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B1 adjective Neutre 3 min de lecture

効果的な

koukateki na kōkateki na
Entraîne-toi

Overview

The Japanese word '効果的な' (kōkateki na) is an adjective that translates most accurately to 'effective' or 'efficient' in English. It is a 'na-adjective' (形容動詞 - keiyōdōshi), which means it behaves like a noun when directly modifying another noun by adding 'な' (na) after it (e.g., 効果的な方法 - kōkateki na hōhō, meaning 'effective method'). When it predicates a sentence or phrase, it typically takes 'だ' (da) or 'です' (desu) after it (e.g., それは効果的だ - sore wa kōkateki da, meaning 'That is effective').

Nuances and Usage:

  1. 1Effectiveness (効果 - kōka): The core meaning revolves around achieving a desired result or having a significant impact. If something is 効果的な, it successfully brings about the intended outcome. For instance, if a marketing campaign is 効果的な, it means it has successfully increased sales or brand awareness.
  • Example: この薬は風邪に効果的です。(Kono kusuri wa kaze ni kōkateki desu.) - This medicine is effective for colds.
  • Example: 新しいシステムは作業効率を上げるのに効果的だ。(Atarashii shisutemu wa sagyō kōritsu o ageru no ni kōkateki da.) - The new system is effective in increasing work efficiency.
  1. 1Efficiency (効率 - kōritsu): While '効果的な' can imply efficiency, it's not its primary meaning. When something is efficient, it means it achieves results with minimal waste of time, effort, or resources. While an effective solution might also be efficient, it's not a given. If the focus is purely on efficiency, '効率的な' (kōritsuteki na) is a more precise term.
  • Example: 効率的な方法で仕事を片付ける。(Kōritsuteki na hōhō de shigoto o katazukeru.) - To finish the work in an efficient way.
  1. 1Contextual Differences: The specific nuance of '効果的な' often depends on the context. Consider the difference between 'effective communication' (効果的なコミュニケーション - kōkateki na komyunikēshon) and 'efficient communication' (効率的なコミュニケーション - kōritsuteki na komyunikēshon). The former emphasizes that the communication successfully conveys the message and achieves understanding, while the latter focuses on doing so with minimal time or effort.

**Synonyms and Related Terms:**

  • 有効な (yūkō na): Also means 'effective' or 'valid.' Often used in more formal or legal contexts, or when referring to something having a legitimate effect (e.g., 有効な期間 - yūkō na kikan, 'valid period').
  • 実用的な (jitsuyōteki na): Means 'practical' or 'useful.' While practical things can be effective, this term emphasizes usability and real-world application.
  • 能率的な (nōritsuteki na): Another term for 'efficient,' often used in the context of human labor or machinery.

In summary, '効果的な' is a versatile adjective that primarily denotes the successful achievement of a goal or a strong impact. While it can sometimes overlap with the concept of efficiency, it's important to differentiate it from '効率的な' when the core meaning is specifically about optimizing resource usage. Its usage is widespread in various contexts, from business and technology to daily life and personal development, highlighting its importance in expressing the concept of successful outcome.

Exemples

1

効果的な戦略を立てる。

Business

Develop an effective strategy.

2

この方法は効果的です。

General

This method is effective.

3

より効果的な学習方法を見つける。

Education

Find a more efficient way to study.

4

効果的なプレゼンテーションをするにはどうすればよいですか？

Public Speaking

How can I give an effective presentation?

5

彼は効果的なリーダーです。

Leadership

He is an effective leader.

Collocations courantes

効果的な方法
効果的な戦略
効果的な学習
効果的な対策

Souvent confondu avec

効果的な vs 効率的な
Both mean 'efficient,' but 効果的な (kōkateki na) emphasizes producing a desired effect or result, while 効率的な (kōritsuteki na) emphasizes performing well with the least waste of time and effort.
効果的な vs 有効な
Both mean 'effective,' but 効果的な (kōkateki na) is generally used for actions or methods, whereas 有効な (yūkō na) can also refer to something being valid or in effect (e.g., 'valid ticket').

Modèles grammaticaux

効果的なN Nを効果的にする より効果的な

Comment l'utiliser

Notes d'usage

'効果的な' (kokateki na) is an adjective that means 'effective' or 'efficient.' It is typically used to describe a method, plan, or action that produces a desired outcome or achieves a goal with minimal waste of resources. It often precedes a noun, such as '効果的な方法' (kokateki na hōhō, effective method) or '効果的な戦略' (kokateki na senryaku, effective strategy). While similar to '効率的な' (kōritsu-teki na, efficient), '効果的な' focuses more on the achievement of the result, whereas '効率的な' emphasizes doing something well with minimal effort or time. Therefore, something can be efficient but not effective, and vice-versa, though often they go hand-in-hand.

