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B1 adjective 10 دقیقه مطالعه

効果的

مثال‌ها 効果的 در ۳۰ ثانیه
توضیح 効果的 in your Level:
At the A1 level, you are just starting your Japanese journey. You don't need to use 'kōkateki' in every sentence, but it's a great word to know for describing things that work well. Think of it as a more professional way to say 'good' (ii). For example, if you find a good way to study kanji, you can say it's 'kōkateki.' At this stage, focus on the basic pattern: [Noun] wa kōkateki desu. This means '[Noun] is effective.' You might see this word on posters or in simple advertisements. It's a 'na-adjective,' so remember that it behaves a bit like a noun. If you want to say 'an effective study,' you say 'kōkateki-na benkyō.' Just remember that 'kōka' means 'effect' and 'teki' makes it an adjective. It's a very useful word for expressing your opinion on tools, methods, or medicines in a simple but clear way. Don't worry about complex grammar yet; just focus on identifying the word and using it to say something is effective.
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As an A2 learner, you're beginning to describe your daily life and habits in more detail. 'Kōkateki' becomes very useful here because you can start talking about your routines. Are you trying a new exercise? Is it effective? You can say 'Kono undō wa kōkateki desu.' You should also start using the adverbial form 'kōkateki-ni' (effectively). For example, 'Kōkateki-ni jikan o tsukaitai' (I want to use time effectively). This level is about moving from simple descriptions to expressing goals and how you achieve them. You'll often see 'kōkateki' in health-related contexts, like 'kenkō ni kōkateki-na tabemono' (food that is effective for health). Notice the use of the particle 'ni' here to show what the food is effective *for*. Start looking for this word in simple news articles or on product labels. It’s a step up from the basic vocabulary of A1 and makes you sound more organized and thoughtful in your speech.
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At the B1 level, you are expected to handle more abstract topics and give reasons for your opinions. 'Kōkateki' is a key word for this. You might be asked to discuss the best way to learn a language or how to improve a business process. You should be able to distinguish between 'kōkateki' (effective) and 'kōritsuteki' (efficient). For example, 'This method is effective because I remember the words, but it's not efficient because it takes too much time.' This level of nuance is perfect for B1. You can also use 'kōkateki' in more complex sentence structures, such as 'Kōkateki-na hōhō o mitsukeru tame ni, iroiro tameshimasu' (In order to find an effective method, I try various things). You should feel comfortable using it in both formal and semi-formal settings. It’s a great word for presentations or when writing short essays about your hobbies or work. You are moving beyond just 'what' things are to 'how' and 'why' they work.
By the B2 level, you are likely using Japanese in professional or academic settings. 'Kōkateki' is essential for these environments. You should be able to use it to evaluate strategies, critique policies, and propose solutions. You'll encounter it in more advanced grammar patterns, such as 'kōkateki to wa ie-nai' (cannot be called effective) or 'yori kōkateki-na shudan' (a more effective means). You should also be aware of its synonyms like 'yūkō' (valid/effective) and 'yūeki' (beneficial) and know when to choose 'kōkateki' over them. For instance, in a business report, you might write about 'kōkateki-na kōkoku senryaku' (an effective advertising strategy). You should also be able to understand the word in fast-paced discussions or complex texts where the 'effect' being discussed might be psychological or social, not just physical. At B2, your usage of 'kōkateki' should reflect a deep understanding of cause and effect in various fields like psychology, economics, and science.
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At the C1 level, your understanding of 'kōkateki' should be near-native. You understand that the word isn't just about 'working' but implies a purposeful alignment between action and outcome. You can use it to discuss subtle nuances, such as the 'kōkateki-na' use of silence in a speech or the 'kōkateki-na' arrangement of elements in a piece of art. You are also familiar with related idioms and more obscure synonyms. You can navigate complex debates where the definition of 'effectiveness' itself might be questioned. For example, in a sociological context, you might discuss whether a certain social program is 'kōkateki' in the long term versus the short term. Your writing will use 'kōkateki' to build logical arguments, using it as a pivot point to discuss results and evidence. You are also sensitive to the register of the word, knowing that while it is common, overusing it can make your speech sound overly clinical or like a business consultant.
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At the C2 level, you have complete mastery over 'kōkateki' and its place within the Japanese language. You can use it with absolute precision in any context, from high-level academic writing to nuanced literary analysis. You understand the historical development of the kanji and how the concept of 'effectiveness' has evolved in Japanese thought. You can use the word to engage in philosophical discussions about the nature of success and the limits of purely 'effective' thinking in human life. You might use it to critique modern efficiency-driven culture, contrasting 'kōkateki' (result-oriented) with more holistic or humanistic approaches. Your ability to use the word is indistinguishable from a highly educated native speaker, and you can effortlessly switch between 'kōkateki' and its many synonyms to achieve the exact rhetorical effect you desire. At this level, the word is just one tool in a massive, sophisticated vocabulary that you use to express the most complex and subtle ideas.
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مثال‌ها

