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B2 noun #4,500 الأكثر شيوعاً 9 دقيقة للقراءة

実効性

jikkousei الأكثر شيوعاً #4,500

تدرّب عليها أمثلة ملاحظات ونصائح 実効性 في 30 ثانية

الشرح 実効性 in your Level:

At the A1 level, the word '実効性' (jikkōsei) is quite advanced, but you can think of it as a very grown-up way to say 'Does it really work?' In basic Japanese, you learn 'kōka' (effect) or 'kikimasu' (to work/be effective). 'Jikkōsei' is like saying 'real-world power.' Imagine you have a rule in a game. If everyone follows the rule, the rule has 'jikkōsei.' If everyone ignores the rule, it has no 'jikkōsei.' Even though you won't use this word yourself yet, you might see it in newspapers. Just remember: 'Jitsu' means 'real,' and 'Kō' means 'effect.' So it's a 'real effect.' For a beginner, just knowing that this word is about things actually working in real life is enough. You don't need to use it in daily conversation, but keep it in the back of your mind for when you read serious news about Japan.

سجّل مجاناً لقراءة الشرح الكامل

At the A2 level, you are starting to see more compound kanji words. '実効性' is a noun used to talk about plans or rules. You might hear it in a simple news report about a new school rule or a city law. While you would normally use 'kōka ga aru' (it is effective) to describe something, 'jikkōsei' is used when people are being serious about whether a plan is actually going to succeed. For example, if a teacher makes a rule that 'no one can use phones,' but students still use them, a reporter might say the rule lacks 'jikkōsei.' It's a useful word to recognize when you are reading about society. You can remember it as: 'Is this plan just a dream, or is it real (実) and effective (効)?' It's a step up from basic vocabulary and helps you understand formal Japanese.

سجّل مجاناً لقراءة الشرح الكامل

At the B1 level, you should begin to distinguish between different types of 'effectiveness.' You already know 'kōka' (effect) and 'yūkō' (valid/effective). '実効性' (jikkōsei) is specifically about 'practical effectiveness' or 'viability.' It is very common in business and news. When a company starts a new project, they don't just ask 'Is it a good idea?' they ask about its 'jikkōsei'—can we actually do it, and will it produce the results we want? You will often see it with the verb 'takameru' (to increase) or 'kakuho suru' (to ensure). For example, 'jikkōsei o takameru' means to make a plan more likely to work in reality. If you are writing a short essay about a social problem, using 'jikkōsei' will make your Japanese sound much more professional and mature.

سجّل مجاناً لقراءة الشرح الكامل

At the B2 level, '実効性' is an essential part of your vocabulary. You are expected to understand and use it in formal discussions, business presentations, and essays. It refers to the degree to which a measure or law is effective in achieving its intended purpose in the real world. At this level, you should be able to use collocations like '実効性に欠ける' (lacks effectiveness) or '実効性を疑問視する' (to doubt the effectiveness). You should also understand the nuance that separates it from '有効性' (yūkōsei). While '有効性' might refer to the theoretical validity or clinical efficacy of something, '実効性' is about the 'execution' (jikkō) and whether the system as a whole works. In a B2 level discussion about environmental policy, you would use '実効性' to talk about whether carbon taxes actually lead to lower emissions in practice.

At the C1 level, you should have a nuanced command of '実効性' and be able to use it in complex legal, political, or academic contexts. You understand that '実効性' is often the focal point of debates regarding international law, where the 'normative power' of a treaty is weighed against its 'practical effectiveness' in the absence of a global enforcement body. You can use phrases like '実効性を担保する' (to guarantee effectiveness) or '実効支配' (effective/de facto control) with precision. In a professional setting, you might analyze the '実効性' of corporate governance structures or compliance programs, looking at how cultural factors influence the actual implementation of formal rules. Your usage should reflect an understanding that '実効性' is not just about results, but about the integrity of the process that leads from policy to outcome.

سجّل مجاناً لقراءة الشرح الكامل

At the C2 level, '実効性' is a tool for deep philosophical and systemic analysis. You can discuss the 'practical effectiveness' of legal systems in terms of 'legal realism' versus 'legal formalism.' You might critique the '実効性' of social contracts in the face of rapid technological change, or explore how '実効性' is constructed through discourse and institutional power. At this level, you are comfortable using the word in high-level academic writing or when negotiating complex international agreements. You understand its relationship to concepts like 'legitimacy' and 'sovereignty.' Your ability to use '実効性' allows you to articulate the gap between institutional ideals and the 'material reality' of their application, providing sophisticated critiques of policy frameworks and organizational strategies in native-level Japanese.

