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B2 adjective 10分钟阅读

효과적이다

hyogwajeogida
例句 효과적이다 30秒了解
解析 효과적이다 in your Level:
At the A1 level, '효과적이다' might be a bit difficult to use in long sentences, but you can understand it as 'it works well.' Think of it like saying 'It's good for...' You can use it to talk about simple things like medicine or a way of studying. For example, if you want to say 'This medicine is good,' you can use a similar idea. At this stage, just remember that '효과' means 'result' or 'effect.' If something has a 'good effect,' it is '효과적이다.' You will mostly see this in short sentences like '이것은 효과적이에요' (This is effective). It is a useful word to know when you are looking for products or advice in Korea. Don't worry about the complex grammar yet; just focus on the meaning of 'working well.'
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At the A2 level, you can start using '효과적이다' with simple nouns and the particle '-에'. This allows you to say what something is effective *for*. For example, '건강에 효과적이에요' (It is effective for health) or '공부에 효과적이에요' (It is effective for studying). You are moving beyond just saying something is 'good' (좋아요) and starting to explain *why* or *how* it is good. You might also see the past tense '효과적이었어요' (It was effective). At this level, you should be able to recognize the word in advertisements and basic advice. It is a step toward more professional-sounding Korean. Try to use it when you are recommending something to a friend, like a new app or a specific food that is good for a cold.
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At the B1 level, you should be comfortable using '효과적이다' in more complex sentence structures. You can use the '-는 데' pattern to describe an action: '한국어를 배우는 데 효과적이에요' (It is effective in learning Korean). You are also expected to distinguish between '효과적이다' (effective) and '효율적이다' (efficient) in basic contexts. You can use adverbs like '매우' (very) or '별로' (not really) to modify the degree of effectiveness. This word becomes very useful for writing short essays or participating in class discussions where you need to evaluate different options. You should also be able to use the noun-modifying form '효과적인' to describe things like '효과적인 방법' (an effective method).
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At the B2 level, '효과적이다' is a key vocabulary item for academic and professional discussions. You should be able to use it to evaluate complex strategies, policies, and scientific results. You can use it with a wide range of adverbs like '상당히' (considerably), '극히' (extremely), or '비효과적이다' (to be ineffective). You should understand the nuance of using this word in formal reports versus casual conversation. At this level, you are expected to use it accurately in the '-는 데 있어(서)' pattern, which is a more formal version of '-는 데'. For example, '문제를 해결하는 데 있어서 가장 효과적인 방안' (The most effective measure in solving the problem). You should also be aware of synonyms like '유효하다' and '실질적이다' and know when to use them instead.
At the C1 level, you use '효과적이다' with precision and stylistic flair. You can integrate it into complex argumentative structures, using it to build logical cases for or against certain actions. You understand its role in creating a 'professional' tone in writing. You are also familiar with related Hanja (Chinese character) terms like '시너지 효과' (synergy effect) or '역효과' (adverse effect/backfire). You can discuss the 'efficacy' (효능) of treatments or the 'effectiveness' of abstract concepts like diplomatic strategies or linguistic theories. Your usage reflects an understanding of the subtle differences between 'effective,' 'efficient,' 'valid,' and 'productive.' You can use the word to critique not just the result, but the entire methodology behind a project.
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At the C2 level, '효과적이다' is used with native-like mastery, often in highly specialized or literary contexts. You can use it to discuss the 'rhetorical effectiveness' of a piece of literature or the 'socio-economic effectiveness' of a national policy. You are comfortable using it in high-level debates where the definition of 'effectiveness' itself might be the topic of discussion. You can effortlessly switch between '효과적이다' and more obscure synonyms or idiomatic expressions to avoid repetition and add nuance. You understand how the word functions within the broader landscape of Korean honorifics and formal discourse. Whether you are writing a doctoral thesis or delivering a keynote speech, you use this word to provide sharp, insightful evaluations of the world around you.
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例句

효과적이다 30秒了解

  • Means 'to be effective' in producing a desired result or outcome.
  • Commonly used in academic, business, and medical contexts to evaluate solutions.
  • Often paired with particles like '-에' (for) and structures like '-는 데' (in doing).
  • Different from 'efficient' (효율적), which focuses on saving resources rather than just results.

The Korean word 효과적이다 (hyogwajeog-ida) is a versatile adjective that translates most directly to "to be effective." In a linguistic sense, it combines the noun 효과 (hyogwa), meaning "effect" or "result," with the suffix -적 (-jeog), which transforms nouns into adjectives meaning "-ic" or "-al," and the copula -이다 (-ida), meaning "to be." When you describe something as 효과적이다, you are making a qualitative judgment that a specific method, tool, or action has successfully produced the intended or desired outcome. It is not just about doing something; it is about doing something that actually works toward a goal. This word is foundational in academic, professional, and daily evaluative contexts in Korea. For instance, if you are discussing a new study method, a marketing strategy, or a medical treatment, you would use this term to affirm its utility.