効果的 در ۳۰ ثانیه

  • 効果的 (kōkateki) means 'effective' and focuses on achieving a desired result.
  • It is a na-adjective, taking 'na' before nouns and 'ni' as an adverb.
  • Commonly used in business, medicine, education, and health contexts.
  • Often confused with 効率的 (efficient), which focuses on saving resources.
The Japanese word 効果的 (こうかてき, kōkateki) is a vital term for anyone looking to describe success, productivity, and the achievement of specific goals. At its core, it translates to "effective," but its usage in Japanese carries nuances that distinguish it from similar terms like efficiency or validity. The word is composed of three kanji: 効 (meaning merit, efficacy, or result), 果 (meaning fruit, reward, or consequence), and 的 (a suffix that transforms nouns into adjectives, similar to '-al' or '-ic' in English). When combined, they literally describe something that is "in the nature of producing a fruit-like result." This word is categorized as a na-adjective (形容動詞), meaning it requires the particle な (na) when preceding a noun and に (ni) when acting as an adverb.
Result-Oriented
The primary focus of 効果的 is the outcome. If a method or medicine achieves the desired end state, it is deemed kōkateki.
Na-Adjective Structure
Because it ends in 'teki', it follows specific grammatical rules, never taking the 'i' ending common in words like 'oishii'.
You will encounter this word in a vast array of contexts, from business strategy meetings where managers discuss the most effective way to reach a target audience, to medical settings where a doctor might describe the effectiveness of a new treatment plan. It is also common in educational contexts, where students seek the most effective study methods to pass rigorous exams. Unlike the word 'efficient' (効率的), which focuses on saving time or resources, 'effective' (効果的) focuses solely on whether the goal was actually met.

この新しい薬は、痛みを抑えるのに非常に効果的です。(This new medicine is very effective at suppressing pain.)

In the realm of self-improvement, you might hear people talking about 'kōkateki-na' exercise routines or 'kōkateki-ni' using their morning hours. It carries a positive, professional, and logical connotation. Furthermore, the word appears frequently in advertising. Companies want to convince you that their products are the most effective solution to your problems.

もっとも効果的なダイエット方法を探しています。(I am looking for the most effective diet method.)

In summary, 効果的 is your go-to word for anything that works as intended. Whether it is a marketing campaign, a study technique, or a medical intervention, if it produces the 'fruit' (果) of 'merit' (効), it is truly kōkateki.
Using 効果的 (kōkateki) correctly requires an understanding of its grammatical role as a na-adjective. In Japanese, adjectives are categorized into two main groups: i-adjectives and na-adjectives. Na-adjectives act more like nouns and require specific particles to connect to other words. To describe a noun directly, you must place な (na) between 効果的 and the noun. For example, 'an effective method' becomes 効果的な方法 (kōkateki-na hōhō). If you want to use it at the end of a sentence, you follow it with the copula だ (da) or the polite version です (desu).
Direct Description
Noun + は + 効果的だ/です。 (The [noun] is effective.)
Attributive Use
効果的な + Noun (An effective [noun])
Adverbial Use
効果的に + Verb (To [verb] effectively)
Let's look at the adverbial form. When you want to say you are doing something 'effectively,' you change な to に. For instance, 'to study effectively' is 効果的に勉強する (kōkateki-ni benkyō suru). This is crucial for expressing how an action is performed to maximize results.

