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B1 adverb #3,500 le plus courant 9 min de lecture

科学的に

kagakuteki ni Top 3,500

Entraîne-toi Exemples Notes et astuces 科学的に en 30 secondes

Explication 科学的に in your Level:

At the A1 level, you don't need to use '科学的に' (kagakuteki ni) yourself yet, but you might recognize the first part: '科学' (kagaku), which means 'science'. At this stage, learners focus on simple nouns. You might learn '科学が好きです' (I like science). The word '科学的に' is a bit too complex because it involves the '-teki ni' grammar, which turns a noun into an adverb. Just remember that 'kagaku' is science, and when you see a long word starting with these kanji, it's probably related to something smart or scientific! Think of it like the difference between 'science' and 'scientifically'.

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At the A2 level, you are starting to learn how to describe actions. You might encounter '科学的に' in simple reading passages about nature or health. You should begin to recognize the pattern of [Noun] + 的 + に. This is a very common way to make adverbs in Japanese. You don't need to use it in every conversation, but if you want to say something like 'Let's study scientifically' (科学的に勉強しましょう), it shows you are moving beyond basic sentences. At this level, focus on recognizing it in sentences rather than trying to use it in complex ways.

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B1 is the level where '科学的に' (kagakuteki ni) becomes a key part of your vocabulary. At this stage, you are expected to express opinions and give reasons. Using '科学的に' allows you to say things like 'Scientifically, this is true' (これは科学的に正しいです). It helps you sound more professional and less like a beginner. You should be able to use it with common verbs like '説明する' (to explain) or '分析する' (to analyze). You should also learn the difference between the adverbial form (科学的に) and the adjective form (科学的な), as using the wrong one is a common B1 mistake.

At the B2 level, you should use '科学的に' (kagakuteki ni) fluently in discussions about society, technology, and the environment. You will see it frequently in 'JLPT N2' level reading materials. At this level, you should be comfortable using it in passive sentences, such as '科学的に証明されている' (It is scientifically proven). You should also be able to distinguish it from similar words like '論理的に' (logically) or '客観的に' (objectively) and choose the most appropriate one for the context. Your nuance should be sharp enough to know that '科学的に' implies empirical evidence and data.

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For C1 learners, '科学的に' (kagakuteki ni) is a tool for precise academic or professional communication. You should be able to use it to qualify complex arguments, such as '科学的に見て妥当性を欠いている' (Looking at it scientifically, it lacks validity). At this level, you are not just using the word; you are using it to build sophisticated rhetorical structures. You might also encounter it in historical or philosophical texts discussing the 'scientific revolution' or 'scientific thought.' You should understand its nuances in formal 'Da/De aru' style writing used in Japanese universities.

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At the C2 level, you have a complete mastery of '科学的に' (kagakuteki ni) and its various registers. You can use it with high-level vocabulary and kanji compounds. You might use it in a critique of scientific methodology itself, or in a deep discussion about the limits of scientific inquiry in Japanese culture (e.g., '科学的に解明できない心の領域' - The realms of the heart that cannot be scientifically elucidated). You understand the subtle socio-linguistic weight the word carries when used by different speakers, and you can employ it with perfect accuracy in any professional, academic, or literary context.

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Entraîne-toi Exemples Notes et astuces

科学的に en 30 secondes

Means 'scientifically' or 'in a scientific manner' in Japanese.
Formed by adding 'ni' to the na-adjective 'kagakuteki'.
Used to imply objectivity, evidence, and experimental proof.
Common in academic, medical, and professional contexts.

The Japanese adverb 科学的に (kagakuteki ni) is a foundational term in modern Japanese discourse, serving as the linguistic bridge between raw observation and structured, evidence-based reasoning. Translated primarily as 'scientifically' or 'in a scientific manner,' this word is composed of three distinct parts: 科 (ka - department/branch), 学 (gaku - study/learning), and the suffix 的 (teki - -like/-ish), followed by the adverbial particle に (ni). Together, they form a concept that implies a methodology rooted in the scientific method—reproducibility, objectivity, and empirical evidence.