سجّل مجاناً لقراءة الشرح الكامل

تدرّب عليها أمثلة ملاحظات ونصائح

実効性 في 30 ثانية

実効性 (jikkōsei) is a formal noun meaning 'practical effectiveness' or 'efficacy,' focusing on real-world results rather than theoretical ideas.
It is frequently used in news, business, and legal contexts to evaluate if policies, laws, or plans actually work when implemented.
Commonly paired with verbs like 'takameru' (to heighten), 'kakuho suru' (to ensure), or 'kakeru' (to lack) to describe the status of a system.
Distinguish it from 'efficiency' (kōritsu) or 'general effect' (kōka); it specifically targets the viability and execution of a framework.

The Japanese word 実効性 (じっこうせい - Jikkōsei) is a sophisticated noun that translates to "practical effectiveness," "efficacy," or "actual viability." While the English word "effectiveness" covers a broad range of meanings, 実効性 specifically focuses on whether a plan, policy, law, or measure actually works in the real world rather than just looking good on paper. It is a compound word consisting of 実 (jitsu - reality/truth), 効 (kō - effect/benefit), and 性 (sei - nature/quality). When you use this word, you are questioning or affirming the link between an abstract intention and its concrete results.

Real-World Application: In business and politics, discussions often revolve around whether a new regulation has the 'teeth' to be enforced. If a rule exists but no one follows it and there are no penalties, it lacks 実効性.

新しい環境規制の実効性を高めるためには、厳格な監視体制が必要です。 (To increase the practical effectiveness of the new environmental regulations, a strict monitoring system is necessary.)

This word is extremely common in Japanese news media, legal documents, and corporate strategy meetings. It is rarely used in casual conversation between friends unless they are discussing a serious social issue or a complex project. For example, if you suggest a diet plan to a friend, you wouldn't usually ask about its 実効性; you would use simpler words like 本当に効くの？ (Does it really work?). However, in a professional context, assessing the 実効性 of a marketing campaign is standard procedure.

Nuance Comparison: Unlike '有効性' (yūkōsei - validity/effectiveness), which often refers to whether something is 'valid' or 'useful' in a general sense, '実効性' specifically targets the 'execution' aspect. A medicine has 有効性 (efficacy in a lab), but a policy has 実効性 (efficacy in society).

その法案は、罰則規定がないため実効性に欠けると批判されている。 (The bill is criticized for lacking practical effectiveness because it has no penalty clauses.)

Understanding this word allows you to participate in high-level Japanese discourse. It signals that you are looking beyond the surface-level goals and considering the logistical and practical hurdles of implementation. In the context of the UN or international treaties, 実効性 is the keyword used to debate whether sanctions will actually stop a conflict or just remain symbolic gestures.

Grammatical Note: It is almost always used with verbs like 高める (takameru - to heighten), 確保する (kakuho suru - to ensure), 疑問視する (gimonshi suru - to doubt), or 欠ける (kakeru - to lack).

計画の実効性を担保するために、予算を増額した。 (To guarantee the practical effectiveness of the plan, the budget was increased.)

Using 実効性 correctly requires pairing it with the right verbs and particles. Since it is a formal noun, it often appears in 'Noun + の + 実効性' structures or as the subject of a sentence discussed in academic or professional settings. The most common patterns involve discussing whether something has effectiveness, lacks it, or how to improve it.

Common Pattern: ~の実効性を高める: Meaning 'to heighten/increase the effectiveness of...'. This is used when you have a plan but need to make it stronger.

政府はサイバーセキュリティ対策の実効性を高める新法を導入した。 (The government introduced a new law to increase the effectiveness of cybersecurity measures.)

Another frequent usage is 実効性を確保する (kakuho suru), which means 'to ensure' or 'to secure' effectiveness. This is often used in legal contexts where the focus is on making sure a law isn't just a 'dead letter' (a law that exists but is not enforced).

Common Pattern: 実効性が問われる: Meaning 'effectiveness is being questioned/called into account.' This is very common in news headlines when a new policy is met with skepticism.

新しい経済制裁の実効性が問われている。 (The practical effectiveness of the new economic sanctions is being called into question.)

When discussing personal habits or small-scale problems, 実効性 might sound too heavy. For example, if you want to say a study method is effective, you would say 効果的 (kōkateki). However, if you are discussing the system of a school and whether the rules actually reduce bullying, 実効性 is the perfect word because it addresses the systemic and practical outcome of the rules.

このマニュアルは現場での実効性を重視して作成された。 (This manual was created with an emphasis on practical effectiveness in the field.)

Negative Forms: '実効性がない' (no effectiveness) or '実効性が低い' (low effectiveness). These are direct ways to state that something is failing to produce results.

