効き目
効き目 in 30 Seconds
- 効き目 (kikime) means efficacy or effect.
- It describes how well something works to produce a desired result.
- Used for medicines, products, strategies, and efforts.
- Focuses on functional effectiveness and tangible outcomes.
The Japanese word 効き目 (ききめ - kikime) is a noun that refers to the efficacy, effect, or the ability of something to produce a desired result. It's a versatile word used in various contexts, from medicine and technology to personal efforts and even natural phenomena. When you talk about 効き目, you're essentially discussing how well something works or its impact.
- Usage Contexts
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- Medicine and Health: Discussing how effective a medication, treatment, or health regimen is. For example, "Does this medicine have a strong 効き目?"
- Products and Services: Evaluating the performance or impact of a product, like a new cleaning agent or a skincare item. "This new shampoo has a great 効き目."
- Efforts and Strategies: Assessing the success of a particular approach, plan, or effort. "Our marketing strategy showed a significant 効き目."
- Natural Phenomena: Describing the effect of weather, seasons, or other natural forces. "The cold weather had a noticeable 効き目 on the plants."
- Personal Development: Talking about the results of practice, study, or self-improvement. "Consistent practice has a positive 効き目 on my skills."
The core idea behind 効き目 is the presence and strength of an effect. It implies that something is capable of causing a change or achieving a specific outcome. When something has good 効き目, it means it's working as intended or even better. Conversely, if something has weak or no 効き目, it's not producing the desired results.
この薬は効き目が強いです。
Understanding 効き目 helps you gauge the effectiveness of various things in Japanese daily life and conversation. It's a practical term that connects cause and effect, allowing for clear communication about results and performance.
- Key Nuance
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While 効き目 focuses on the *ability* to produce a result, it often implies the *actual* result achieved. So, it's about both potential and realized effectiveness.
この新しいダイエット法は効き目があるか試してみます。
- Beyond Simple Effect
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効き目 is not just about *having* an effect, but often about the *degree* or *quality* of that effect. You can have a strong 効き目 (strong effect), a weak 効き目 (weak effect), or even a delayed 効き目 (delayed effect). This nuance makes it a rich term for describing outcomes.
運動は健康に良い効き目があると言われています。
Using 効き目 (ききめ - kikime) effectively in sentences involves understanding its grammatical role as a noun and how it interacts with other words, particularly adjectives and verbs. The most common structure is to describe the quality or presence of the effect.
- Basic Structures
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- [Noun] + は/が + 効き目 + が + ある/ない: This is the most fundamental way to state whether something has an effect or not. 'ある' means 'to exist' or 'to have', and 'ない' means 'to not exist' or 'to not have'.
- [Adjective] + 効き目: You can directly modify 効き目 with adjectives to describe the nature of the effect. Common adjectives include 強い (strong), 弱い (weak), 大きい (big/great), 小さい (small), 速い (fast), 遅い (slow), 良い (good), 悪い (bad), etc.
- 効き目 + を + 持つ/示す: '持つ (motsu)' means 'to possess' and '示す (shimesu)' means 'to show' or 'to demonstrate'. These are slightly more formal ways to say something has an effect.
Let's look at these in action:
この薬は効き目があります。
Here, 薬 (kusuri - medicine) is the subject, and the sentence states it possesses 効き目. Using があります is a standard way to express possession or existence.
この新しい洗剤は効き目が速いです。
In this sentence, we use the adjective 速い (hayai - fast) directly before 効き目 to describe its speed. This highlights the product's quick action.
運動不足の効き目がない生活を送っている。
This sentence uses 効き目がない (kikime ga nai - has no effect). The preceding phrase 運動不足 (undou busoku - lack of exercise) is the subject whose effect is being discussed. The nuance here can be tricky; it might imply that the lack of exercise *should* have an effect, but it doesn't, or that the lack of exercise itself isn't causing any noticeable change.
- More Examples with Variations
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- Positive Effects:
このビタミン剤は効き目がとても良いです。
(Kono bitamin-zai wa kikime ga totemo ii desu.)
This vitamin supplement has a very good effect. - Negative Effects:
その政策は期待した効き目を示さなかった。
(Sono seisaku wa kitai shita kikime o shimesanakatta.)
That policy did not show the expected effect. (Using 示す) - Delayed Effects:
この治療法の効き目は、数週間後に現れるかもしれません。
(Kono chiryouhou no kikime wa, suushuukan-go ni arawareru kamoshiremasen.)
The effect of this treatment may appear after a few weeks. - Comparing Effects:
新しい薬の方が以前の薬よりも効き目が強い。
(Atarashii kusuri no hou ga izen no kusuri yori mo kikime ga tsuyoi.)
The new medicine has a stronger effect than the previous one.
- Positive Effects:
You'll encounter 効き目 (ききめ - kikime) in a wide array of everyday situations in Japan, reflecting its practical importance in discussing results and effectiveness. Listening for this word can give you insights into how people evaluate products, treatments, and efforts.
- Common Scenarios
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- Television Commercials: Advertisements, especially for pharmaceuticals, health supplements, cosmetics, and cleaning products, frequently highlight the 効き目 of their items. You might hear phrases like "この洗剤は汚れに効き目があります" (This detergent has an effect on dirt) or "この化粧品は肌の悩みに効き目を実感できます" (You can feel the effect of this cosmetic on skin concerns).