Objective Proof: Used when discussing facts that have been verified through experiments or rigorous data analysis. For example, '科学的に証明された' (scientifically proven) is a common phrase in marketing for health products or skincare.
Methodological Approach: Describes the process of thinking or analyzing. If someone says '科学的に考えよう' (Let's think scientifically), they are asking to set aside emotions or superstitions in favor of logic and observable data.

この現象は科学的に説明することが可能です。
(This phenomenon can be explained scientifically.)

In daily Japanese life, you will encounter this word frequently in news broadcasts, educational settings, and professional environments. It carries a weight of authority. When a speaker uses 科学的に, they are often attempting to distance themselves from personal bias or 'anecdotal evidence' (体験談 - taikendan). In a culture that highly values precision and technical advancement, being able to frame an argument 'scientifically' is a powerful rhetorical tool.

Historically, the term kagaku (科学) was popularized during the Meiji Restoration as Japanese scholars sought to translate Western concepts. The addition of -teki (的) reflects the modernization of the Japanese language, adopting a Western-style adjectival/adverbial structure to accommodate new ways of categorizing knowledge. Today, it is used not just in hard sciences like physics or biology, but also in social sciences and even in self-improvement contexts.

Daily Use Case: Diet: '科学的に正しいダイエット' (A scientifically correct diet) suggests a plan based on nutritional science rather than a fad.
Daily Use Case: Sports: '科学的に分析されたフォーム' (A scientifically analyzed form/posture) refers to using motion capture or bio-mechanics to improve athletic performance.

幽霊の存在を科学的に否定するのは難しい。
(It is difficult to scientifically deny the existence of ghosts.)

Using 科学的に correctly requires an understanding of its role as a 'na-adjective' turned adverb. In Japanese, the suffix -teki creates an adjective, and adding ni transforms it into an adverb that describes how an action is performed. This section explores the grammatical structures and common verb pairings that define its usage in various contexts.

Structure: [Adverb] + [Verb]: The most common pattern is placing 科学的に directly before a verb like 証明する (to prove), 分析する (to analyze), or 考察する (to consider/examine).

最新の技術で、その成分を科学的に分析しました。
(We analyzed the ingredients scientifically using the latest technology.)

When constructing complex sentences, 科学的に often appears in the middle of the sentence to qualify the method. It is rarely used at the very beginning of a sentence unless for dramatic emphasis. Instead, it follows the subject or the object it is describing. For instance, in 'We should solve this problem scientifically,' the Japanese would be '私たちはこの問題を科学的に解決すべきだ' (Watashitachi wa kono mondai o kagakuteki ni kaiketsu subeki da).

Common Collocations

科学的に証明する (To prove scientifically)
科学的に裏付ける (To support/substantiate scientifically)
科学的に解明する (To elucidate/solve scientifically)
科学的に妥当な (Scientifically valid - here it acts as an adverb for the adjective)

その理論は科学的に根拠がありません。
(That theory has no scientific basis/is not scientifically grounded.)

A key aspect of B1-level Japanese is moving beyond simple 'A is B' sentences. Using 科学的に allows you to express nuance in your reasoning. For example, instead of saying 'This is true,' saying 'This is scientifically proven' (これは科学的に証明されています) adds a layer of professionalism and certainty. It also helps in academic writing where 'objectivity' (客観性 - kyakkansei) is paramount.

In debate or discussion, you might use it to challenge someone's opinion: 'それは科学的に見て正しいですか？' (Is that correct from a scientific perspective?). Here, '見て' (looking from) is added to make the phrase 'Looking at it scientifically,' which is a very natural and polite way to ask for evidence.

Formal vs. Informal: In formal writing (papers, reports), use '科学的に'. In very casual speech, younger people might use '科学的に' as a bit of a joke or exaggeration (e.g., '科学的にありえない!' - That's scientifically impossible!), but it remains largely a neutral to formal term.

You will encounter 科学的に in a variety of real-world Japanese settings, ranging from the mundane to the highly specialized. Understanding these contexts will help you recognize the word's 'vibe' and when it is appropriate to use it yourself.

1. TV Variety Shows and Documentaries: Japanese TV often features 'infotainment' programs where experts explain everyday phenomena. You'll hear phrases like '科学的に検証しました' (We verified this scientifically) when they test if a certain food really helps you lose weight or if a haunted house is actually just old pipes making noise.

この健康法は科学的に効果が認められています。
(The effectiveness of this health method is scientifically recognized.)