In summary, use 実効性 when you want to sound analytical and objective about how well a system or plan operates in reality. It shifts the focus from 'Does this look good?' to 'Does this actually work?'

You will encounter 実効性 primarily in formal environments. If you watch the NHK evening news or read a Japanese newspaper like the Asahi Shimbun or Nikkei, you will see it almost daily. It is a staple of political commentary and economic analysis. For instance, when the Bank of Japan changes its monetary policy, analysts will debate the 実効性 of those changes on inflation.

In the Workplace: During a 'kaigi' (meeting), a manager might say, 'That idea is interesting, but what about its 実効性?' They are asking for a reality check—how will we implement it, and will it actually bring in profit or solve the problem?

「その提案は、コスト面での実効性が不透明です。」 ("The practical effectiveness of that proposal in terms of cost remains unclear.")

In legal and administrative contexts, the word is used to describe whether a regulation has the power to compel behavior. A 'gentleman's agreement' (shinshi kyōtei) often lacks 実効性 because there is no legal recourse if someone breaks it. Conversely, a contract with heavy penalties has high 実効性. You might hear this in a documentary about climate change, where experts argue that the Paris Agreement needs more 実効性 to be truly successful.

Academic papers in sociology, law, and political science also use this word extensively. It is used to measure the gap between 'law on the books' and 'law in action.' If you are studying for the JLPT N1 or N2, or the EJU (Examination for Japanese University Admission), you will almost certainly see this word in the reading comprehension section, usually in a passage discussing social systems or organizational management.

組織改革の実効性を裏付けるデータが必要です。 (Data is needed to support the practical effectiveness of the organizational reform.)

News Keywords: Terms like '実効性のある対策' (effective measures) and '実効性を疑う' (to doubt the effectiveness) are standard 'newspeak' in Japan.

Finally, in the context of international relations, 実効支配 (jikkō shihai) is a related term meaning 'effective control' or 'de facto control' over a territory. While slightly different, it shares the root concept of 'actual, real-world power' as opposed to just 'legal claim.'

One of the most frequent mistakes learners make is confusing 実効性 with 効率 (kōritsu). While both involve the kanji 効 (effect), 効率 refers to 'efficiency'—how much output you get for a certain amount of input (time, money, effort). 実効性 doesn't care about how fast or cheap something is; it only cares about whether it works at all in reality.

Mistake: Using 実効性 for personal skills: Incorrect: 彼は実効性のあるプログラマーだ。 (He is an effective programmer.)
Correct: 彼は能率の良いプログラマーだ。 (He is an efficient programmer.) or 彼は腕の良いプログラマーだ。 (He is a skilled programmer.)

Wrong: この薬は実効性が高い。
Right: この薬は有効性が高い。 (This medicine is highly effective/valid.)

Another error is using it where 効果 (kōka) would be more natural. 効果 is a general word for 'effect' or 'result.' You use 効果 when talking about the result of a single action (e.g., 'the effect of the medicine'). You use 実効性 when talking about the quality or potential of a system to produce that result. Think of 効果 as the 'fruit' and 実効性 as the 'ability of the tree to actually grow fruit in this soil.'

Lastly, learners often forget that 実効性 is a noun. It cannot be used directly as an adjective like '実効性な' (incorrect). You must say '実効性のある' (effective) or '実効性を持った' (possessing effectiveness).

Confusion with 有効性 (Yūkōsei): 有効性 often means 'validity' or 'efficacy' (like in clinical trials). 実効性 is 'practical power' (like in law enforcement). If a password is '有効' (yūkō), it is valid. If a security system has '実効性', it actually stops hackers.

「そのルールは形だけで、実効性が伴っていない。」 ("That rule is just for show and isn't accompanied by practical effectiveness.")

To truly master 実効性, you should understand how it compares to its synonyms. Depending on the level of formality and the specific context, you might choose a different word.

1. 有効性 (Yūkōsei): Translates to 'effectiveness' or 'validity.' It is broader than 実効性. It often refers to whether something is capable of producing a result in ideal conditions (like a scientific experiment).
2. 効力 (Kōryoku): Meaning 'effect,' 'force,' or 'validity' (legal). This is used when talking about whether a contract or a law is currently 'active' or 'binding.' If a contract expires, it loses its 効力.
3. 効果 (Kōka): The most general word for 'effect' or 'result.' Use this for medicines, diets, or the impact of a movie. It focuses on the outcome itself.

実効性 (Practical Reality) vs. 有効性 (Theoretical Validity) vs. 効果 (General Result)

In a business setting, you might also hear フィジビリティ (Feasibility). While 実効性 is about the result, feasibility is about whether the plan can be started at all. A plan might be feasible (you can do it) but lack 実効性 (it won't solve the problem).