- Doctor's Offices and Pharmacies: When discussing a new medication or treatment, doctors and pharmacists might explain its potential 効き目. A doctor might ask, "この薬の効き目はどうですか?" (How is the effect of this medicine?) or a pharmacist might say, "この薬は比較的効き目が穏やかです" (This medicine's effect is relatively mild).
- Product Reviews and Recommendations: Online reviews, blog posts, and casual conversations among friends often involve discussing the 効き目 of various products. Someone might say, "このサプリメントは意外と効き目があったよ" (This supplement surprisingly had an effect).
- Health and Fitness Programs: When discussing exercise routines or diet plans, people talk about their effectiveness. "このトレーニングは効き目があるから続けている" (This training has an effect, so I'm continuing it).
- Business Meetings and Reports: In a professional setting, 効き目 can be used to discuss the impact of strategies, campaigns, or investments. "マーケティング戦略の効き目を分析する" (Analyze the effect of the marketing strategy).
- Gardening and Agriculture: Discussions about fertilizers, pesticides, or even weather patterns might involve 効き目. "この肥料は植物の成長に良い効き目がある" (This fertilizer has a good effect on plant growth).
When you hear 効き目, always consider what is being discussed. Is it a quick, noticeable effect, or a gradual, long-term one? Is the effect strong or weak? This context is crucial for understanding the speaker's evaluation.
ドラマの再放送が意外な効き目を生んだ。
Even in less obvious contexts like cultural phenomena or media, 効き目 can be used to describe impacts. The key is that something is producing a discernible result.
- Listening Practice
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When listening to Japanese, try to identify what noun or concept is being linked to 効き目. This will help you understand the cause-and-effect relationship the speaker is describing.
この新しい広告キャンペーンは、予想以上の効き目があった。
When learning and using 効き目 (ききめ - kikime), learners might make a few common errors that can lead to misunderstandings. Being aware of these pitfalls can help you use the word more accurately.
- Mistake 1: Confusing with 'Effect' in General
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The Mistake: Using 効き目 when a more general word for 'effect' or 'influence' is needed, or vice versa. 効き目 specifically implies the ability to produce a *desired* or *intended* result, or a noticeable impact. It's not always interchangeable with abstract 'effects' or 'influences' that don't necessarily have a clear outcome.
Example of Misuse: Saying 「彼の話は私に効き目があった」 (Kare no hanashi wa watashi ni kikime ga atta) when you simply mean his story had an impact or made you think, rather than producing a specific, desired action or change.
Correction: If you mean his story 'influenced' you or 'left an impression,' you might use words like 影響 (eikyou) or 感銘 (kanmei). If his story *motivated* you to do something, then 効き目 could be appropriate.
- Mistake 2: Incorrect Particle Usage
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The Mistake: Incorrectly using particles like を or に with 効き目, especially when describing the quality of the effect.
Example of Misuse: 「この薬は効き目に強いです」 (Kono kusuri wa kikime ni tsuyoi desu.) This sounds unnatural.
Correction: The most common and natural construction is to use が to link the subject to the quality of its 効き目: 「この薬は効き目が強いです」 (Kono kusuri wa kikime ga tsuyoi desu.) - This medicine has a strong effect.
Note: While が is standard for describing the attribute of 効き目, particles like を might appear with verbs like 持つ (motsu - to possess) or 示す (shimesu - to show), as in 効き目を示す (kikime o shimesu - to show an effect).
- Mistake 3: Overuse or Underuse
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The Mistake: Sometimes learners might avoid 効き目 because it seems specific, or conversely, overuse it when simpler words would suffice. It's important to use it when discussing the tangible results or the functional effectiveness of something.
Example of Underuse: When asked about a new diet's success, saying 「あまり変わらない」 (Amari kawaranai - Not much has changed) instead of 「このダイエットは効き目があまりない」 (Kono daietto wa kikime ga amari nai - This diet doesn't have much effect).
Correction: Use 効き目 when you want to specifically comment on whether something is working as intended or producing a noticeable outcome, especially in contexts like medicine, products, or efforts.
間違った使い方:この本は効き目に面白い。
The word 効き目 is tied to function and results, not subjective qualities like 'interesting'.
While 効き目 (ききめ - kikime) is a useful term for efficacy and effect, several other Japanese words share similar meanings or can be used as alternatives depending on the nuance and context. Understanding these distinctions will help you choose the most precise word.
- 効果 (こうか - kouka)
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Meaning: Effect, result, benefit. This is perhaps the most common and direct synonym for 効き目. It's very broadly used for any kind of outcome or consequence.
Usage Comparison:
- 効き目: Often implies the *ability* to produce a result, or a noticeable, often practical, effect. It's frequently used when evaluating how well something *works*. (e.g., medicine, tools, strategies).
- 効果: More general. Can refer to any result, positive or negative, intended or unintended. It's very common in scientific, economic, or general discussions of outcomes.
Example:
- 効き目: この薬は効き目が強いです。(This medicine has a strong effect - focusing on its working power.)
- 効果: この薬は副作用という効果もあります。(This medicine also has the effect of side effects - a general consequence, not necessarily positive.)
- 効果: 運動は健康に良い効果をもたらします。(Exercise brings good effects to health - general benefits.)
- 影響 (えいきょう - eikyou)
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Meaning: Influence, effect, impact. This word is used for broader, often less direct, influences or consequences.
Usage Comparison:
- 効き目: Focuses on the functional effectiveness and the ability to produce a specific, often tangible, result.