2. Product Marketing: In drugstores (yakkyoku) or electronics shops, marketing materials frequently use 科学的に to build trust. A shampoo might be '科学的に開発された' (scientifically developed) to prevent hair loss. This usage appeals to the Japanese consumer's preference for 'quality' and 'reliability' (信頼性 - shinraisei).

3. Academic and Business Reports: In meetings, particularly in R&D (Research and Development) or manufacturing, '科学的に' is essential. It moves the conversation from 'I think' (と思う) to 'The data shows' (データが示す). Phrases like '科学的に裏付けられたデータ' (scientifically backed data) are standard.

感情ではなく、科学的に判断しましょう。
(Let's judge scientifically, not emotionally.)

4. News and Weather Reports: When explaining climate change, earthquakes, or virus outbreaks, announcers use 科学的に to introduce expert opinions. It serves to clarify that the information is not just a rumor but based on meteorological or medical science.

5. Education: Teachers use it to encourage students to use the scientific method. '科学的に実験を行う' (To conduct an experiment scientifically) implies following all the necessary protocols and control groups, rather than just 'playing' with chemicals.

Contextual Summary: Whenever there is a need to distinguish between 'belief' and 'fact', 'superstition' and 'reality', or 'intuition' and 'evidence', 科学的に is the word of choice.

Even intermediate learners often stumble when using 科学的に. The most frequent errors involve confusing it with other 'teki' words or using the wrong particle. Let's break down these pitfalls to ensure your Japanese sounds natural and precise.

Mistake 1: Confusing ~的に with ~な

This is the most common grammatical error. Remember:

科学的な (na) + Noun (e.g., 科学的な根拠 - scientific basis)
科学的に (ni) + Verb/Adjective (e.g., 科学的に考える - think scientifically)

Wrong: 科学的に根拠 (Kagakuteki ni konkyo)
Right: 科学的な根拠 (Kagakuteki na konkyo)

それは科学的に正しいです。
(That is scientifically correct.) - Here 'ni' is correct because it modifies the adjective 'tadashii'.

Mistake 2: Overusing '科学的に' for 'Logic'. While science involves logic, Japanese has a specific word for 'logically': 論理的に (ronriteki ni). If you are talking about the structure of an argument rather than physical evidence or experiments, ronriteki ni is often a better fit. Using kagakuteki ni when you just mean 'it makes sense' can sound slightly odd or overly 'nerdy'.

Mistake 3: Confusing it with 'Objectively'. 客観的に (kyakkanteki ni) means 'objectively' or 'from an outsider's perspective'. While scientific thinking is objective, kyakkanteki ni is used more broadly in social situations. For example, 'Objectively speaking, he is wrong' doesn't necessarily involve science, so you should use kyakkanteki ni.

Mistake 4: Particle Errors in Passive Sentences: When saying 'It was scientifically proven,' learners sometimes forget the passive form of the verb. '科学的に証明した' means 'I/someone proved it scientifically,' while '科学的に証明された' means 'It was proved scientifically.'

この事実はすでに科学的に証明されています。
(This fact has already been scientifically proven.)

Finally, avoid using 科学的に for simple common sense. If you say 'Scientifically, you should wear a coat when it's cold,' it sounds like you've done a study on thermal regulation when you really just mean 'It's common sense.' Use it only when there is an actual 'scientific' element involved.

To truly master 科学的に, you must understand its neighbors in the Japanese vocabulary. These words share similar semantic space but are used in distinct contexts. Choosing the right one will make your Japanese sound sophisticated and precise.

論理的に (Ronriteki ni) - Logically: Focuses on the internal consistency of an argument. If a story has no plot holes, it is ronriteki. It doesn't need lab results, just a clear chain of A -> B -> C.
客観的に (Kyakkanteki ni) - Objectively: Focuses on removing personal feelings (主観 - shukan). You use this when you want to look at a situation from a neutral third-party perspective. '客観的に見て、彼は正しい' (Objectively speaking, he is right).
合理的に (Gōriteki ni) - Rationally / Efficiently: Often used in business to mean 'efficiently' or 'making sense from a cost/benefit perspective.' A 'rational decision' (合理的な判断) is one that achieves the best result with the least effort.

