Pronunciation Guide

UK tɯɭɭi-mʌp-t͈a

Sounds like 'teul-lim-eop-da'.

US tɯɭɭi-mʌp-t͈a

Sounds like 'teul-lim-eop-da'.

Common Errors

  • Pronouncing the 'ㅂ' too strongly
  • Dropping the 'ㄹ' sound
  • Misplacing the stress

Rhymes With

재미없다 다름없다 쓸모없다 가차없다 거침없다

Difficulty Rating

Reading 2/5

Easy to read

Writing 2/5

Easy to use

Speaking 2/5

Easy to say

Listening 2/5

Easy to hear

What to Learn Next

Prerequisites

없다 틀리다

Learn Next

확실하다 분명하다

Advanced

의심할 여지가 없다

Grammar to Know

Noun + -(이)다

학생이다

Verb + -(으)ㄹ 것이다

갈 것이다

Adjective + -게

틀림없게

Examples by Level

1

이것은 내 책이 틀림없다.

This / my book / definitely.

Noun + particle + adjective.

2

그는 학생이 틀림없다.

He / student / definitely.

Simple identification.

3

정답이 틀림없다.

Correct answer / definitely.

Subject + adjective.

4

틀림없어요!

Definitely!

Polite ending.

5

그것은 사실이 틀림없다.

That / fact / definitely.

Noun + particle.

6

내일 비가 올 것이 틀림없다.

Tomorrow / rain / definitely.

Future tense.

7

이게 정답이 틀림없어.

This / answer / definitely.

Casual ending.

8

그녀는 천재가 틀림없다.

She / genius / definitely.

Identification.

1

그는 범인이 틀림없다.

2

이것은 최고의 선택임에 틀림없다.

3

그녀는 화가 난 것이 틀림없다.

4

내일은 날씨가 좋을 것이 틀림없다.

5

그는 지금 집에 있을 것이 틀림없다.

6

이 계획은 성공할 것이 틀림없다.

7

그는 거짓말을 하는 것이 틀림없다.

8

이것은 내 실수임에 틀림없다.

1

그는 분명히 약속을 잊은 것이 틀림없다.

2

이 사건의 배후에는 누군가가 있음이 틀림없다.

3

그녀가 그 사실을 알고 있을 것이 틀림없다.

4

이 결과는 노력의 결실임에 틀림없다.

5

그는 지금쯤 도착했을 것이 틀림없다.

6

이것은 단순한 우연이 아님이 틀림없다.

7

그는 진심으로 사과하는 것이 틀림없다.

8

이 영화는 명작임에 틀림없다.

1

그의 행동에는 숨겨진 의도가 있음이 틀림없다.

2

이 현상은 과학적으로 설명 가능함에 틀림없다.

3

그는 이번 프로젝트의 핵심 인물임이 틀림없다.

4

이러한 변화는 사회적 요구임에 틀림없다.

5

그녀의 재능은 타고난 것이 틀림없다.

6

이 결정은 신중하게 내려진 것이 틀림없다.

7

그는 자신의 실수를 인정하는 것이 틀림없다.

8

이것은 역사의 중요한 순간임에 틀림없다.

1

그의 논리는 빈틈이 없으며, 이는 철저한 준비의 결과임이 틀림없다.

2

이 고전 작품은 당대 사회상을 반영하고 있음이 틀림없다.

3

그의 침묵은 동의를 의미하는 것이 틀림없다.

4

이러한 경제적 위기는 구조적 문제임이 틀림없다.

5

그는 자신의 신념을 굽히지 않을 것이 틀림없다.

6

이 예술 작품은 작가의 고뇌가 담겨 있음이 틀림없다.

7

그의 성공은 우연이 아닌 필연임에 틀림없다.

8

이 정책은 장기적인 관점에서 효과가 있을 것이 틀림없다.

1

그의 철학적 사유는 당대 지성인들에게 깊은 영향을 미쳤음이 틀림없다.

2

이러한 미학적 시도는 새로운 예술 사조의 서막임에 틀림없다.

3

그의 고독은 단순한 외로움이 아닌 고결한 정신의 산물임이 틀림없다.

4

이 역사적 사건은 거대한 시대적 흐름의 필연적 귀결임이 틀림없다.

5

그의 언어는 단순한 소통을 넘어 영혼의 울림을 담고 있음이 틀림없다.

6

이러한 사회적 현상은 인간 본성에 대한 근원적 질문임이 틀림없다.

7

그의 삶은 불굴의 의지로 점철된 서사임이 틀림없다.

8

이러한 통찰은 오랜 경험과 사색의 결정체임이 틀림없다.

Common Collocations

틀림없는 사실
~임에 틀림없다
틀림없이
틀림없는 증거
틀림없는 사람
틀림없는 정답
틀림없는 예감
틀림없는 기회
틀림없는 판단
틀림없는 약속

Idioms & Expressions

"틀림없다니까"

I tell you it is certain!

그가 범인이라니까, 틀림없다니까!

casual

"틀림없는 소리"

A statement that is definitely correct.

그건 틀림없는 소리야.

neutral

"틀림없는 대답"

A definitive answer.