4. 効き目 (Kikime): A more casual, native Japanese word (wago). Used for medicine or simple advice. 'この薬は効き目がある' (This medicine works).

政策の実効性を担保するため、第三者機関による評価を行う。 (To guarantee the practical effectiveness of the policy, an evaluation by a third-party organization will be conducted.)

By choosing 実効性, you are specifically highlighting the 'real-world' and 'enforcement' aspect of effectiveness. This makes it an indispensable word for anyone aiming for professional-level Japanese proficiency.

How Formal Is It?

حقيقة ممتعة

While '実行' (jikkō) means 'execution' or 'carrying out,' adding '性' shifts the focus from the action itself to the 'potential' or 'capacity' of that action to actually work.

دليل النطق

UK dʒikːoːseː

US dʒɪkːoʊseɪ

The pitch accent is typically 'Atamadaka' (Type 1) or 'Heiban' (Type 0) depending on the dialect, but usually, it is pronounced with a flat or slightly falling pitch after the first syllable in standard Japanese.

يتقافى مع

有効性 (Yūkōsei) 可能性 (Kanōsei) 重要性 (Jūyōsei) 必要性 (Hitsuyōsei) 多様性 (Tayōsei) 客観性 (Kyakkansei) 具体性 (Gutaisei) 一貫性 (Ikkansei)

أخطاء شائعة

Pronouncing 'jikkō' as 'jikō' (accident/time), missing the double 'k'.
Shortening the long 'ō' or 'ē' vowels.
Confusing the reading of 効 (kō) with 功 (kō) or 巧 (kō), though they sound the same, the meaning is different.

مستوى الصعوبة

القراءة 4/5

The kanji are common but the concept is abstract and formal. Requires N2 level reading ability.

الكتابة 4/5

Kanji like '効' and '実' are standard, but using the word naturally in a sentence requires understanding formal collocations.

التحدث 4/5

Rarely used in casual speech, so learners may struggle with the right timing and context.

الاستماع 3/5

Clearly pronounced, but often buried in fast-paced news or business reports.

ماذا تتعلّم بعد ذلك

المتطلبات الأساسية

実行 (jikkō) 効果 (kōka) 有効 (yūkō) 事実 (jijitsu) 性質 (seishitsu)

تعلّم لاحقاً

妥当性 (datōsei) 透明性 (tōmeisei) 一貫性 (ikkansei) 客観性 (kyakkansei) 持続可能性 (jizoku-kanōsei)

متقدم

実効支配 (jikkō shihai) 規範 (kihan) 形骸化 (keigaika) 担保 (tanpo) 乖離 (kairi)

قواعد يجب معرفتها

Noun + の + 実効性

計画の実効性 (The effectiveness of the plan)

実効性 + のある + Noun

実効性のある対策 (An effective measure)

実効性 + に + 欠ける/乏しい

実効性に欠ける法律 (A law lacking effectiveness)

実効性 + を + Verb (transitive)

実効性を高める (Heighten effectiveness)

実効性 + が + Verb (intransitive)

実効性が上がる (Effectiveness increases)

سجّل مجاناً لقراءة الشرح الكامل

أمثلة حسب المستوى

このルールは実効性がありますか。

Does this rule have practical effectiveness?

Simple question using 'arimasu ka'.

実効性はとても大切です。

Practical effectiveness is very important.

Topic marker 'wa' with an adjective.

その計画に実効性はありますか。

Is there practical effectiveness in that plan?

Using 'ni' to indicate location/context.

実効性がないルールはだめです。

Rules without practical effectiveness are no good.

Negative 'nai' modifying the noun 'rule'.

実効性をチェックしましょう。

Let's check the practical effectiveness.

Object marker 'o' with 'mashō' (let's).

新しい薬の実効性は？

What about the practical effectiveness of the new medicine?

Noun + no + Noun structure.

みんなで実効性を考えます。

Everyone thinks about practical effectiveness.

Verb 'kangaemasu' (to think).

実効性が少しあります。

There is a little bit of practical effectiveness.

Adverb 'sukoshi' (a little).

実効性を高めるために、もっと練習します。

In order to increase effectiveness, I will practice more.

Using '~tame ni' to express purpose.

この法律の実効性はまだわかりません。

The effectiveness of this law is not yet known.

Negative 'wakarimasen'.

実効性のある方法を選んでください。

Please choose a method that has practical effectiveness.

Using 'no aru' as a relative clause.

その対策は実効性に欠けています。

That measure lacks practical effectiveness.