理論と科学の違い:
理論的に (Theoretically) vs 科学的に (Scientifically)

The difference between 理論的に (rironteki ni) and 科学的に (kagakuteki ni) is subtle but important. Rironteki ni refers to what should happen according to a theory (on paper), while kagakuteki ni often implies what has been observed or tested in reality. You might say, 'Theoretically (理論的に) it should work, but scientifically (科学的に) we haven't seen proof yet.'

Another alternative is 学術的に (gakujutsuteki ni), which means 'academically' or 'scholarly.' This is used when discussing things within the context of university research or formal scholarship. If you are writing a thesis, you might discuss a topic gakujutsuteki ni.

Quick Comparison Table

🧪 科学的に: Lab tests, biology, physics, data.
🧠 論理的に: Logic, math, clear thinking.
⚖️ 客観的に: Neutrality, no bias.
💰 合理的に: Efficiency, making sense.

How Formal Is It?

Le savais-tu ?

Before 'Kagaku' became the standard, people used 'Kyuri' (窮理), which means 'seeking the ultimate reason of things'. 'Kagaku' was chosen because it emphasized the specialization of modern disciplines.

Guide de prononciation

UK ka.ɡa.ku.te.ki.ni

US kɑ.ɡɑ.ku.tɛ.ki.ni

Japanese does not have word stress like English. It uses pitch accent. For 'kagakuteki', the pitch is relatively flat (Heiban style).

Rime avec

teki ni (的に) teki ni (敵に - different kanji) geki ni (劇に) reki ni (歴に) eki ni (駅に) seki ni (席に) heki ni (壁に) deki ni (出来に)

Erreurs fréquentes

Pronouncing 'ni' like 'nee' (too long). It should be short.
Putting stress on the 'te' syllable.
Mumbling the 'ku' in 'kagaku'. It should be clear.
Mixing up the 'ka' and 'ga' sounds.
Elongating the 'i' at the end.

Niveau de difficulté

Lecture 3/5

Kanji is common but requires knowing the 'teki ni' pattern.

Écriture 4/5

Writing '科学' correctly takes practice.

Expression orale 3/5

Pronunciation is straightforward but long.

Écoute 2/5

Easy to hear due to the distinct 'teki ni' suffix.

Quoi apprendre ensuite

Prérequis

科学 (Science) 的 (Suffix) に (Particle) 正しい (Correct) 考える (To think)

Apprends ensuite

論理的に (Logically) 客観的に (Objectively) 理論 (Theory) 分析 (Analysis) 証明 (Proof)

Avancé

実証主義 (Positivism) 帰納的 (Inductive) 演繹的 (Deductive) 整合性 (Consistency) 蓋然性 (Probability)

Grammaire à connaître

Na-Adjective + に = Adverb

静かな (shizuka na) -> 静かに (shizuka ni)

Noun + 的 = Na-Adjective

日本 (Nihon) -> 日本的 (Nihonteki)

Passive Voice (~れる/~られる)

証明する (shoumei suru) -> 証明される (shoumei sareru)

Compound Nouns

科学 (kagaku) + 者 (sha) = 科学者 (scientist)

Nominalization with 'No'

証明するのは難しい (shoumei suru no wa muzukashii)

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Exemples par niveau

私は科学が好きです。

I like science.

Simple noun usage: 科学 (kagaku) = science.

これは科学の本です。

This is a science book.

Noun + no + Noun structure.

科学の先生は優しいです。

The science teacher is kind.

Describing a person related to science.

大学で科学を勉強します。

I study science at university.

Direct object 'kagaku' with the verb 'benkyou shimasu'.

科学は面白いです。

Science is interesting.

Using 'kagaku' as the subject of an adjective sentence.

科学のテストがあります。

There is a science test.

Existence sentence with 'arimasu'.

将来、科学者になりたいです。

I want to be a scientist in the future.

科学者 (kagakusha) = scientist.

科学の力はすごいです。

The power of science is amazing.

Using 'kagaku no chikara' (the power of science).

科学的に考えましょう。

Let's think scientifically.

Adverbial form 'kagakuteki ni' modifying 'kangaemashou'.

この方法は科学的に正しいですか？

Is this method scientifically correct?

Modifying the adjective 'tadashii'.