Purposeful Action
The term implies that there was an initial intention or a problem to be solved, and the subject successfully met that intention. It is the bridge between a plan and a successful reality.
Comparative Utility
Often used when comparing two different approaches to determine which one yields better results in a shorter time or with less effort, although the focus remains on the 'result' itself.

이 방법은 시간 관리에서 매우 효과적이다.
(This method is very effective for time management.)

In Korean society, where efficiency and results are highly valued (the 'Pali-pali' culture), being 'effective' is a high compliment for a system or a person's work style. It suggests that the person is not just busy, but productive. You will hear this word in news reports discussing government policies, in classrooms where teachers suggest study habits, and in hospitals where doctors explain the benefits of a specific medication. It is a 'high-value' word that elevates the register of your conversation from simple observation to critical analysis.

비타민 C는 면역력 강화에 효과적이다.
(Vitamin C is effective for strengthening immunity.)

Furthermore, the word often appears in the form 효과적인 (hyogwajeogin) when it modifies a noun directly. For example, '효과적인 해결책' (an effective solution). This usage is extremely common in writing, especially in essays and business reports. When you are describing a person's speech or a speech style, using this word suggests that the speaker was persuasive and moved the audience toward a specific conclusion.

Objective vs. Subjective
While often used objectively with data, it can also be used subjectively to describe personal experiences, such as a workout routine that felt effective for one's own body.

그의 연설은 청중을 설득하는 데 효과적이었다.
(His speech was effective in persuading the audience.)

Grammatically, 효과적이다 functions as a descriptive verb (adjective) in Korean. This means it can serve as the predicate of a sentence or modify a noun. Understanding its conjugation and the particles it typically pairs with is crucial for natural-sounding Korean. The most common pattern is [Noun] + -에 효과적이다, where the noun is the target or the area where the effectiveness is shown. For example, '건강에 효과적이다' (effective for health).

The '-는 데' Pattern
When you want to say something is effective 'in doing' something, you use the pattern [Verb Stem] + -는 데 효과적이다. This is a higher-level structure common in B2 and C1 levels. Example: '공부하는 데 효과적이다' (effective in studying).
Adjectival Form
To modify a noun, change the ending to 효과적인. Example: '효과적인 방법' (an effective method). This is used to define the nature of the noun before you even finish the sentence.

스트레스를 해소하는 데 효과적인 운동을 추천해 주세요.
(Please recommend an exercise that is effective in relieving stress.)

In formal writing, such as academic papers or news reports, you might see it combined with adverbs like 매우 (very), 상당히 (considerably), or 가장 (most). These adverbs help quantify the degree of effectiveness. Conversely, in negative sentences, you would use 효과적이지 않다 or 효과가 없다 (the latter meaning 'there is no effect,' which is a stronger way to say it didn't work at all).

새로운 마케팅 전략이 매출 증대에 효과적일까요?
(Will the new marketing strategy be effective in increasing sales?)

When using this word in conversation, the politeness level matters. In a professional setting, use 효과적입니다 (formal polite) or 효과적이에요 (informal polite). If you are writing a journal or a report where you use the plain diary style, use 효과적이다. The flexibility of this word across different registers makes it a staple for any serious learner aiming for fluency.

Placement of Adverbs
Adverbs like '가장' (most) or '정말' (really) should come immediately before '효과적이다' to emphasize the degree. Example: '이것이 가장 효과적이다' (This is the most effective).

이 약은 통증 완화에 매우 효과적입니다.
(This medicine is very effective for pain relief.)

If you spend any time in a professional or educational environment in South Korea, you will hear 효과적이다 almost daily. It is the bread and butter of evaluative language. In a corporate meeting, managers don't just ask if a plan is "good"; they ask if it is 효과적. This implies a focus on KPIs (Key Performance Indicators) and tangible results. For example, a team leader might say, "We need a more effective way to handle customer complaints," using the word to signal that the current method is failing to produce the desired satisfaction levels.

News and Media
Broadcasters use this word when reporting on new laws or scientific breakthroughs. '이번 정책은 부동산 시장 안정화에 효과적일 것으로 보입니다' (This policy is expected to be effective in stabilizing the real estate market).
Health and Wellness
In advertisements for supplements or skincare, '효과적이다' is a key marketing term. It promises the consumer that the product will do what it claims to do, whether that's reducing wrinkles or improving focus.