그는 틀림없는 대답을 내놓았다.

neutral

"틀림없을 리가"

There is no way it is certain (used in negation).

그게 틀림없을 리가 없다.

neutral

"틀림없이 ~할 것이다"

Will definitely do something.

그는 틀림없이 올 것이다.

neutral

"틀림없는 사실이다"

It is an undeniable fact.

그것은 틀림없는 사실이다.

formal

Easily Confused

틀림없다 vs 틀리다

Shared root.

틀리다 is 'to be wrong', 틀림없다 is 'to be certain'.

답이 틀리다 vs 답이 틀림없다.

틀림없다 vs 다르다

Sounds similar.

다르다 is 'to be different'.

그것은 다르다.

틀림없다 vs 확실하다

Similar meaning.

확실하다 is 'to be sure', 틀림없다 is 'no error'.

확실하다 vs 틀림없다.

틀림없다 vs 분명하다

Similar context.

분명하다 is 'to be clear'.

분명하다 vs 틀림없다.

Sentence Patterns

B1

Subject + [Noun] + 임에 틀림없다

그것은 사실임에 틀림없다.

B1

Subject + [Verb] + (으)ㄹ 것이 틀림없다

그는 올 것이 틀림없다.

A2

틀림없이 + Verb

그는 틀림없이 성공한다.

A1

Noun + (이)가 틀림없다

이것이 정답이 틀림없다.

B2

틀림없을 것이다

결과는 좋을 것이 틀림없을 것이다.

Word Family

Nouns

틀림 error/mistake

Verbs

틀리다 to be wrong

Adjectives

틀림없다 certain

Related

없다 root adjective

How to Use It

frequency

9/10

Formality Scale

Formal (written) Neutral (spoken) Casual (friends)

Common Mistakes

Using '틀림없다' as a verb. It is an adjective.
It describes a state, not an action.
Confusing with '다르다'. Use '틀리다' for wrong, '다르다' for different.
Learners mix up the roots.
Overusing in every sentence. Use for emphasis.
It loses impact if used too much.
Incorrect particle usage. Use -임에 or -임이.
Grammar requires specific connectors.
Mixing with '의심하다'. They are opposites.
One is certainty, one is doubt.

Tips

💡

Memory Palace Trick

Place a big checkmark in your mental room.

💡

When Native Speakers Use It

When they are 100% sure.

🌍

Cultural Insight

Used often in detective shows.

💡

Grammar Shortcut

Use -임에 for formal certainty.

💡

Say It Right

Focus on the double consonant.

💡

Don't Make This Mistake

Don't confuse with 'wrong'.

💡

Did You Know?

It is a compound of two simple words.

💡

Study Smart

Use it with 'must be' patterns.

💡

Practice

Write 5 sentences daily.

💡

Listen

Listen for it in dramas.

Memorize It

Mnemonic

Think of a 'T-Rex' (틀) without 'limbs' (없다) - he is definitely not moving!

Visual Association

A checkmark (✓) symbol.

Word Web

Certainty Truth Correction Logic

Challenge

Say 'It is definitely [something]' in Korean 5 times today.

Word Origin

Korean

Original meaning: No error

Cultural Context

None, very neutral.

Used similarly to 'undoubtedly' or 'for sure'.

Used in many K-dramas for dramatic reveal scenes.

Practice in Real Life

Real-World Contexts

School

  • 정답이 틀림없다
  • 이해가 틀림없다
  • 공부가 틀림없다

Detective/Mystery

  • 범인이 틀림없다
  • 증거가 틀림없다
  • 범행이 틀림없다

Daily Life

  • 내일 날씨가 틀림없다
  • 그가 올 것이 틀림없다
  • 이게 맞다 틀림없다

Work

  • 성공이 틀림없다
  • 계획이 틀림없다
  • 결과가 틀림없다

Conversation Starters

"What is something you are 100% sure about today?"

"Have you ever been wrong about something you thought was '틀림없다'?"

"How do you express certainty in your native language?"

"Can you describe a situation where you were absolutely sure?"

"Why do people use '틀림없다' in arguments?"

Journal Prompts

Write about a time you were sure of something.

Describe a person you trust and why they are '틀림없다'.

Think of a future event and explain why it is '틀림없다'.

How does being sure change the way you speak?

Frequently Asked Questions

8 questions

It is neutral and used in all contexts.

Yes, e.g., 'He is definitely the one.'

Use '절대 아니다'.

No, it is an adjective.

틀림없이.

It means 'certain' or 'no error'.

Yes, with '-(으)ㄹ 것이'.

Extremely common.

Test Yourself

fill blank A1

그는 학생이 ___.

Correct! Not quite. Correct answer: 틀림없다

It means he is definitely a student.

multiple choice A2

Which word means 'certainly'?

Correct! Not quite. Correct answer: 틀림없이

The adverb form is 틀림없이.

true false B1

틀림없다 is used to express doubt.

Correct! Not quite. Correct answer: False

It expresses certainty.

match pairs B1

Word

Meaning

All matched!

Adverb vs Adjective.

sentence order B2

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

Subject + Noun clause + Adjective.

Score: /5

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