科学的に説明してください。

Please explain it scientifically.

Using 'te-form' for a polite request.

彼は科学的に分析しました。

He analyzed it scientifically.

Past tense of 'bunseki suru' (to analyze).

科学的に証明するのは難しいです。

It is difficult to prove scientifically.

Using the nominalizer 'no' to make a phrase the subject.

科学的に面白い話を聞きました。

I heard a scientifically interesting story.

Adverb modifying the adjective 'omoshiroi'.

科学的な理由があります。

There is a scientific reason.

Note the use of 'na' here because it modifies a noun.

もっと科学的に調べたいです。

I want to investigate more scientifically.

Using 'motto' (more) with the adverb.

このサプリメントは科学的に効果があります。

This supplement is scientifically effective.

Modifying the phrase 'kouka ga arimasu' (has an effect).

その説は科学的に否定されました。

That theory was scientifically disproven.

Passive form: 否定される (hitei sareru).

データを科学的に処理する必要があります。

It is necessary to process the data scientifically.

Using 'hitsuyou ga aru' (there is a necessity).

科学的に見て、それは不可能です。

Looking at it scientifically, that is impossible.

The common phrase 'kagakuteki ni mite' (looking from a scientific view).

科学的に裏付けられた事実だけを信じます。

I only believe facts that are scientifically backed.

Modifying the verb 'urazukerareta' (backed/substantiated).

幽霊を科学的に研究している人もいます。

There are people who study ghosts scientifically.

Modifying 'kenkyuu shite iru' (is researching).

科学的に根拠のある話をしてください。

Please tell us something with scientific grounding.

Adverb modifying the verb 'aru' within a relative clause.

この現象を科学的に解明しましょう。

Let's solve this phenomenon scientifically.

Using 'kaimei suru' (to elucidate/solve).

実験結果は科学的に妥当だと言えます。

It can be said that the experimental results are scientifically valid.

Modifying the adjective 'datou' (valid).

感情論を排して、科学的に議論すべきです。

We should set aside emotionalism and debate scientifically.

Using 'haishite' (excluding/setting aside).

この製品の安全性は科学的に保証されています。

The safety of this product is scientifically guaranteed.

Passive form 'hoshou sarete iru'.

科学的に証明されていない情報を信じるのは危険だ。

It is dangerous to believe information that hasn't been scientifically proven.

Negative passive: 証明されていない.

彼は物事を常に科学的に捉える癖がある。

He has a habit of always perceiving things scientifically.

捉える (toraeru) = to perceive/capture.

科学的に実証されたデータに基づいています。

It is based on scientifically demonstrated data.

実証された (jisshou sareta) = demonstrated/verified.

その違いを科学的に説明するのは容易ではない。

Explaining that difference scientifically is not easy.

容易ではない (youi dewa nai) = not easy.

科学的にアプローチすることで、解決策が見えてきた。

By approaching it scientifically, the solution became clear.

Using 'apuroochi suru' (to approach).

その主張は科学的に見て、あまりに飛躍しすぎている。

Looking at it scientifically, that claim makes too much of a leap.

飛躍する (hiyaku suru) = to make a leap (in logic).

科学的に精緻な分析が求められている。

A scientifically sophisticated analysis is required.

精緻な (seichi na) = minute/sophisticated.

この論文は、歴史的事実を科学的に再評価している。

This paper scientifically re-evaluates historical facts.

再評価する (sai-hyouka suru) = to re-evaluate.

直感は時として、科学的に説明できない力を発揮する。

Intuition sometimes exerts a power that cannot be scientifically explained.

発揮する (hakki suru) = to exert/demonstrate.

環境問題を科学的に考察し、持続可能な社会を目指す。

We will examine environmental issues scientifically and aim for a sustainable society.

考察する (kousatsu suru) = to consider/examine.

彼の理論は、科学的に厳密な検証に耐えうるものだ。

His theory is one that can withstand scientifically rigorous verification.

耐えうる (tae-uru) = can withstand.

科学的に矛盾のない体系を構築することが不可欠だ。

It is essential to construct a system that is scientifically consistent.

矛盾のない (mujun no nai) = consistent/without contradiction.

その現象のメカニズムは、未だ科学的に解明の途上にある。

The mechanism of that phenomenon is still in the process of being scientifically elucidated.