전문가들은 이 치료법이 암세포 억제에 효과적이라고 말합니다.
(Experts say this treatment is effective in inhibiting cancer cells.)

In academic settings, from high school classrooms to university lecture halls, the word is used to critique methodologies. A professor might point out that a student's research method was not 'effective' for the specific data set they were analyzing. This encourages a mindset of constant optimization. Even in self-help books or YouTube videos about productivity, the term is ubiquitous. You'll see titles like "How to Study Effectively" (어떻게 효과적으로 공부할까?) which immediately tells the viewer they will learn to maximize their results.

단어를 외울 때는 문장 속에서 외우는 것이 더 효과적이에요.
(When memorizing words, it is more effective to memorize them within sentences.)

Even in daily life, you might use it when talking about chores or hobbies. If you find a new way to clean your shoes that works better than the old way, you might tell a friend, "이게 훨씬 효과적이야!" (This is much more effective!). It adds a layer of intelligence and precision to your speech, showing that you are thinking about the 'how' and 'why' of your actions.

Advertising Slogans
Many Korean ads use '빠르고 효과적인' (fast and effective) as a catchphrase to appeal to the desire for quick, guaranteed results.

이 광고는 타겟 층에 매우 효과적으로 전달되었습니다.
(This advertisement was delivered very effectively to the target audience.)

The most frequent mistake learners make with 효과적이다 is confusing it with its close cousin, 효율적이다 (hyoyuljeog-ida). While both are translated as "effective" or "efficient" in many contexts, they have distinct meanings in Korean, just as they do in English. 효과적 focuses on the **output** (did you get the result?), whereas 효율적 focuses on the **ratio of input to output** (did you save time/money/energy while getting the result?).

Mistake 1: Confusing Effective vs. Efficient
Using '효과적' when you mean 'efficient.' If you want to say a car doesn't use much fuel, you should use '효율적' (efficient), not '효과적' (effective). Saying a car is '효과적' might imply it's good at being a car, but it doesn't describe its fuel consumption.
Mistake 2: Particle Errors
Learners often use the wrong particle before '효과적이다'. Remember to use -에 for the area of effect or -는 데 for the action of effect. Avoid using '-을/를' directly before it.

❌ 이 방법은 시간을 효과적이다.
✅ 이 방법은 효과적이다.
(Correction: You cannot use an object particle '시간을' with a descriptive verb like '효과적이다' without a linker.)

Another common error is using '효과적이다' to describe a person's character (e.g., "He is an effective person"). In English, we might say someone is an "effective leader," which translates well as '효과적인 리더'. However, calling someone just '효과적인 사람' sounds a bit robotic in Korean, as if the person is a tool. It is better to describe their **actions** or **methods** as effective, or use words like '유능하다' (competent).

❌ 공부를 효과적이다.
✅ 효과적으로 공부하다.
(Correction: Use the adverbial form '효과적으로' when modifying a verb like '공부하다'.)

Finally, avoid overusing it. While it's a great word, using it in every sentence can make your Korean sound like a textbook or a corporate manual. Sometimes simpler words like '좋다' (good) or '잘 듣다' (works well - usually for medicine) are more natural in casual conversation. For example, instead of '이 약은 효과적이에요', you might say '이 약 잘 들어요' when talking to a friend.

Inappropriate Contexts
Don't use it for emotional or aesthetic effectiveness. If a movie 'moved' you, don't say it was '효과적'. Instead, use '감동적이다' (moving/touching).

To truly master Korean, you need to know the alternatives to 효과적이다 and when to swap them out. Depending on whether you're talking about efficiency, validity, or sheer power, different words will provide more precision. Here is a breakdown of the most common synonyms and related terms.

효율적이다 (Efficient)
As discussed, this focuses on saving resources (time, effort, money). Use this for engines, work processes, or study schedules that maximize output with minimum input.
유효하다 (Valid/Effective in Law/Time)
This is used for coupons, contracts, or laws. If a ticket is 'effective until tomorrow,' you use '유효하다.' It implies a state of being legally or technically active.
강력하다 (Powerful/Strong)
When the 'effect' is very strong, you might use '강력하다.' For example, a '강력한 세제' (powerful detergent) is effective, but the word emphasizes its strength.

이 쿠폰은 이번 달 말까지 유효합니다.
(This coupon is valid/effective until the end of this month.)

In more casual settings, you'll hear 효과가 좋다 (The effect is good). This is the phrase people use most often when talking about medicine or a new skincare routine. It feels slightly less formal than '효과적이다'. Another great alternative for medicine is 잘 듣다 (works well). If you say '이 약 잘 들어요,' it means the medicine is very effective for you.