The verb 'kakeru' (to lack) in progressive form.

会議で実効性について話し合いました。

We discussed practical effectiveness at the meeting.

Using '~ni tsuite' (about).

実効性を確認することが必要です。

It is necessary to confirm the practical effectiveness.

Nominalizing the verb with 'koto'.

このマニュアルは実効性が低いです。

This manual has low practical effectiveness.

Adjective 'hikui' (low).

実効性を保証することは難しいです。

It is difficult to guarantee practical effectiveness.

Topic marker 'wa' after a nominalized verb.

政策の実効性を疑問視する声が上がっている。

Voices doubting the practical effectiveness of the policy are rising.

Using 'gimonshi suru' (to doubt).

実効性を確保するための具体的なプランが必要です。

A concrete plan is needed to ensure practical effectiveness.

Using 'kakuho suru' (to ensure/secure).

その規制がどれほどの実効性を持つかは不明だ。

It is unclear how much practical effectiveness that regulation possesses.

Indirect question with 'ka'.

実効性を重視した組織作りを目指しています。

We are aiming for organizational development that emphasizes practical effectiveness.

Using 'jūshi shita' (emphasized).

新しいシステムの導入で、業務の実効性が上がった。

With the introduction of the new system, the effectiveness of the work improved.

The particle 'de' indicating cause/means.

実効性に乏しい提案は、却下される可能性が高い。

Proposals lacking practical effectiveness are likely to be rejected.

Using 'toboshii' (scarce/lacking).

この契約には実効性を担保する条項が含まれている。

This contract includes clauses that guarantee practical effectiveness.

Using 'tanpo suru' (to guarantee/collateralize).

実効性を高める努力を怠ってはならない。

One must not neglect efforts to increase practical effectiveness.

Using '~te wa naranai' (must not).

その法案は、実効性の面で多くの課題を残している。

The bill still has many challenges in terms of practical effectiveness.

Using '~no men de' (in terms of).

実効性を伴わないスローガンは意味がない。

Slogans not accompanied by practical effectiveness are meaningless.

Using 'tomowanai' (not accompanied by).

罰則を設けることで、条例の実効性を強化する。

By establishing penalties, we will strengthen the effectiveness of the ordinance.

Using 'koto de' to show the method.

実効性が問われる局面において、リーダーシップが重要だ。

Leadership is crucial in situations where practical effectiveness is called into question.

Using 'kyokumen' (situation/phase).

計画の段階から実効性を考慮に入れるべきだ。

Practical effectiveness should be taken into consideration from the planning stage.

Using 'kōryo ni ireru' (take into consideration).

国際社会は、制裁の実効性を注視している。

The international community is closely watching the effectiveness of the sanctions.

Using 'chūshi suru' (to watch closely).

実効性を裏付けるための証拠を提示してください。

Please present evidence to support the practical effectiveness.

Using 'urazukeru' (to support/back up).

実効性が不透明なまま、プロジェクトが進められた。

The project proceeded while its practical effectiveness remained unclear.

Using 'mama' to show a continuing state.

条約の実効性を担保する国際的な枠組みを構築する。

We will construct an international framework to guarantee the practical effectiveness of the treaty.

Using 'wakugumi' (framework).

形式的な議論に終始し、実効性のある議論がなされなかった。

The discussion remained purely formal, and no discussion with practical effectiveness was held.

Using 'shūshi suru' (to do nothing but).

実効支配を続けることで、領有権を主張している。

By continuing effective control, they are asserting their claim to sovereignty.

Using 'jikkō shihai' (effective control).

ガバナンスの実効性を評価する基準を策定した。

We have formulated criteria to evaluate the practical effectiveness of governance.

Using 'sakutei suru' (to formulate/establish).

実効性が欠如している現状を打開しなければならない。

We must break through the current situation where practical effectiveness is lacking.

Using 'kejyō' (lack/deficiency).

理論的な正当性と実効性の間には、しばしば乖離が生じる。

A gap often arises between theoretical legitimacy and practical effectiveness.

Using 'kairi' (gap/divergence).

行政サービスの普及には、制度の実効性が不可欠である。

The practical effectiveness of the system is indispensable for the spread of administrative services.

Using 'fukabutsu' (indispensable).

実効性を期すために、現場の意見を反映させる。

To ensure practical effectiveness, we will reflect the opinions of those on the ground.

Using 'jikkōsei o kisu' (to ensure effectiveness).

法規範の妥当性と実効性の相克は、法哲学における永劫の課題である。

The conflict between the validity and the practical effectiveness of legal norms is an eternal challenge in legal philosophy.