解明の途上にある (kaimei no tojou ni aru) = in the process of elucidation.

科学的に還元できないクオリアの問題を論じる。

Discuss the problem of qualia, which cannot be scientifically reduced.

還元できない (kangen dekinai) = irreducible.

それは科学的に検証可能な命題ではない。

That is not a scientifically verifiable proposition.

命題 (meidai) = proposition.

科学的に洗練された手法を用いて、深層心理に迫る。

Approaching the deep psyche using scientifically sophisticated methods.

洗練された (senren sareta) = sophisticated/refined.

科学的に確証が得られるまで、断定は避けるべきだ。

We should avoid making definitive statements until scientific confirmation is obtained.

確証 (kakushou) = confirmation/corroboration.

客観的事実を科学的に記述することの限界を自覚する。

Be aware of the limits of scientifically describing objective facts.

記述する (kijutsu suru) = to describe/record.

科学的に普遍的な真理を追求する姿勢が求められる。

An attitude of pursuing scientifically universal truths is required.

普遍的な (fuhenteki na) = universal.

その仮説は、科学的に整合性を欠いているとの批判を受けた。

The hypothesis was criticized for lacking scientific consistency.

整合性を欠く (seigousei o kaku) = to lack consistency.

科学的に裏打ちされた知見が、政策決定に反映される。

Insights backed scientifically are reflected in policy decisions.

裏打ちされた (urauchi sareta) = backed/supported.

Collocations courantes

科学的に証明する

科学的に分析する

科学的に正しい

科学的に見て

科学的に裏付ける

科学的に解明する

科学的に説明できる

科学的に根拠がある

科学的に実証する

科学的に不可能な

Phrases Courantes

科学的に証明された

— Scientifically proven. Often used in advertisements.

科学的に証明されたダイエット法。

科学的に見て

— From a scientific point of view. Used to start an opinion.

科学的に見て、その主張は正しい。

科学的に根拠がない

— Scientifically baseless. Used to dismiss rumors.

その噂は科学的に根拠がない。

科学的に裏付けられた

— Scientifically backed/supported by data.

科学的に裏付けられたデータ。

科学的に説明不能

— Scientifically inexplicable. Used for paranormal stuff.

それは科学的に説明不能な出来事だ。

科学的に正しい方法

— The scientifically correct way to do something.

科学的に正しい方法でトレーニングする。

科学的に分析した結果

— The result of a scientific analysis.

科学的に分析した結果、有害物質は見つからなかった。

科学的にありえない

— Scientifically impossible/unthinkable.

そんなことは科学的にありえない。

科学的に処理する

— To process something using scientific methods.

廃棄物を科学的に処理する。

科学的に解明されていない

— Not yet scientifically elucidated/solved.

その病気の原因は科学的に解明されていない。

Souvent confondu avec

科学的に vs 化学的に (kagakuteki ni)

Pronounced the same but means 'chemically'. Context usually clarifies which is meant.

科学的に vs 論理的に (ronriteki ni)

Means 'logically'. Used for the structure of an argument rather than physical data.

科学的に vs 客観的に (kyakkanteki ni)

Means 'objectively'. Used for removing personal bias in general situations.

Expressions idiomatiques

"科学のメスを入れる"

— To apply a scientific analysis to a problem that was previously handled by intuition or tradition.

伝統芸能に科学のメスを入れる。

Formal/Metaphorical

"科学万能主義"

— Scientism; the belief that science can solve all problems.

科学万能主義に陥ってはいけない。

Academic

"科学の光を当てる"

— To bring scientific clarity to a mysterious or dark subject.

神話に科学の光を当てる。

Literary

"科学的根拠"

— Scientific evidence/basis. (Though a noun phrase, it's used like an idiom).

科学的根拠を示してください。

Neutral

"科学の粋を集める"

— To gather the best that science has to offer (for a project).

科学の粋を集めて作られたロケット。

Formal

"科学的にあり得ない"

— Used to express strong disbelief about something supernatural.

それは科学的にあり得ない話だ。

Neutral

"科学の力"

— The power of science (often used in a positive or awe-inspired way).

科学の力で未来を変える。

Neutral

"科学的な目"

— A scientific eye/perspective; being observant and objective.