- 影響: Focuses on the impact or sway something has, which might be more subtle, psychological, or societal. It doesn't necessarily imply a specific 'working' mechanism.
Example:
- 効き目: この新しい技術は生産性を向上させる効き目がある。(This new technology has the effect of improving productivity - it works to achieve this.)
- 影響: 彼の言葉は若者に大きな影響を与えた。(His words gave great influence/impact to the youth - a broader societal effect.)
- 成果 (せいか - seika)
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Meaning: Result, achievement, fruit (of labor). This word emphasizes the positive outcome or accomplishment that results from effort.
Usage Comparison:
- 効き目: Focuses on the *mechanism* or *ability* to produce a result, often in the present or future.
- 成果: Focuses on the *actual, realized, and often positive outcome* achieved after effort or over time. It's about the 'harvest' of one's work.
Example:
- 効き目: このトレーニングは効き目があるか? (Will this training have an effect? - asking about its potential to work.)
- 成果: 長年の努力が実を結び、素晴らしい成果を上げた。(Years of effort bore fruit, achieving wonderful results - the realized positive outcome.)
- 作用 (さよう - sayou)
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Meaning: Action, function, effect (especially of a chemical or physical process). This is often used in scientific or technical contexts.
Usage Comparison:
- 効き目: More general, can apply to anything that produces a result.
- 作用: More specific to how something *acts* or *functions* on a physical or chemical level. It's about the process of acting.
Example:
- 効き目: この薬は鎮痛の効き目がある。(This medicine has an analgesic effect - it works to relieve pain.)
- 作用: この化学物質は人体にどのような作用を及ぼすのか? (What kind of action/effect does this chemical substance have on the human body? - focusing on the mechanism.)
効き目 vs 効果: 「この化粧品は効き目が早く、効果も大きい。」
How Formal Is It?
"本製品は、臨床試験において顕著な治療的効き目を示しました。"
"この新しい農薬は、害虫に対してかなり効き目があるようです。"
"このダイエット、効き目あるかな?"
"このおもちゃ、よく動くね!すごい効き目だ!"
Fun Fact
The kanji 効 itself is composed of the radical ચ (which relates to 'action' or 'effort') and 卬 (which can mean 'to rise' or 'to contribute'). This suggests the idea of effort leading to a beneficial outcome. The addition of 目 (me) as 'result' or 'sign' solidifies its meaning as the observable effect of that effort.
Pronunciation Guide
- Pronouncing it as 'kikimi' or 'kikemi'.
- Incorrectly stressing the last syllable.
- Confusing the vowel sounds.
Difficulty Rating
The word itself is not overly complex, but understanding its nuances and appropriate usage in various contexts requires some exposure and practice. Distinguishing it from synonyms like 効果 or 影響 can be challenging.
Using 効き目 correctly in writing, especially in formal contexts, requires careful consideration of the specific meaning and the appropriate grammatical structures and particles.
Pronunciation is not difficult, but choosing the right word and expressing the nuanced meaning of 効き目 in spontaneous speech can be challenging for learners.
Recognizing 効き目 in spoken Japanese is generally easy due to its distinct pronunciation. However, understanding the exact context and the speaker's intent behind using it might require more advanced comprehension skills.
What to Learn Next
Prerequisites
Learn Next
Advanced
Grammar to Know
Using が with adjectives to describe nouns (e.g., 効き目が強い)
この薬は効き目が強いです。(This medicine has a strong effect.)
Using particles like は and が to mark subjects and topics.
この薬は効き目があります。(As for this medicine, it has an effect.) この薬が効き目があります。(This medicine has an effect. - emphasizes the medicine itself)
Verb conjugation: 効く (kiku) -> 効かない (kikanai) / 効きます (kikimasu)
この薬は効きません。(This medicine doesn't work.)
Using potential form of verbs (e.g., 効ける - kikeru, though less common than 効く).
この治療法は患者に効けるだろうか? (Will this treatment be able to affect the patient?)
Using 〜ようだ/みたいだ to express appearance or conjecture.
この薬は効き目がないようだ。(This medicine seems to have no effect.)
Examples by Level
この薬、効き目ある?
This medicine, have effect?
Simple question about effectiveness.
効き目がないみたい。
Effect, not exist seems.
Expressing lack of effect.
効き目があるね。
Effect, exist, isn't it?
Affirming that something has an effect.
効き目、強い?
Effect, strong?
Asking about the strength of the effect.
効き目、弱い。
Effect, weak.
Describing a weak effect.
効き目、速い。
Effect, fast.
Describing a fast effect.
効き目、遅い。
Effect, slow.
Describing a slow effect.
効き目、いい。
Effect, good.
Describing a good effect.
この新しい薬は効き目があると思います。
This new medicine, effect, exist, I think.
Expressing belief in the effectiveness of a new medicine.
このダイエット法は効き目がないようだ。
This diet method, effect, not exist, seems.
Indicating that a diet method appears ineffective.
彼の提案は会議で効き目がありました。
His proposal, in meeting, effect, existed.
Describing the successful impact of a proposal.
このクリームは肌に良い効き目がある。
This cream, on skin, good effect, exists.
Stating that a cream has a good effect on the skin.
運動を続けると、身体に効き目が出てきます。
Exercise, to continue, body, effect, comes out.
Explaining that continued exercise yields positive effects.
この方法では効き目が期待できない。
This method, effect, cannot expect.
Stating that a certain method cannot be expected to be effective.