Erreurs courantes

One common mistake is confusing '効果的な' (kouka-teki na) with '効率的な' (kouritsu-teki na). While both can be translated as 'effective' or 'efficient' in English, '効果的な' focuses on achieving the desired result or impact, whereas '効率的な' emphasizes doing something with minimal waste of time, effort, or resources. For example, a '効果的な' marketing campaign might reach a lot of people and generate sales, while a '効率的な' one might achieve those sales with a smaller budget or fewer staff members. Another mistake can be misusing the 'な' adjective form; remember it modifies nouns directly (e.g., 効果的な方法 - effective method), and for adverbial use, it becomes '効果的に' (e.g., 効果的に使う - to use effectively).

Astuces

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Use in formal and informal contexts

'効果的な' (kokateki na) can be used in both formal and informal situations, making it a versatile adjective. For example, '効果的な学習方法' (kokateki na gakushū hōhō) means 'effective learning methods,' and '効果的なプレゼンテーション' (kokateki na purezentēshon) means 'an effective presentation.' Its adaptability allows it to fit into various conversational and written contexts without sounding out of place.
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Distinguish from similar terms

While '効果的な' means 'effective' or 'efficient,' it's important to distinguish it from similar terms like '有効な' (yūkō na) which also means 'effective' or 'valid,' and '効率的な' (kōritsu-teki na) which means 'efficient' in terms of productivity. '効果的な' emphasizes producing a desired result, while '有効な' often implies being legitimate or having a proper effect, and '効率的な' focuses on doing something with minimal waste of resources. Choosing the right word depends on the specific nuance you want to convey.
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Common collocations and phrases

'効果的な' frequently appears in specific phrases. For instance, '効果的な解決策' (kokateki na kaiketsusaku) means 'effective solution,' '効果的な戦略' (kokateki na senryaku) means 'effective strategy,' and '効果的なコミュニケーション' (kokateki na komyunikēshon) means 'effective communication.' Recognizing these common collocations will help you use the word more naturally and accurately in your Japanese conversations and writing.

Origine du mot

From Middle Chinese 效 (MC ghæwH, “result, effect”) + 果 (MC kwɑX, “fruit, result”) + 的 (MC dek, “-ish, -like”) + な (na, adnominal particle, indicating an adjective). The combination 效果 (MC ghæwH kwɑX) appears in Chinese texts from at least the Tang dynasty. The suffix 的 was productive in forming adjectives in Middle Chinese and was adopted into Japanese to create na-adjectives. The な particle is a standard component of na-adjectives in modern Japanese. The word as a whole, 効果的な (kōkateki na), is a modern Japanese construct, likely formed during the Meiji period (1868-1912) as part of a broader effort to translate Western concepts and scientific terminology into Japanese, utilizing existing kanji combinations and grammatical structures to express new ideas. It directly translates to 'effective' or 'efficient' by combining 'effect/result' (効果) with the adjectival suffix 'な' (na) to describe something as 'being of effect' or 'having results'.

Contexte culturel

In Japanese culture, words like '効果的な' (kokateki na) are often used in professional and academic settings. Efficiency and effectiveness are highly valued in business and daily life, reflecting a societal emphasis on productivity and meticulousness. When discussing solutions or methods, using '効果的な' implies a well-thought-out approach that yields desired results. It can also appear in self-improvement contexts, such as '効果的な学習法' (kokateki na gakushū-hō, effective study methods), highlighting a cultural drive for continuous improvement and mastery.

Astuce mémo

Visualize a 'kouka-teki' solution or outcome. Break down the word: 'kouka' (effect/result) and '-teki' (suffix for adjectives, like '-ive' in English). So, it's something that brings about a good effect or result.

Questions fréquentes

4 questions
効果的な (kōkateki na) is a Japanese adjective that translates to 'effective' or 'efficient' in English. It describes something that produces the desired result or works well without wasting time or resources.
Certainly! You could say: '効果的な学習方法を見つけることは、学業成績を向上させるために重要です。' (Kōkateki na gakushū hōhō o mitsukeru koto wa, gakugyō seiseki o kōjō saseru tame ni jūyō desu.) This means: 'Finding effective study methods is important for improving academic performance.'
Yes, there are a few synonyms depending on the nuance you want to convey. Some common ones include 効率的な (kōritsuteki na), which emphasizes 'efficient' or 'productive,' and 有効な (yūkō na), which also means 'effective' or 'valid.' The choice often depends on the specific context.
That's a great question! While both can be translated as 'effective' or 'efficient,' 効果的な (kōkateki na) focuses more on achieving the desired outcome or result. On the other hand, 効率的な (kōritsuteki na) emphasizes performing a task with minimal waste of time, effort, or resources, regardless of whether the ultimate goal is achieved. So, something can be efficient but not necessarily effective if it doesn't lead to the intended result.

Teste-toi

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この薬は[ ]な治療法です。

Correct ! Pas tout à fait. Rponse correcte :
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彼は[ ]な方法で問題を解決しました。

Correct ! Pas tout à fait. Rponse correcte :
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もっと[ ]な学習方法を見つけるべきです。

Correct ! Pas tout à fait. Rponse correcte :

Score : /3

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