子供たちに科学的な目を養わせる。

Educational

"科学の進歩"

— The progress of science.

科学の進歩は止まらない。

Neutral

"科学的な裏付け"

— Scientific backing/confirmation.

科学的な裏付けが必要です。

Neutral

Facile à confondre

科学的に vs 化学的に

Exactly the same pronunciation (kagakuteki ni).

科学 (Science) vs 化学 (Chemistry). Context is key. If talking about molecules, it's chemistry. If talking about general methods, it's science.

水は化学的にH2Oです。 (Water is chemically H2O.)

科学的に vs 理論的に

Both deal with 'smart' ways of thinking.

理論 (Theory) is about ideas and rules on paper. 科学 (Science) is about observation and testing in the real world.

理論的には可能だが、実際は難しい。 (Theoretically possible, but difficult in practice.)

科学的に vs 合理的に

Both imply a 'correct' or 'smart' way.

合理 (Rational/Efficient) is about achieving a goal with the least waste. It's often used in business.

合理的に判断する。 (To judge rationally/efficiently.)

科学的に vs 統計的に

Science often uses statistics.

統計 (Statistics) is specifically about numbers and data sets.

統計的に有意な差がある。 (There is a statistically significant difference.)

科学的に vs 学術的に

Both are formal and academic.

学術 (Academic) refers to the entire field of scholarship, including humanities.

学術的に価値がある。 (It has academic value.)

Structures de phrases

科学的に [Verb] ましょう。

科学的に考えましょう。

これは科学的に [Adjective] です。

これは科学的に正しいです。

科学的に [Verb] されています。

科学的に証明されています。

科学的に見て、[Clause]。

科学的に見て、それは不可能です。

科学的に [Verb] 必要があります。

科学的に分析する必要があります。

科学的に [Verb] ことは容易ではない。

科学的に説明することは容易ではない。

科学的に [Noun] を [Verb] する。

科学的にデータを検証する。

科学的に [Verb] しうる [Noun]。

科学的に検証しうる命題。

Famille de mots

Noms

科学 (Science)

科学者 (Scientist)

科学館 (Science museum)

教科 (Subject/Course)

Verbes

科学する (To do science/act scientifically - rare usage)

Adjectifs

科学的な (Scientific - na-adj)

Apparenté

化学 (Chemistry - pronounced the same 'kagaku')

理科 (Science as a school subject)

技術 (Technology)

研究 (Research)

実験 (Experiment)

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Comment l'utiliser

frequency

Common in media, education, and professional settings.

Erreurs courantes

科学的に根拠 → 科学的な根拠
You cannot use 'ni' to modify a noun. You must use 'na'.
科学的に思う → 科学的に考える
'Omou' is more about feeling/subjective thought. 'Kangaeru' is for logical/objective thinking.
科学的を証明する → 科学的に証明する
Missing the particle 'ni' makes the sentence grammatically incorrect.
化学的に (when meaning science) → 科学的に
Confusing 'Chemistry' (化学) with 'Science' (科学) in writing.
科学的に話す (when meaning logic) → 論理的に話す
Using 'scientifically' when you just mean 'logically'.

Astuces

Adverb Placement

Like most Japanese adverbs, '科学的に' usually comes before the verb it modifies. Example: '科学的に分析する'.

Kanji Breakdown

科 (department) + 学 (study) + 的 (target/suffix) + に (adverb marker). Knowing the parts helps you remember the whole.

Trust in Science

Using this word in Japan often builds trust because it suggests a lack of personal bias.

Science vs. Logic

Don't use '科学的に' when you just mean 'logically'. Use '論理的に' for logic puzzles or debates.

Identify the Suffix

The '-teki ni' suffix is a huge clue that the word is an adverb. Listen for it in news reports.

Formal Reports

In professional reports, '科学的に' is preferred over 'なんとなく' (somehow) or 'たぶん' (maybe).

Commercial Clues

Watch Japanese commercials for skincare or vitamins; you'll hear '科学的に' almost every time.

JLPT Contexts

On the JLPT, this word often appears in passages about the environment or health.

Quick Memory

Kagaku (Science) + Teki (Target) = Aiming for Science.

Polite Disagreement

Use '科学的に見て...' to politely disagree with someone by citing facts instead of feelings.