時間を効果的に使うことが大切です。(It is important to use time effectively.)

Another common pattern involves the use of the particle に (ni) to indicate the area in which something is effective. For example, 'effective for health' is 健康に効果的 (kenkō ni kōkateki). This pattern is ubiquitous in health and fitness discussions. In more complex sentences, you might see 効果的 used with comparative words like もっと (motto - more) or 一番 (ichiban - most).

これが一番効果的な解決策だと思います。(I think this is the most effective solution.)

It is also worth noting that because 効果的 is a somewhat formal word, it is perfectly suited for written reports, presentations, and polite conversation. While you can use it with friends, it might sound a bit academic if used for very trivial things. For example, instead of saying a certain snack is 'effective' for hunger, a native speaker might just say 'onaka ga ippai ni naru' (it makes me full). Save 効果的 for methods, strategies, medicines, and techniques where a specific goal is being targeted.

SNSを効果的に活用して、商品を宣伝しましょう。(Let's utilize SNS effectively to promote the product.)

By mastering these patterns, you can express complex ideas about success and achievement with the same precision as a native speaker.
If you turn on a Japanese television, walk through a business district in Tokyo, or browse a Japanese bookstore, you will encounter 効果的 (kōkateki) almost immediately. Its presence is pervasive because modern Japanese society places a high value on methodology and results. In the world of television commercials (CM), 'kōkateki' is a buzzword. You'll hear it in ads for skincare products ('This cream is effective for wrinkles!'), supplements ('An effective way to get your vitamins!'), and cleaning supplies ('Effectively removes tough stains!'). It serves as a seal of quality and scientific backing.
Advertising
Used to emphasize the proven results of a product. It appeals to the consumer's desire for a solution that works.
Business Environments
Heard in meetings regarding KPIs, marketing strategies, and project management. It is a key term in 'PDCA' (Plan-Do-Check-Act) cycles.
In the workplace, your boss might ask you, 'Dō sureba motto kōkateki ni shigoto ga dekiru ka?' (How can we work more effectively?). Here, it isn't just about working hard; it's about working *smart*. Japanese business culture often involves long hours, so the shift toward 'kōkateki' methods is a common topic in modern corporate reform (hatarakikata kaikaku).

会議の時間を短縮するための効果的なルールを作りましょう。(Let's create effective rules to shorten meeting times.)

Education is another major domain. Test-prep books (sankōsho) are filled with this word. Titles like 'Effective English Learning Methods' or 'The Most Effective Way to Memorize Kanji' are bestsellers. Students are constantly looking for the 'kōkateki-na' path to passing the entrance exams for top universities. You will also hear it in news broadcasts and documentaries. When discussing government policies, experts will debate whether a certain tax hike or subsidy is 'kōkateki' in stimulating the economy. It is a word that demands evidence and logical reasoning.

その政策は、少子化対策として効果的だとは言えません。(That policy cannot be called effective as a measure against the declining birthrate.)

Finally, in the fitness world, trainers use it constantly. When you're at a gym in Japan, the trainer will point to a specific muscle and say, 'Kore wa koko ni kōkateki desu' (This is effective for this [muscle]). It helps the trainee focus their mind on the intended result of the exercise. Thus, from the boardroom to the weight room, 効果的 is a word that signals a focus on meaningful progress.
While 効果的 (kōkateki) is a straightforward word, English speakers often trip up on its specific nuances compared to other Japanese words that also translate to 'effective' or 'useful.' The most common confusion arises between 効果的 (kōkateki) and 効率的 (kōritsuteki). While they look similar, their meanings are distinct.
効果的 (Effective)
Focuses on the outcome. Did you achieve the goal? If yes, it was effective. (Example: Killing a fly with a sledgehammer is effective but not efficient.)
効率的 (Efficient)
Focuses on the process and resources. Did you save time, money, or energy? (Example: Killing a fly with a flyswatter is both effective and efficient.)
Another frequent error is confusing 効果的 with 有効 (yūkō). 有効 usually means 'valid' or 'available' in a legal or technical sense. For instance, you would use 有効 for a passport that hasn't expired or a coupon that is still usable. If you say a medicine is 'yūkō,' it sounds like you are saying the medicine is 'valid' (as in, not expired), whereas 'kōkateki' means the medicine actually cures the illness.