その製品は効き目が遅いけれど、確実だ。
That product, effect, slow, but, certain.
Describing a product that is slow to work but reliable.
この薬は即効性のある効き目がある。
This medicine, immediate-acting, effect, has.
Highlighting a medicine with a fast-acting effect.
この新しい治療法は、従来の薬よりも効き目が強いと期待されています。
This new treatment method, compared to conventional medicine, effect, strong, is expected.
Expressing expectations about a new treatment's effectiveness compared to older ones.
長期間服用しても、この薬には目立った効き目が現れませんでした。
Long period, even if taken, this medicine, noticeable effect, did not appear.
Reporting a lack of noticeable effect from a medication taken over a long period.
彼のスピーチは聴衆に強い効き目を与え、多くの人が行動を起こしました。
His speech, to audience, strong effect, gave, many people, action, took.
Describing a speech that had a strong impact and motivated action.
この地域では、最近の気候変動が農作物の生育に悪影響を及ぼす効き目を見せている。
This region, recent climate change, crops' growth, negative effect, is showing.
Observing a negative effect of climate change on crops.
新しいマーケティング戦略は、予想以上の効き目を示し、売上が大幅に増加しました。
New marketing strategy, more than expected effect, showed, sales, greatly, increased.
Reporting a successful marketing strategy that yielded better-than-expected results.
このサプリメントは、毎日摂取することで徐々に効き目が出てくると説明されました。
This supplement, daily intake, by doing, gradually effect, comes out, was explained.
Explaining that a supplement's effect is gradual with daily intake.
環境問題に対する意識を高めるためのキャンペーンは、限定的な効き目しかありませんでした。
Environmental issues, towards awareness, to raise, campaign, limited effect, only, had.
Assessing a campaign's effectiveness as limited.
この伝統的な治療法は、現代医学の薬にはない独特の効き目があると言われています。
This traditional treatment method, modern medicine's drugs, in not have, unique effect, has, it is said.
Mentioning a unique efficacy of a traditional treatment.
この革新的な技術は、従来のシステムでは見られなかった劇的な効き目をもたらす可能性がある。
This innovative technology, in conventional systems, not seen, dramatic effect, bring about, possibility exists.
Discussing the potential for dramatic effects from new technology.
長年の研究にもかかわらず、その病気に対する決定的な効き目を持つ治療法は未だ確立されていない。
Many years of research, despite, that disease, against decisive effect, possess, treatment method, still, not established.
Stating that a definitive curative effect has not yet been established for a disease.
彼の芸術作品は、鑑賞者に深い心理的な効き目を与え、自己省察を促すことで知られている。
His artwork, to viewers, deep psychological effect, gives, self-reflection, encourages, by doing, is known.
Describing artwork that has a profound psychological effect.
都市開発計画の長期的な効き目を評価するためには、環境や社会への影響を多角的に分析する必要がある。
Urban development plan's, long-term effect, to evaluate, environment, and society, towards impact, from multiple angles, to analyze, is necessary.
Emphasizing the need for multifaceted analysis to assess the long-term efficacy of urban development.
その教育プログラムは、学習者の創造性を刺激する顕著な効き目を示しており、教育界から高い評価を受けている。
That educational program, learners' creativity, to stimulate, remarkable effect, shows, education world, from, high evaluation, is receiving.
Highlighting an educational program's notable effect on stimulating creativity.
この地域経済の活性化策は、当初の予想を上回る効き目を発揮し、多くの雇用を生み出した。
This regional economy's, revitalization measures, initial expectations, exceed, effect, demonstrated, much employment, created.
Reporting that economic revitalization measures have been highly effective.
気候変動の緩和策が、地球規模の生態系にどのような効き目をもたらすかについては、まだ議論が続いている。
Climate change's, mitigation measures, global scale, ecosystems, what kind of effect, bring about, regarding, still, discussion, continues.
Discussing the ongoing debate about the effects of climate change mitigation strategies.
この天然成分は、科学的には証明されていないものの、古くから伝わる民間療法として独特の効き目があると信じられている。
This natural ingredient, scientifically, not proven, although, from old times, passed down, folk remedy, as, unique effect, has, it is believed.
Referring to a belief in a natural ingredient's unique efficacy as a folk remedy.
その政策の真の効き目を評価するには、短期的な経済指標だけでなく、長期的な社会構造への影響も考慮に入れなければならない。
That policy's, true efficacy, to evaluate, short-term economic indicators, not only, long-term social structure, towards impact, also, must take into consideration.
Advocating for a comprehensive evaluation of policy efficacy, including long-term societal impacts.
現代医療における個別化医療の進展は、従来の画一的なアプローチでは得られなかった、極めて精密な効き目を期待させている。
In modern medicine, personalized medicine's, advancement, in conventional, uniform approaches, not obtained, extremely precise efficacy, is making us expect.
Discussing the expectation of highly precise efficacy from personalized medicine.
彼の文学作品は、読者の内面に深く作用し、既存の価値観に揺さぶりをかけるような、他に類を見ない効き目を持つ。
His literary works, readers' inner selves, deeply act upon, existing values, to shake, like, unparalleled efficacy, possess.
Describing literary works as having an unparalleled effect on readers' inner selves and values.
地球温暖化対策として導入された新たな技術は、その初期段階において、理論上の効き目と実際の効果との間に乖離が見られる。
As global warming countermeasures, introduced, new technologies, in their initial stages, theoretical efficacy, and actual effects, between, a gap, is seen.