Using 'sōkoku' (conflict/rivalry).

実効性の観点から、既存の社会システムを根本的に再構築する必要がある。

From the perspective of practical effectiveness, it is necessary to fundamentally reconstruct existing social systems.

Using 'kanten' (perspective).

権力の行使が実効性を失えば、秩序の崩壊を招きかねない。

If the exercise of power loses its practical effectiveness, it could lead to the collapse of order.

Using 'maneki kanenai' (might lead to/invite).

実効性を担保し得ない国際法は、道徳的要請に過ぎないとの批判がある。

There is criticism that international law that cannot guarantee practical effectiveness is nothing more than a moral demand.

Using 'ni suginai' (nothing more than).

経済制裁の実効性を減殺させるような抜け穴を塞ぐべきだ。

Loopholes that diminish the practical effectiveness of economic sanctions should be closed.

Using 'gensatsu suru' (to diminish/reduce).

実効性を追求するあまり、倫理的な配慮が疎かになってはならない。

In the pursuit of practical effectiveness, ethical considerations must not be neglected.

Using 'amari' (too much/excessively).

実効支配の既成事実化は、領土紛争において極めて重大な意味を持つ。

The normalization of de facto control as a fait accompli holds extremely significant meaning in territorial disputes.

Using 'kiseijijitsu-ka' (fait accompli).

デジタル化が税制の実効性に与える影響を多角的に分析する。

We will analyze the impact of digitalization on the practical effectiveness of the tax system from multiple angles.

Using 'takakuteki' (multifaceted).

المرادفات

有効性効果実効有用性現実性

الأضداد

無効性形骸化

تلازمات شائعة

実効性を高める

実効性に欠ける

実効性を確保する

実効性を疑問視する

実効性を担保する

実効性が問われる

実効性が乏しい

実効性を期す

実効性を検証する

実効性を伴う

العبارات الشائعة

実効性のある対策

— A measure that actually works in practice.

政府は実効性のある対策を打ち出した。

実効性に乏しい

— Lacking in practical effectiveness.

そのマニュアルは実効性に乏しい。

実効性を担保する

— To guarantee that something will be effective.

契約の実効性を担保するために保証人を立てる。

実効性を疑う

— To doubt whether something will actually work.

多くの専門家がその計画の実効性を疑っている。

実効性を重視する

— To place importance on practical effectiveness.

わが社は実効性を重視した経営を行っている。

実効性が低い

— Having low effectiveness in reality.

この方法では実効性が低いと言わざるを得ない。

実効性を欠く

— To lack effectiveness (similar to kakeru).

実効性を欠く議論は時間の無駄だ。

実効性を裏付ける

— To provide evidence for effectiveness.

実験データがその手法の実効性を裏付けている。

実効性を高める工夫

— Ingenuity or ideas to increase effectiveness.

実効性を高める工夫が随所に見られる。

実効性の確保

— The act of ensuring/securing effectiveness.

制度の実効性の確保が急務だ。

يُخلط عادةً مع

実効性 vs 効率 (kōritsu)

Kōritsu is about speed and resources (efficiency). Jikkōsei is about whether it works at all (efficacy).

実効性 vs 有効性 (yūkōsei)

Yūkōsei is often theoretical or logical validity. Jikkōsei is practical, real-world execution.

実効性 vs 実際 (jissai)

Jissai means 'reality' or 'actually.' Jikkōsei is the 'quality of being effective in reality.'

تعبيرات اصطلاحية

"実効支配"

— Effective control or de facto rule over a territory or organization.

その島は現在、隣国によって実効支配されている。

Political/Legal

"形骸化する"

— To become a mere shell; to lose substance and effectiveness.

古い校則が形骸化している。

Formal

"絵に描いた餅"

— A 'painted rice cake'—something that looks good but is useless in reality.

実効性のない計画は、絵に描いた餅だ。

Idiomatic

"有名無実"

— Having the name but not the reality; being nominal.

その委員会は有名無実化しており、実効性がない。

Formal

"骨抜きにする"

— To 'remove the bones'—to water down a plan or law so it loses its effectiveness.

法案が修正によって骨抜きにされた。

Political

"死法"

— A 'dead law'—a law that exists but has no practical effectiveness.

その条例は長年使われず、死法となっている。

Legal

"看板倒れ"

— All show and no substance; failing to live up to the advertisement.

期待された新商品だったが、実効性は看板倒れだった。

Colloquial

"机上の空論"

— Theoretical empty talk; an idea that works on paper but not in reality.

現場を知らない人の意見は、机上の空論になりがちだ。

Common

"実効を期す"

— To act with the intention of achieving real results.