❌ この切符は効果的です。(This ticket is effective.) -> This is wrong. You should use 有効 (yūkō).

✅ この切符は明日まで有効です。(This ticket is valid until tomorrow.)

Learners also sometimes forget that 効果的 is a na-adjective. They might try to use it like an i-adjective (e.g., kōkateki-i) or forget the 'na' when modifying a noun. Remember: it's always 効果的な方法, never 効果的方法. Lastly, be careful with the word 効く (kiku). 効く is a verb that means 'to be effective' or 'to work.' It is often more natural in casual conversation. For example, 'Kore, kiku yo!' (This works!) is more common than 'Kore wa kōkateki desu' when recommending a headache medicine to a friend. 効果的 is slightly more formal and descriptive. Using the formal word in a very casual setting can make you sound like a textbook or a salesperson.

このサプリメントは、疲れに効きます。(This supplement works for fatigue.) -> More natural in daily speech than 'kōkateki desu'.

Avoiding these pitfalls will make your Japanese sound much more natural and precise.
To truly master 効果的 (kōkateki), it helps to understand its place among its synonyms and related terms. Japanese has a rich vocabulary for describing utility and success, and choosing the right word can change the tone of your sentence significantly.
効率的 (kōritsuteki)
Efficient. Use this when the focus is on maximizing output while minimizing input (time, money, effort). 効率的なシステム (An efficient system).
有効 (yūkō)
Valid or Effective (in a functional/legal sense). Often used for measures, rules, or documents. 有効な対策 (An effective measure).
有益 (yūeki)
Beneficial or Profitable. Use this when something is helpful or provides an advantage, even if it doesn't directly solve a problem. 有益な情報 (Beneficial information).
If you want to emphasize that something is 'fruitful' or 'productive,' you might use 実りのある (minori no aru). This is a more poetic way to say something was effective, often used for meetings, experiences, or discussions.

今日はとても実りのある話し合いができました。(We had a very fruitful/productive discussion today.)

In the context of medicine or physical impact, the verb 効く (kiku) is the most direct alternative. It's often used in the phrase 'Kime-te ni kiku' (to be a decisive blow/move). For something that is 'extraordinarily effective,' you can use 抜群の (batsugun no) or 劇的な (gekiteki na - dramatic/drastic). When discussing design or visual impact, you might use 印象的 (inshōteki - impressive/memorable) or 目立つ (medatsu - to stand out). While an 'effective' design achieves its goal, an 'impressive' design sticks in the mind.

このポスターは色の使い方が非常に効果的です。(The use of colors in this poster is very effective.)

Finally, there is the term 適切 (tekisetsu), which means 'appropriate' or 'proper.' Often, the most 'effective' way to do something is simply to do it 'appropriately.' Using 適切 suggests a sense of rightness and balance that 効果的 might lack. By expanding your vocabulary with these alternatives, you can describe the 'effectiveness' of anything with pinpoint accuracy.
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مثال‌ها بر اساس سطح

1

この勉強法は効果的です。

This study method is effective.

Subject + は + Adjective + です。

2

効果的な薬を飲みました。

I took an effective medicine.

Adjective + な + Noun.

3

それは効果的ではありません。

That is not effective.

Negative form of na-adjective.

4

効果的な方法を教えてください。

Please tell me an effective method.

Using 'te-kudasai' for a request.

5

このクリームは効果的ですか？

Is this cream effective?