Noting a discrepancy between theoretical efficacy and actual effects of new climate change technologies.
この心理療法は、患者の自己肯定感を高めるという点で顕著な効き目を示す一方で、その適用範囲や持続性についてはさらなる検証が必要である。
This psychotherapy, patients' self-esteem, to raise, in terms of, notable efficacy, shows, on the other hand, its scope of application, and sustainability, regarding, further verification, is necessary.
Acknowledging a notable efficacy in psychotherapy while calling for further validation of its scope and sustainability.
グローバル化の進展は、各国の経済構造に多岐にわたる効き目をもたらしており、その影響は計り知れない。
Globalization's, advancement, in various countries, economic structures, to wide-ranging effects, is bringing, its impact, is immeasurable.
Describing globalization's wide-ranging and immeasurable effects on national economies.
その芸術的介入は、都市空間に予期せぬ効き目をもたらし、地域住民の公共空間に対する認識を根本的に変容させた。
That artistic intervention, in urban space, unexpected effect, brought about, local residents', public space, towards perception, fundamentally transformed.
Highlighting an artistic intervention's unexpected effect of fundamentally transforming residents' perception of public space.
この古典的な科学理論は、現代の応用分野においてもなお、その普遍的な効き目を証明し続けている。
This classic scientific theory, in modern applied fields, even now, its universal efficacy, is continuing to prove.
Emphasizing the continued, universal efficacy of a classic scientific theory in modern applications.
その政策の長期的な効き目を正確に予測することは、複雑な社会経済的要因の相互作用を考慮すると、極めて困難な課題である。
That policy's, long-term efficacy, to accurately predict, complex socio-economic factors, of interaction, to consider, extremely difficult challenge, is.
Asserting the extreme difficulty in accurately predicting a policy's long-term efficacy due to complex interactions.
革命的な医学的発見は、しばしば、既存のパラダイムを覆すほどの、想像を絶する効き目と予期せぬ副次的影響を伴う。
Revolutionary medical discoveries, often, existing paradigms, to overturn, to the extent of, unimaginable efficacy, and unexpected secondary effects, are accompanied by.
Discussing revolutionary medical discoveries as having unimaginable efficacy and unforeseen consequences.
彼の哲学は、単なる思弁的な議論に留まらず、個々人の認識論的枠組みに根源的な変容を促す、実践的な効き目を持つ。
His philosophy, merely speculative arguments, not limited to, individual persons', epistemological frameworks, to fundamental transformation, encourages, practical efficacy, possesses.
Characterizing a philosophy as having practical efficacy that induces fundamental shifts in epistemological frameworks.
気候変動に対する人類の適応策の効き目は、地域ごとの脆弱性、利用可能な資源、そして国際協力の度合いによって大きく左右される。
Climate change, against humanity's, adaptation measures, efficacy, region by region, vulnerability, available resources, and international cooperation, degree of, by, greatly influenced.
Explaining that the efficacy of climate change adaptation measures is highly contingent on regional factors and cooperation.
この芸術運動の革新性は、その後の芸術史に与えた広範な効き目によって、時代を超えて称賛されている。
This art movement's, innovativeness, subsequent art history, to gave, extensive efficacy, by, transcends time, is praised.
Highlighting an art movement's enduring acclaim due to its extensive influence on art history.
経済政策の設計においては、理論的な効き目と現実世界における複雑なフィードバックループとの間の緊張関係を常に考慮しなければならない。
Economic policy's, design, in, theoretical efficacy, and real world, in, complex feedback loops, between, the tension, must always consider.
Stressing the necessity of considering the tension between theoretical efficacy and real-world feedback loops in economic policy design.
その古代文明の工学的遺産は、現代の技術的課題に対する解決策としても、未だその効き目を失っていない。
That ancient civilization's, engineering heritage, modern technological challenges, against, as solutions, even now, its efficacy, has not lost.
Asserting that the engineering legacy of an ancient civilization still retains its efficacy for modern technological challenges.
言語習得における没入型学習の効き目は、個人の学習スタイルや動機付けのレベルによって大きく変動する。
Language acquisition, in, immersive learning's, efficacy, individual's learning style, and motivation's, level, by, greatly varies.
Noting that the efficacy of immersive language learning varies significantly based on individual factors.
Common Collocations
Common Phrases
— To show an effect; to demonstrate efficacy (more formal).
この新しい技術は、期待以上の効き目を示しました。
Often Confused With
While often interchangeable, 効き目 tends to emphasize the *ability* or *power* to produce a result (functional efficacy), whereas 効果 is a more general term for 'effect' or 'result,' which can be positive, negative, or neutral.
影響 refers to a broader 'influence' or 'impact' that might be psychological, social, or indirect. 効き目 usually implies a more direct, tangible, and often functional outcome.
効く is the verb form ('to be effective', 'to work'). 効き目 is the noun form ('efficacy', 'effect') derived from this verb.
Idioms & Expressions
— To try any and all remedies or methods, regardless of whether they are appropriate or effective, in desperation. Literally 'to throw medicine and stones'. While not directly using 効き目, it relates to the *hope* for efficacy in dire situations.
病状が悪化し、あらゆる薬石を投げうずような状況だった。
Formal/Literary— Like pouring water on a hot stone; something that has no effect or is completely futile. This idiom describes a lack of efficacy.