実効を期して、厳しい監査を行う。

Formal

"実効を上げる"

— To produce actual, tangible results.

新しい営業戦略が実効を上げている。

Business

سهل الخلط

実効性 vs 能率 (nōritsu)

Both involve the kanji for 'effect' and relate to performance.

Nōritsu is specifically about human or machine work efficiency (rate of work). Jikkōsei is about the success of a system or plan.

仕事の能率を上げる (Increase work efficiency).

実効性 vs 効果 (kōka)

Both mean 'effectiveness' in some sense.

Kōka is the result itself. Jikkōsei is the property of a plan that allows it to produce that result.

薬の効果が現れる (The effect of the medicine appears).

実効性 vs 実行 (jikkō)

Jikkōsei is the noun form of jikkō + sei.

Jikkō is the action of doing. Jikkōsei is the quality of that action being effective.

計画を実行する (Execute the plan).

実効性 vs 実績 (jisseki)

Both start with 'jitsu' and relate to results.

Jisseki is 'track record' or past achievements. Jikkōsei is the potential or capacity for current/future effectiveness.

過去の実績を重視する (Value past track record).

実効性 vs 実力 (jitsuryoku)

Both relate to 'actual' power.

Jitsuryoku is personal ability or true strength. Jikkōsei is the effectiveness of a measure or rule.

彼には実力がある (He has true ability).

أنماط الجُمل

[Plan/Policy] の実効性を高めるために [Action] が必要だ。

計画の実効性を高めるために、もっと予算が必要です。

[Rule] は実効性に欠けているという批判がある。

その新しい校則は実効性に欠けているという批判がある。

実効性のある [Noun] を策定することが急務だ。

実効性のある温暖化対策を策定することが急務だ。

[System] の実効性を担保する仕組みを構築すべきだ。

このガバナンスの実効性を担保する仕組みを構築すべきだ。

実効性が問われる局面において、[Subject] の真価が試される。

実効性が問われる局面において、リーダーの真価が試される。

[Concept A] と [Concept B] の乖離が、実効性の減殺を招いている。

理想と現実の乖離が、法の実効性の減殺を招いている。

実効支配の既成事実化は、[Conflict] において決定的な要因となる。

実効支配の既成事実化は、領土紛争において決定的な要因となる。

[Measure] の実効性を疑問視する声が根強い。

経済制裁の実効性を疑問視する声が根強い。

عائلة الكلمة

الأسماء

実行 (jikkō - execution)

効果 (kōka - effect)

有効 (yūkō - valid)

効力 (kōryoku - legal force)

الأفعال

実行する (jikkō suru - to execute/carry out)

効く (kiku - to work/be effective)

奏功する (sōkō suru - to be successful)

الصفات

実効的な (jikkōteki na - practical/effective)

効果的な (kōkateki na - effective)

有効な (yūkō na - valid)

مرتبط

事実 (jijitsu - fact)

実際 (jissai - reality)

効用 (kōyō - utility)

性質 (seishitsu - nature/quality)

属性 (zokusei - attribute)

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كيفية الاستخدام

frequency

Common in media, legal, and business circles. Rare in daily domestic life.

أخطاء شائعة

Using '実効性な' to modify a noun. → 実効性のある
実効性 is a noun, not a na-adjective. You must use 'aru' (that has) to modify another noun.
Confusing it with 効率 (efficiency). → 実効性 (efficacy/effectiveness)
Efficiency is about speed and waste. Efficacy is about whether the goal is achieved.
Using it for personal skills (e.g., an 'effective' teacher). → 有能な先生 / 腕の良い先生
実効性 describes systems, plans, or measures, not people.
Using it in casual chat with friends. → 効果がある / 効く
It's too formal for casual settings and makes you sound like a news anchor.
Writing '実校性' instead of '実効性'. → 実効性
The kanji 効 (effect) is often confused with 校 (school) or 考 (think) because they share similar components or sounds.

نصائح

Pair with 'Takameru'

If you want to say 'make it work better,' always think of '実効性を高める'. It's a very common set phrase in business.

Reality over Theory

Remember that 'Jitsu' means 'real.' Use this word when you want to emphasize that you aren't just talking about theories, but about real results.

Formal Contexts

Save this word for essays, reports, and formal speeches. In casual conversation, stick to '効果' or '効き目'.

Kanji Breakdown

If you forget the meaning, look at the kanji: Real (実) + Effect (効) + Nature (性). It's the nature of having a real effect.

Related Term

Learn '実効支配' (effective control) at the same time, as it helps reinforce the 'real-world power' meaning of '実効'.

Pitch Accent

Keep your pitch relatively flat throughout the word to sound natural in standard Tokyo Japanese.