Question form with 'ka'.

6

効果的な練習をしましょう。

Let's do effective practice.

Using 'mashō' for 'let's'.

7

とても効果的なツールです。

It is a very effective tool.

Using 'totemo' to modify the adjective.

8

効果的だと聞きました。

I heard that it is effective.

Using 'to kikimashita' to report information.

1

時間を効果的に使いたいです。

I want to use my time effectively.

Changing 'na' to 'ni' for adverbial use.

2

野菜を食べるのは、健康に効果的です。

Eating vegetables is effective for health.

Noun + に + 効果的 (effective for...).

3

もっと効果的なやり方がありますか？

Is there a more effective way?

Using 'motto' for comparison.

4

この本は、日本語の学習に効果的です。

This book is effective for learning Japanese.

Focus on the target of effectiveness.

5

効果的に運動するために、ジムに行きます。

I go to the gym to exercise effectively.

Using 'tame ni' for purpose.

6

効果的なダイエットを始めました。

I started an effective diet.

Adjective modifying the object of 'hajimemashita'.

7

この方法はあまり効果的ではありませんでした。

This method was not very effective.

Past negative form.

8

効果的なプレゼンの練習をしています。

I am practicing for an effective presentation.

Modifying a compound noun 'presentation practice'.

1

一番効果的な解決策を話し合いましょう。

Let's discuss the most effective solution.

Using 'ichiban' for superlative.

2

新しい広告は、売上を上げるのに効果的だった。

The new advertisement was effective in increasing sales.

Using 'no ni' to mean 'in/for doing something'.

3

効果的にストレスを解消する方法を知っていますか？

Do you know a way to effectively relieve stress?

Adverbial form + verb + noun.

4

この薬は痛みを抑えるのに非常に効果的だと言われている。

It is said that this medicine is very effective at suppressing pain.

Using 'to iwarete iru' for general belief.

5

効果的なチームワークがプロジェクトの成功には欠かせない。

Effective teamwork is essential for the success of the project.

Abstract noun modification.

6

彼は時間を効果的に配分するのが上手だ。

He is good at allocating his time effectively.

Using 'no ga jōzu' for skill.

7

効果的な質問をすることで、相手の考えを引き出せる。

By asking effective questions, you can draw out the other person's thoughts.

Using 'koto de' to indicate means/method.

8

その政策が効果的かどうか、まだ分からない。

We don't know yet whether that policy is effective or not.

Using 'ka dō ka' for 'whether or not'.

1

効果的なマーケティング戦略を立てる必要があります。

It is necessary to develop an effective marketing strategy.

Professional context usage.

2

このシステムを導入すれば、業務がより効果的に進むだろう。

If we introduce this system, the work will proceed more effectively.

Using 'ba' conditional and 'darō' conjecture.

3

視覚的な資料は、情報を伝えるのに非常に効果的です。

Visual materials are very effective for conveying information.

Comparing 'shikakuteki' and 'kōkateki'.

4

効果的なリーダーシップが、組織の成長を加速させる。

Effective leadership accelerates the growth of an organization.

Causative verb usage.

5

今回のキャンペーンは、ターゲット層に対して効果的ではなかった。

This campaign was not effective against the target demographic.

Using 'ni taishite' for 'towards/against'.

6

効果的に資源を活用することが、持続可能な社会につながる。

Effectively utilizing resources leads to a sustainable society.

Gerund phrase as a subject.

7

もっとも効果的な治療法を選択することが重要だ。

It is important to select the most effective treatment method.

Superlative in a formal context.

8

心理学的なアプローチは、教育現場で効果的に機能している。

Psychological approaches are functioning effectively in educational settings.

Adverbial use with 'kinō suru' (to function).

1

その論文は、環境問題に対する効果的なアプローチを提案している。

That paper proposes an effective approach to environmental issues.

Academic register.

2

沈黙を効果的に用いることで、スピーチに説得力を持たせる。

By using silence effectively, you give your speech persuasiveness.

Nuanced usage of the word.