그의 방식은 매우 효율적이라서 일을 빨리 끝낼 수 있어요.
(His method is very efficient, so he can finish work quickly.)

For abstract concepts like 'persuasive,' you might use 설득력 있다 (to have persuasive power). While a speech can be '효과적', calling it '설득력 있다' specifically highlights why it was effective—it changed people's minds. Understanding these nuances allows you to choose the exact right word for the situation, making your Korean sound sophisticated and precise.

실질적이다 (Substantial/Practical)
Used when something has a real, practical effect rather than just being theoretical. '실질적인 도움' (practical help) is often '효과적인 도움'.
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按水平分级的例句

1

이 약은 정말 효과적이에요.

This medicine is really effective.

Simple present tense with -이에요.

2

이 방법은 효과적이다.

This method is effective.

Plain style ending.

3

그것은 효과적이지 않아요.

That is not effective.

Negative form -지 않아요.

4

효과적인 운동이에요.

It is an effective exercise.

Noun-modifying form 효과적인.

5

공부에 효과적이에요.

It is effective for studying.

Using -에 for target.

6

정말 효과적이었어요!

It was really effective!

Past tense -었어.

7

더 효과적인 것 없어요?

Is there anything more effective?

Comparative '더' (more).

8

이것은 별로 효과적이지 않다.

This is not very effective.

Adverb '별로' (not really).

1

비타민은 건강에 효과적입니다.

Vitamins are effective for health.

Formal polite -습니다.

2

아침 운동은 다이어트에 효과적이에요.

Morning exercise is effective for dieting.

Target particle -에.

3

이 앱은 단어 외우기에 효과적이다.

This app is effective for memorizing words.

Noun form of verb (외우기).

4

더 효과적인 방법을 찾고 싶어요.

I want to find a more effective method.

Desire form -고 싶다.

5

노래 부르기는 한국어 공부에 효과적이에요.

Singing songs is effective for studying Korean.

Subject marker -는/은.

6

따뜻한 차는 감기에 효과적입니다.

Warm tea is effective for a cold.

Formal polite style.

7

이 치약은 미백에 효과적이에요.

This toothpaste is effective for whitening.

Specific target '미백' (whitening).

8

어떤 공부법이 가장 효과적일까요?

Which study method would be most effective?

Question form -ㄹ까요.

1

시간을 관리하는 데 효과적인 팁을 알려주세요.

Please give me some effective tips for managing time.

-는 데 (in the act of).

2

이 광고는 젊은 층에게 매우 효과적이었다.

This advertisement was very effective for young people.

Target group -에게.

3

매일 꾸준히 하는 것이 가장 효과적입니다.

Doing it consistently every day is the most effective.

Nominalizer -는 것.

4

그 해결책은 생각보다 효과적이지 않았어요.

That solution wasn't as effective as I thought.

Comparison '생각보다' (than thought).

5

스트레스를 해소하는 데는 명상이 효과적이다.

Meditation is effective for relieving stress.

-는 데는 (as for the act of).

6

효과적인 의사소통을 위해 노력해야 합니다.

We must work hard for effective communication.

-위해 (for the sake of).

7

새로운 비누가 여드름 치료에 효과적일까요?

Will the new soap be effective in treating acne?

Future/Presumptive -ㄹ까요.

8

이 방법은 비용 면에서 아주 효과적입니다.

This method is very effective in terms of cost.

Aspect marker '면에서' (in terms of).

1

정부는 인플레이션을 억제하기 위한 효과적인 대책을 마련했다.

The government has prepared effective measures to curb inflation.

-기 위한 (intended for).

2

이 교육 프로그램은 실무 능력을 향상시키는 데 효과적이다.

This educational program is effective in improving practical skills.

-는 데 (in the process of).

3

시각 자료를 활용하는 것이 메시지 전달에 효과적입니다.

Utilizing visual materials is effective for delivering a message.

Subject -는 것.

4

그의 설득 방식은 논리적이라서 매우 효과적이었다.

His way of persuasion was very effective because it was logical.

Reason -라서 (because).

5

효과적인 다이어트를 위해서는 식단 조절이 필수적이다.

Dietary control is essential for an effective diet.

Essential -필수적이다.

6

이 치료법이 환자들에게 얼마나 효과적인지 조사 중입니다.

We are investigating how effective this treatment is for patients.

Indirect question -는지.

7

에너지 소비를 줄이는 효과적인 방법을 찾아야 한다.

We must find effective ways to reduce energy consumption.

Necessity -아야 한다.