彼の励ましは、絶望している友人には焼け石に水だった。
Common— Like driving a nail into bran; a futile effort that yields no result. Similar to 焼け石に水, it implies a lack of efficacy.
どんなに説明しても、理解してもらえず、糠に釘だった。
Common— To be covered in mud; to be involved in dirty or unethical work. While not directly about efficacy, it implies a situation where positive outcomes (efficacy) are unlikely or tainted.
彼は権力争いの泥にまみれてしまった。
Common— Like chanting Buddhist prayers to a horse; talking to someone who doesn't listen or understand. This implies that whatever is said or done has no effect or efficacy on the listener.
いくら注意しても、彼は聞かない。馬の耳に念仏だ。
CommonEasily Confused
Both words relate to results or outcomes.
効き目 (kikime) emphasizes the *ability* or *power* to produce a specific, often intended, result, focusing on functional efficacy. It's about how well something *works*. 効果 (kouka) is a more general term for 'effect' or 'result,' encompassing any consequence, positive, negative, or neutral, and is often used in scientific or broader contexts. Example: この薬は<strong>効き目</strong>が強いが、副作用という<strong>効果</strong>もある。(This medicine has a strong effect (works powerfully), but it also has the effect (consequence) of side effects.)
この薬は<strong>効き目</strong>が強いが、副作用という<strong>効果</strong>もある。
Both can describe something having an impact.
効き目 (kikime) specifically refers to the functional efficacy or the power to produce a desired outcome, often in a practical sense (like medicine or a tool). 影響 (eikyou) refers to a broader 'influence' or 'impact,' which can be psychological, social, environmental, or indirect, and doesn't necessarily imply a specific functional 'working' mechanism. Example: 新技術の<strong>効き目</strong>は大きいが、社会への<strong>影響</strong>も大きい。(The efficacy of the new technology is great, and its impact on society is also great.)
新技術の<strong>効き目</strong>は大きいが、社会への<strong>影響</strong>も大きい。
They are closely related, with one being the verb and the other the noun.
効く (kiku) is the verb meaning 'to be effective,' 'to work,' or 'to be potent.' 効き目 (kikime) is the noun derived from this verb, meaning 'efficacy,' 'effect,' or 'the power to produce a result.' You use 効く to say something works, and 効き目 to talk about the quality or existence of that working ability. Example: この薬はよく<strong>効く</strong>。(This medicine works well.) Example: この薬は<strong>効き目</strong>が強い。(This medicine has a strong effect.)
この薬はよく<strong>効く</strong>。 この薬は<strong>効き目</strong>が強い。
Both refer to how something functions or its outcome.
作用 (sayou) typically describes the 'action' or 'function' of something, often in a scientific or technical context, detailing the mechanism by which it operates (e.g., chemical action). 効き目 (kikime) focuses more on the *result* or *efficacy* of that action – whether it achieves a desired outcome. You might study the 作用 of a drug to understand its 効き目. Example: この薬の<strong>作用</strong>機序を調べ、その<strong>効き目</strong>を評価する。(Investigate the drug's mechanism of action and evaluate its efficacy.)
この薬の<strong>作用</strong>機序を調べ、その<strong>効き目</strong>を評価する。
Both relate to positive outcomes.
効き目 (kikime) refers to the *ability* to produce a result or the immediate effect, often in the present or future tense, focusing on the 'working power.' 成果 (seika) refers to the 'achieved result,' 'fruit,' or 'accomplishment,' usually implying a positive outcome that has been realized over time due to effort. Example: トレーニングの<strong>効き目</strong>はまだ出ていないが、きっと良い<strong>成果</strong>につながるだろう。(The effect of the training hasn't appeared yet, but it will surely lead to good results.)
トレーニングの<strong>効き目</strong>はまだ出ていないが、きっと良い<strong>成果</strong>につながるだろう。
Sentence Patterns
[Noun] + は/が + 効き目 + が + ある/ない。
この薬は<strong>効き目</strong>がある。
[Adjective] + 効き目 + が + ある/ない。
速い<strong>効き目</strong>がある。
[Noun] + は/が + [Adjective] + 効き目 + を + 持つ/示す。
この技術は強い<strong>効き目</strong>を示した。
[Noun] + の + 効き目 + は + [Adjective] + だ。
この治療法の<strong>効き目</strong>は遅いだ。
[Noun] + は、[Noun] + よりも + [Adjective] + 効き目 + が + ある。
新しい薬は古い薬より<strong>効き目</strong>がある。
[Noun] + は、[Adjective] + 効き目 + を + 実感する。
この化粧品はすぐに<strong>効き目</strong>を実感できる。
[Noun] + の + 効き目 + は、[Noun] + への + 影響 + も + 考慮 + する + 必要がある。
その政策の<strong>効き目</strong>は、社会への影響も考慮する必要がある。
[Noun] + は、[Adverb] + 効き目 + を + もたらす/生む。
この技術は劇的な<strong>効き目</strong>をもたらした。
Word Family
Nouns
Verbs
Related
How to Use It
High
-
Using 効き目 for a general 'influence' or 'impression'.
→
Using 影響 (eikyou) or 感銘 (kanmei) for abstract influences.
効き目 specifically implies a functional or tangible outcome. If a story simply 'made you think' without causing a specific action or change, 影響 is more appropriate than 効き目.
-
Incorrect particle usage, e.g., '効き目に強い' instead of '効き目が強い'.
→
Using '効き目が強い' (kikime ga tsuyoi).