3

効果的なリスク管理がなければ、投資はギャンブルと同じだ。

Without effective risk management, investing is the same as gambling.

Using 'nakereba' for 'if there is not'.

4

このデザインは、余白を効果的に使って高級感を演出している。

This design uses white space effectively to create a sense of luxury.

Artistic/Design context.

5

効果的なコミュニケーションは、単に言葉を交わすことではない。

Effective communication is not simply exchanging words.

Philosophical/Definitional use.

6

政府は、インフレを抑制するための効果的な手段を模索している。

The government is searching for effective means to curb inflation.

Using 'mosaku suru' (to grope for/search).

7

効果的なフィードバックは、部下のやる気を引き出す。

Effective feedback draws out the motivation of subordinates.

Management terminology.

8

既存の枠組みを効果的に活用しつつ、新しいアイデアを取り入れる。

While effectively utilizing existing frameworks, we incorporate new ideas.

Using 'tsutsu' for 'while doing'.

1

その劇作家は、照明を効果的に配することで登場人物の心理を浮き彫りにした。

The playwright highlighted the characters' psychology by effectively arranging the lighting.

Literary/Artistic analysis.

2

多面的な視点から、その政策の長期的かつ効果的な影響を分析する。

Analyze the long-term and effective impact of that policy from multifaceted perspectives.

Highly formal/Academic.

3

効果的な統治とは、単なる力の行使ではなく、国民の合意に基づくものである。

Effective governance is not merely the exercise of power, but is based on the consensus of the citizens.

Political philosophy.

4

メタファーを効果的に織り交ぜることで、散文に詩的な奥行きを与えている。

By effectively weaving in metaphors, he gives the prose a poetic depth.

Stylistic analysis.

5

効果的な交渉術を駆使して、困難な合意を勝ち取った。

By making full use of effective negotiation skills, they won a difficult agreement.

Using 'kushi suru' (to make full use of).

6

都市計画において、公共スペースを効果的に配置することは市民の幸福に直結する。

In urban planning, effectively placing public spaces is directly linked to the well-being of citizens.

Complex noun phrases.

7

効果的な教育システムを構築するためには、社会全体の構造的変革が必要だ。

In order to build an effective educational system, a structural transformation of society as a whole is necessary.

Sociological analysis.

8

情報の非対称性を効果的に解消することが、市場の健全な発展を促す。

Effectively resolving information asymmetry promotes the healthy development of the market.

Economic terminology.

ترکیب‌های رایج

効果的な方法
効果的な対策
効果的な薬
効果的に使う
効果的に活用する
非常に効果的
最も効果的
効果的な宣伝
効果的なプレゼン
健康に効果的

عبارات رایج

効果的だと言われている

— Used to express a general consensus or scientific claim about something's effectiveness.

このハーブは安眠に効果的だと言われている。(This herb is said to be effective for a good night's sleep.)

効果的な一撃

— A phrase used in sports or arguments to describe a decisive or powerful move.

彼の反論は効果的な一撃となった。(His rebuttal was an effective blow.)

効果的に機能する

— Used to describe a system or plan that is working exactly as it was intended to.

新しいルールが効果的に機能している。(The new rules are functioning effectively.)

効果的な配置

— Refers to the strategic positioning of items, people, or resources.

家具の効果的な配置を考える。(Think about the effective placement of furniture.)

効果的な役割を果たす

— To play an important and successful role in achieving something.

彼はチームの中で効果的な役割を果たした。(He played an effective role in the team.)

効果的な手段

— A way or tool that is successful in reaching a goal.

問題解決のための効果的な手段。(An effective means for problem-solving.)

効果的な演出

— Used in theater, film, or events to describe successful staging or presentation.

照明による効果的な演出。(Effective staging through lighting.)

効果的なアプローチ

— A successful way of starting or dealing with a task or problem.

顧客への効果的なアプローチ。(An effective approach to customers.)

効果的なアドバイス
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محتوای مرتبط

این کلمه در زبان‌های دیگر

有成效 Chino
مفید بود؟

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