Noun Modifier

When modifying a noun, use '実効性のある' (e.g., 実効性のあるルール). Don't use 'no' or 'na'.

NHK Keyword

This is a high-frequency word on NHK news. If you hear 'policy' (seisaku), listen for 'jikkōsei' right after it.

Legal Logic

In law, use this to distinguish between a law that exists and a law that is actually enforced.

The 'Jik' sound

Think of 'Jik' as in 'Actual' (though the sounds don't match, the 'act' part helps remember 'execution/action').

احفظها

وسيلة تذكّر

Think of 'JITSU' (Reality) + 'KO' (Effect) + 'SEI' (Nature). It's the 'Reality-Effect-Nature'. If it's real and it has an effect, it has Jikkōsei.

ربط بصري

Imagine a superhero whose power is to make laws actually work. He wears a suit with the kanji 実効性 on it, and when he appears, people actually stop at red lights and pay their taxes.

Word Web

Policy Result Reality Execution Law Business Enforcement Success

تحدٍّ

Try to find one news article today in Japanese (on NHK News Web Easy or similar) and see if you can find the word 実効性 or its root 実行.

أصل الكلمة

The word is a compound of three kanji: '実' (reality/truth), '効' (effect/result), and '性' (quality/nature). It follows the standard Japanese pattern of creating abstract nouns by adding '性' to a concept.

المعنى الأصلي: The quality of having a real effect.

Sino-Japanese (Kango).

السياق الثقافي

No specific sensitivities, but it is a very dry, formal word.

In English, we might use 'teeth' (e.g., 'a law with teeth') to describe what Japanese calls '実効性のある法'.

Used in the debate over the Kyoto Protocol and Paris Agreement in Japanese media. Commonly appears in 'White Papers' (Hakusho) published by the Japanese government. A key term in Japanese Legal Realism (Hō-genjitsu-shugi).

تدرّب في الحياة الواقعية

سياقات واقعية

Politics/Government

政策の実効性
法案の実効性を高める
実効性のある制裁
実効性を疑問視する

Business Strategy

プロジェクトの実効性
実効性のある経営計画
実効性を検証する
コスト面の実効性

Law/Legal

条約の実効性
実効性を担保する条項
法の実効性を確保する
実効支配の継続

Medicine/Science

治療の実効性
実効再生産数
実効温度
実効値の測定

Education/Rules

校則の実効性
実効性のある指導
ルールの実効性を問う
実効性の低い教育プログラム

بدايات محادثة

"新しい環境政策について、実効性があると思いますか？"

"このプロジェクトの実効性を高めるためには、何が必要でしょうか？"

"最近のニュースで、実効性が問われている問題は何ですか？"

"実効性のあるダイエット方法を探しているのですが、お勧めはありますか？"

"その校則は実効性に欠けているという意見について、どう思いますか？"

مواضيع للكتابة اليومية

あなたが最近立てた計画について、その実効性を自己評価してください。

社会にある「実効性に欠けるルール」を一つ挙げ、どうすれば良くなるか書いてください。

仕事や勉強で、実効性を高めるために工夫していることを詳しく説明してください。

「実効性」と「効率」の違いについて、自分の経験を交えて考察してください。

実効性のあるリーダーとは、どのような資質を持っているべきだと思いますか？

الأسئلة الشائعة

10 أسئلة

It sounds a bit too formal. For medicine, '有効性' (efficacy) or '効果' (effect) is better. For a diet, '効果' is the most natural word. Use '実効性' if you are discussing a government program to reduce obesity nationwide.

有効性 is 'validity' (is it a valid way?). 実効性 is 'practical power' (does it actually work in the messy real world?). A vaccine has '有効性' in a lab, but its '実効性' depends on how many people actually get the shot.

Yes, it frequently appears in the N1 and N2 reading sections, especially in essays about society, business, or the environment.

No, '実効性' is a noun. To use it as an adjective, you must say '実効性のある' (effective) or '実効性を持った' (possessing effectiveness).

The most common ways are '実効性の欠如' (noun) or '実効性に欠ける' (verb phrase).

No, it is almost exclusively used in news reports about territorial disputes or when a rebel group takes over a region.

Common verbs include 高める (increase), 確保する (ensure), 担保する (guarantee), 疑問視する (doubt), and 欠ける (lack).

No, you wouldn't say a person has '実効性'. You would say they have '実力' (true ability) or are '有能' (capable).

Yes, it is very appropriate for formal business communication, especially when discussing plans or proposals.

No, it is a neutral analytical word. However, it is very often used in negative contexts (e.g., 'lacking effectiveness') to criticize something.

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