The standard and most natural construction to describe the quality of the effect is to use the particle が (ga) to link the noun 効き目 with the adjective describing it.
-
Confusing 効き目 (noun) with 効く (kiku - verb).
→
Using 効く when you mean 'to work' or 'to be effective', and 効き目 when you mean 'effect' or 'efficacy'.
For example, 'この薬は効く' (This medicine works) uses the verb. 'この薬は効き目がある' (This medicine has an effect) uses the noun.
-
Using 効き目 when 効果 (kouka) or 作用 (sayou) would be more precise.
→
Using 効果 for general results, and 作用 for mechanisms of action.
While there's overlap, 効き目 is best for functional effectiveness. For scientific mechanisms, 作用 is better. For general outcomes, 効果 is safer.
-
Assuming 効き目 is always positive.
→
Recognizing that 効き目 refers to the presence of an effect, which can be positive, negative, or neutral depending on context.
While often used for desired results, 効き目 can describe any observable outcome. For clearly negative results, words like 悪影響 (akueikyou) are more common, but 効き目 can still be used to describe an undesired effect.
Tips
Focus on Functional Efficacy
Remember that 効き目 (kikime) strongly implies the ability to produce a specific, often practical or functional, result. Think about whether something is 'working' as intended when you use this word.
Master the 'ga' Particle
The most common grammatical pattern is '[Subject] は/が 効き目 が [adjective/ある/ない]'. For example, 'この薬は効き目が強い' (This medicine has a strong effect). Mastering this structure is key to using 効き目 correctly.
Distinguish from Synonyms
While 効果 (kouka) is similar, try to use 効き目 when you want to emphasize the *power* or *ability* to work, especially for medicines, treatments, or strategies. Use 影響 (eikyou) for broader influences and 成果 (seika) for achieved accomplishments.
Even Stress
Pronounce 効き目 (ki-ki-me) with relatively even stress on each syllable, perhaps with a slight emphasis on the first 'ki'. Avoid stressing the last syllable too heavily.
Listen in Real Life
Pay attention to how 効き目 is used in Japanese dramas, commercials, and conversations. Notice what kind of things are described as having 効き目 and the adjectives used with it.
Visual Association
Create a mental image: imagine a 'key' (kiki) that unlocks a 'mark' or 'sign' (me) of success or a result. This key's action is its 効き目.
Sentence Creation
Write your own sentences using 効き目 in different contexts. Try describing the efficacy of a fictional product, a personal habit, or a historical event.
Consider the Degree
When using 効き目, don't just say it exists or not. Use adjectives like 強い (strong), 弱い (weak), 速い (fast), or 遅い (slow) to better describe the nature and intensity of the effect.
Appreciation for Results
Understand that in Japanese culture, there's often an appreciation for tangible results and effectiveness. Discussing 効き目 is a natural part of evaluating performance and quality.
Combine with Verbs
Explore using 効き目 with verbs like 実感する (jikkan suru - to feel/experience) or 示す (shimesu - to show) for more descriptive sentences, especially in formal writing or speech.
Memorize It
Mnemonic
Imagine a detective investigating a case. They are looking for the 'key' (効き - kiki) clue that leaves a 'mark' or 'sign' (目 - me) of what happened. The 'key' clue is what makes the case effective and reveals the result.
Visual Association
Picture a potent potion bottle with a large, clear 'M' (for 'Me'aning 'mark' or 'result') etched onto it, glowing with energy. This 'M' signifies that the potion has a strong 効き目.
Word Web
Challenge
Try to describe the 効き目 of your favorite food, a song that uplifts you, or a study method you use. Focus on what specific result it produces.
Word Origin
The word 効き目 is a compound of two parts: 効き (kiki) and 目 (me). 効き comes from the verb 効く (kiku), meaning 'to be effective' or 'to work'. 目 (me) in this context does not mean 'eye' but rather refers to a 'mark', 'sign', or 'result'. Therefore, 効き目 literally means 'the mark/sign of being effective' or 'the result of working'.
Original meaning: The 'mark' or 'sign' that something is working or producing a result.
JaponicCultural Context
When discussing 効き目, especially concerning medicine or health, it's important to be respectful and avoid making definitive claims without proper context or authority. For example, instead of saying 'This will cure you,' it's better to say 'This medicine is expected to have a good 効き目.'
In English, we use words like 'efficacy,' 'effectiveness,' 'impact,' or 'result.' While similar, '効き目' often carries a nuance of a tangible, functional outcome that is observable and measurable, especially in practical applications like medicine or technology.
Practice in Real Life
Real-World Contexts
Discussing medicine or health treatments.
- この薬の効き目はどうですか?
- 効き目が強い薬
- 効き目が遅いけど安全です
Evaluating the performance of products.
- この洗剤はよく効き目がある。
- 効き目を実感できる化粧品
- 期待した効き目がなかった
Talking about strategies or efforts.
- 新しい戦略の効き目を分析する。
- この方法なら効き目があるはずだ。
- 努力の効き目が出てきた
Describing natural phenomena or environmental changes.
- 寒さが効き目を発揮している。
- 気候変動の効き目
- この肥料は効き目が良い
Personal development or skill improvement.
- 練習の効き目を感じる。
- 勉強の効き目が出た。
- 自己啓発の効果
Conversation Starters
"最近試したもので、すごく効き目があったものはありますか?"
"この薬、効き目があるか心配なんですが、どう思いますか?"