8

사회적 거리두기는 감염병 확산 방지에 효과적이다.

Social distancing is effective in preventing the spread of infectious diseases.

Noun '방지' (prevention).

1

다각적인 접근 방식이 문제 해결에 가장 효과적이라는 점을 강조하고 싶습니다.

I would like to emphasize that a multifaceted approach is most effective for problem-solving.

-는 점 (the fact that).

2

신제품의 마케팅 전략이 타겟 시장에 효과적으로 침투했다.

The marketing strategy for the new product effectively penetrated the target market.

Adverbial form -적으로.

3

이 제도는 저출산 문제를 해결하는 데 실질적이고 효과적인 방안이 될 것입니다.

This system will be a substantial and effective measure to solve the low birth rate issue.

Future tense -ㄹ 것입니다.

4

전문가들은 이번 조치가 경제 회복에 효과적일지 회의적인 반응을 보였다.

Experts showed a skeptical reaction as to whether this measure would be effective for economic recovery.

Skepticism '회의적'.

5

언어 학습에 있어서 몰입 환경을 조성하는 것이 가장 효과적이다.

In language learning, creating an immersive environment is the most effective.

-에 있어서 (in/regarding).

6

심리 치료는 트라우마를 극복하는 데 매우 효과적인 수단이 될 수 있다.

Psychotherapy can be a very effective means of overcoming trauma.

Possibility -ㄹ 수 있다.

7

디지털 기술의 도입은 업무 효율성을 높이는 데 대단히 효과적이었다.

The introduction of digital technology was extremely effective in increasing work efficiency.

Adverb '대단히' (greatly).

8

갈등을 조정하는 데 있어 효과적인 대화 기법이 요구된다.

Effective communication techniques are required in mediating conflicts.

Passive form '요구된다'.

1

이번 연구는 해당 약물이 뇌세포 재생에 미치는 효과적인 기전을 규명했다.

This study identified the effective mechanism of the drug on brain cell regeneration.

Academic term '기전' (mechanism) and '규명하다' (identify).

2

기후 변화에 대응하기 위한 국제적인 공조가 효과적으로 이루어져야 한다.

International cooperation to respond to climate change must be carried out effectively.

Passive '이루어져야 한다'.

3

조직 내의 원활한 소통은 위기 상황에서 가장 효과적인 방어 기제로 작용한다.

Smooth communication within an organization acts as the most effective defense mechanism in crisis situations.

Psychological term '방어 기제' (defense mechanism).

4

이 정책의 효과적인 시행을 위해 범정부 차원의 노력이 수반되어야 합니다.

For the effective implementation of this policy, government-wide efforts must be accompanied.

Formal term '수반되다' (to be accompanied).

5

예술은 인간의 내면을 치유하는 데 있어 그 무엇보다 효과적인 매개체이다.

Art is a more effective medium than anything else in healing the human inner self.

Comparison '그 무엇보다' (more than anything).

6

해당 법안이 범죄 예방에 실질적으로 효과적인지에 대해 치열한 논쟁이 벌어졌다.

A fierce debate took place over whether the bill is substantially effective in preventing crime.

Indirect question -ㄴ지에 대해.

7

데이터 기반의 의사결정은 불확실한 시장 환경에서 효과적인 나침반 역할을 한다.

Data-driven decision making serves as an effective compass in an uncertain market environment.

Metaphor '나침반 역할' (role of a compass).

8

복지 사각지대를 해소하기 위한 효과적인 시스템 구축이 시급한 과제이다.

Establishing an effective system to eliminate welfare blind spots is an urgent task.

Formal term '시급한 과제' (urgent task).

常见搭配

효과적인 방법
매우 효과적이다
건강에 효과적이다
공부에 효과적이다
실질적으로 효과적이다
효과적인 대책
효과적으로 전달하다
효과적인 수단
효과적인 관리
비용 대비 효과적이다

常用短语

효과가 있다/없다

— To have or not have an effect. This is the most common way to talk about effectiveness in daily life.

이 약은 정말 효과가 있어요.

효과를 보다

— To see/experience the results or benefits of something. Used after trying a method or product.

다이어트로 효과를 좀 봤어요.

효과를 극대화하다

— To maximize the effect. Often used in business or fitness contexts.

학습 효과를 극대화하기 위해 복습을 하세요.

효과가 나타나다

— For the effect to appear or start showing. Used for medicine or long-term projects.

서서히 효과가 나타나고 있습니다.

효과를 발휘하다

— To demonstrate or exert its effect. Used when a skill or tool works in a specific moment.

그의 리더십이 위기에서 효과를 발휘했다.

일석이조의 효과
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