Mémorise-le

Moyen mnémotechnique

Imagine a 'Kag' (Keg) of 'Aku' (Aqua/Water) being tested in a lab by a 'Teki' (Techie) named 'Ni'.

Association visuelle

A person in a white lab coat (Kagaku) holding a target (Teki) and pointing (Ni) at a chart.

Word Web

Science Analysis Data Proof Objectivity Logic Method Evidence

Défi

Try to explain your favorite hobby '科学的に' to a friend using at least three 'kagaku' related words.

Origine du mot

The word 'Kagaku' (科学) was coined during the Meiji period (late 19th century) as a translation for the Western concept of 'Science'. The kanji '科' means 'branch' or 'division', reflecting science's nature as a divided system of knowledge.

Sens originel : A branch of study or a categorized system of learning.

Sino-Japanese (Kango).

Contexte culturel

Be careful not to sound dismissive of someone's feelings by insisting on '科学的に' too much in emotional situations.

English speakers might find the frequent use of 'scientifically' in Japanese commercials a bit clinical, but in Japan, it's a mark of high quality.

Galileo (TV Drama) - A physicist solves crimes '科学的に'. Dr. Stone (Anime) - Building civilization from scratch '科学的に'. Science SARU (Animation Studio) - Namesake implies a scientific approach to art.

Pratique dans la vie réelle

Contextes réels

Health and Diet

科学的に正しい食事
科学的に証明された効果
科学的に分析する
科学的な根拠

Academic Research

科学的に考察する
科学的に検証する
科学的な手法
科学的な裏付け

Product Marketing

科学的に開発された
科学的に認められた
科学的に設計された
科学的な品質

Debate and Discussion

科学的に見て
科学的に説明できない
科学的な根拠を示す
科学的にありえない

Education

科学的に実験する
科学的に学ぶ
科学的な考え方
科学的な興味

Amorces de conversation

"そのダイエット法は、科学的に効果があると言われていますか？ (Is that diet method said to be scientifically effective?)"

"幽霊の存在を科学的に信じますか？ (Do you scientifically believe in the existence of ghosts?)"

"最近、科学的に面白いニュースを見ましたか？ (Have you seen any scientifically interesting news lately?)"

"どうすれば科学的に効率よく勉強できると思いますか？ (How do you think one can study scientifically and efficiently?)"

"科学的に証明されていないことは、信じないほうですか？ (Are you the type who doesn't believe in things not scientifically proven?)"

Sujets d'écriture

今日、科学的に面白いと思ったことを一つ書いてください。 (Write one thing you thought was scientifically interesting today.)

あなたの趣味を、科学的に説明してみてください。 (Try to explain your hobby scientifically.)

科学的に証明されているけれど、信じがたい事実はありますか？ (Is there a fact that is scientifically proven but hard to believe?)

科学的に正しい生活を送るために、何を変えるべきですか？ (What should you change to live a scientifically correct life?)

科学の力について、あなたの考えを教えてください。 (Tell me your thoughts on the power of science.)

Questions fréquentes

10 questions

Yes, but remember that 'kagaku' can mean 'science' (科学) or 'chemistry' (化学). In spoken Japanese, they sound identical. You have to look at the kanji or the context to be sure.

Yes, but it might sound a bit formal or 'nerdy' unless you are joking. For example, '科学的にありえない!' (That's scientifically impossible!) is a common dramatic reaction.

Use 'kagakuteki na' before a noun (e.g., scientific reason). Use 'kagakuteki ni' before a verb or adjective (e.g., think scientifically).

It is a neutral word. It's not inherently polite or impolite, but it is often used in formal settings like work or school.

You add 'hi' (非) to the beginning: '非科学的に' (hikagakuteki ni).

Yes, '科学的に' can be used for psychology, sociology, and other social sciences as long as they use the scientific method.

Yes, it frequently appears in N3 and N2 reading passages and listening sections.

Common verbs include 証明する (prove), 分析する (analyze), 説明する (explain), and 考える (think).

Not directly. You would say '科学的な人' (a scientific person) or '科学的な考え方をする人' (a person who thinks scientifically).

No, it is generally positive as it implies accuracy and reliability. However, it can be used ironically if someone is being overly clinical.

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