"新しいダイエット法を始めたんですが、まだ効き目が出ていないみたいです。"
"この掃除機、効き目があるかどうかわからないのですが、使ったことありますか?"
"あなたの国の伝統的な薬は、どんな効き目があるんですか?"
Journal Prompts
Write about a time when a particular effort you made had a significant 効き目. What was the effort, and what was the result?
Describe a product or service you've used that had a surprisingly strong 効き目. What made it so effective?
Reflect on a situation where something you tried had little to no 効き目. What did you learn from that experience?
Imagine you are developing a new product. What kind of 効き目 would you want it to have, and how would you describe it?
Think about a habit you've tried to change. What kind of 効き目 did you hope to achieve, and what was the actual outcome?
Frequently Asked Questions
10 questionsWhile often used interchangeably, 効き目 (kikime) tends to emphasize the *ability* or *power* of something to produce a specific, often intended, result, focusing on functional efficacy – how well it *works*. 効果 (kouka) is a more general term for 'effect' or 'result,' encompassing any consequence, positive, negative, or neutral. For example, you might say a medicine has a strong 効き目 (kikime) because it works powerfully, and it also has the 効果 (kouka) of side effects.
Yes, it can be used for abstract concepts, but it always implies a tangible or observable outcome. For instance, you might talk about the 効き目 of a new teaching method on students' learning, or the 効き目 of a motivational speech on someone's actions. It's about whether the concept 'works' to produce a specific result.
If something has good 効き目, it means it is producing the desired or expected result effectively. For example, a medicine with good 効き目 will alleviate your symptoms, a marketing campaign with good 効き目 will increase sales, and a study method with good 効き目 will improve your grades.
Not necessarily. While it often implies a positive or desired outcome, 効き目 simply refers to the presence and strength of an effect. You can have a 'bad effect' or 'negative efficacy' described using 効き目, though it's more common to use words like 悪影響 (akueikyou - negative influence) or 副作用 (fukusayou - side effect) for clearly negative outcomes. However, one might say a certain method had an unintended, undesirable 効き目.
Common adjectives include: 強い (tsuyoi - strong), 弱い (yowai - weak), 速い (hayai - fast), 遅い (osoi - slow), 大きい (ookii - big/great), 小さい (chiisai - small), 良い (ii - good), 悪い (warui - bad), 顕著な (kencho na - remarkable), 限定的な (genteiteki na - limited). These adjectives help describe the nature and degree of the effect.
No, 効き目 is a noun. The related verb is 効く (kiku), which means 'to be effective' or 'to work'. For example, 'この薬は効く' (Kono kusuri wa kiku - This medicine works), but 'この薬は効き目がある' (Kono kusuri wa kikime ga aru - This medicine has an effect).
You can say 効き目がない (kikime ga nai - has no effect) or 効き目がないようだ (kikime ga nai you da - seems to have no effect). If you want to be more specific about the lack of result, you might say '効果がない' (kouka ga nai - no result/effect).
Yes, 効き目 is commonly used in everyday conversations, especially when discussing things like medicine, health products, cosmetics, or the effectiveness of a particular strategy or effort.
効き目 is the result or outcome of an effort. One puts in effort (e.g., studying, exercising, applying a strategy) with the expectation that it will yield a certain 効き目. So, effort leads to 効き目.
Yes, it can. For example, you might say 'The cold weather had a noticeable 効き目 on the plants' (寒い天気が植物に目立った効き目をもたらした - Samui tenki ga shokubutsu ni medatta kikime o motarashita), meaning the cold weather had a significant effect on them.
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Summary
効き目 (kikime) is a crucial noun in Japanese that signifies the efficacy or effectiveness of something, emphasizing its ability to produce a desired or noticeable result, commonly used when evaluating how well medicines, products, strategies, or efforts are performing.
- 効き目 (kikime) means efficacy or effect.
- It describes how well something works to produce a desired result.
- Used for medicines, products, strategies, and efforts.
- Focuses on functional effectiveness and tangible outcomes.
Focus on Functional Efficacy
Remember that 効き目 (kikime) strongly implies the ability to produce a specific, often practical or functional, result. Think about whether something is 'working' as intended when you use this word.
Master the 'ga' Particle
The most common grammatical pattern is '[Subject] は/が 効き目 が [adjective/ある/ない]'. For example, 'この薬は効き目が強い' (This medicine has a strong effect). Mastering this structure is key to using 効き目 correctly.
Distinguish from Synonyms
While 効果 (kouka) is similar, try to use 効き目 when you want to emphasize the *power* or *ability* to work, especially for medicines, treatments, or strategies. Use 影響 (eikyou) for broader influences and 成果 (seika) for achieved accomplishments.
Even Stress
Pronounce 効き目 (ki-ki-me) with relatively even stress on each syllable, perhaps with a slight emphasis on the first 'ki'. Avoid stressing the last syllable too heavily.
Example
この薬は効き目が早い。
Related Content
This Word in Other Languages
More health words
しばらく
B1For a while, for some time.
異変がある
B1To have an unusual change or abnormality.
異常な
B1Abnormal; unusual; irregular.
擦り傷
B1Scratch, graze, abrasion.
吸収する
B1To absorb.
禁酒
B1Abstinence from alcohol; the act of refraining from alcohol.
痛む
A2to hurt; to ache
鍼灸
B1Acupuncture and moxibustion; traditional Chinese medicine treatments.
急性的
B1Acute.
急性な
B1Acute