C2 Expression フォーマル 2分で読める

على نحو نظري

Theoretically

直訳: On a theoretical manner

Use it to distinguish between a perfect plan and the unpredictable reality of life.

15秒でわかる

  • Means 'in theory' or 'on paper'.
  • Used for hypotheses and untested plans.
  • Common in professional and academic Arabic.

意味

This phrase is used to describe something that works in your head or on paper, but hasn't been tested in the real world yet. It’s the Arabic equivalent of saying 'in theory' or 'on paper.'

主な例文

3 / 6
1

Discussing a new business strategy

الخطة تبدو ممتازة على نحو نظري.

The plan looks excellent theoretically.

💼
2

Talking about a complex recipe

على نحو نظري، الطبخة سهلة جداً.

Theoretically, the dish is very easy.

😊
3

Debating politics with friends

هذا النظام يعمل على نحو نظري فقط.

This system works in theory only.

🤝
🌍

文化的背景

This expression is a hallmark of the 'Al-Fusha' (Modern Standard Arabic) used in media and education. It signifies a speaker who is well-educated and thinking critically. In Arab culture, intellectual debate is highly valued, and using such precise language earns you respect in a discussion.

💡

The 'But' Connection

Pair this phrase with 'لكن' (but) to sound like a native skeptic. It shows you've thought through the risks.

⚠️

Don't Overuse in Dialect

If you're speaking heavy Egyptian or Levantine dialect, this phrase might sound a bit 'too much.' Use it sparingly to maintain a natural flow.

15秒でわかる

  • Means 'in theory' or 'on paper'.
  • Used for hypotheses and untested plans.
  • Common in professional and academic Arabic.

What It Means

Think of this phrase as the 'perfect world' disclaimer. It describes ideas that look flawless until they hit reality. You use it when you are discussing a plan, a scientific concept, or a hypothetical scenario. It implies that while the logic is sound, the actual results might vary.

How To Use It

You can place على نحو نظري at the beginning or the end of your sentence. It acts as a modifier for the entire thought. It’s like putting a frame around your statement that says, 'I am talking about ideas, not necessarily facts.' It often sets the stage for a 'but' (لكن) later in the conversation.

When To Use It

This is perfect for professional settings like business meetings or academic presentations. You’ll also hear it in deep late-night conversations with friends about philosophy or politics. Use it when you want to sound analytical and objective. It’s great for debating football tactics at a cafe too!

When NOT To Use It

Avoid using this in very casual, slang-heavy street talk. It might sound a bit too 'stiff' or academic for a quick grocery run. Also, don't use it for things that are already proven facts. If you say the sun rises in the east 'theoretically,' people will look at you funny.

Cultural Background

Modern Standard Arabic (MSA) evolved to include precise technical terms like this during the 20th century. It reflects the influence of scientific and philosophical discourse in the Arab world. While Arabic is famous for its poetry, this phrase shows its logical, structured side. It’s a staple of news broadcasts and university lectures across the Middle East.

Common Variations

You will often hear من الناحية النظرية, which means 'from a theoretical standpoint.' Another close relative is افتراضياً, which translates to 'hypothetically.' Both carry a similar weight but على نحو نظري feels slightly more formal and structured.

使い方のコツ

This phrase sits comfortably in the 'Formal' register. While it's grammatically simple, its power lies in the nuance of separating thought from action.

💡

The 'But' Connection

Pair this phrase with 'لكن' (but) to sound like a native skeptic. It shows you've thought through the risks.

⚠️

Don't Overuse in Dialect

If you're speaking heavy Egyptian or Levantine dialect, this phrase might sound a bit 'too much.' Use it sparingly to maintain a natural flow.

💬

The Intellectual Flex

Using this phrase in a cafe discussion is a subtle way to signal that you are well-read. It shifts the conversation from gossip to ideas.

例文

6
#1 Discussing a new business strategy
💼

الخطة تبدو ممتازة على نحو نظري.

The plan looks excellent theoretically.

Used to acknowledge a good plan while remaining cautious about implementation.

#2 Talking about a complex recipe
😊

على نحو نظري، الطبخة سهلة جداً.

Theoretically, the dish is very easy.

A humorous way to say it might actually be a disaster in the kitchen.

#3 Debating politics with friends
🤝

هذا النظام يعمل على نحو نظري فقط.

This system works in theory only.

A common way to critique political or social ideas.

#4 Texting a friend about a gym routine
😄

سأستيقظ في الخامسة فجراً، على نحو نظري طبعاً!

I will wake up at 5 AM, theoretically of course!

The 'of course' adds a layer of self-aware humor.

#5 Scientific explanation
👔

يمكن السفر عبر الزمن على نحو نظري.

Time travel is possible theoretically.

Standard academic usage for scientific possibilities.

#6 Discussing a relationship
💭

نحن متوافقون على نحو نظري، لكن الواقع مختلف.

We are compatible theoretically, but reality is different.

Expressing a gap between logic and emotional reality.

自分をテスト

Choose the correct phrase to complete the sentence about a hypothetical project.

المشروع سيربح الملايين ___، لكننا نحتاج لتمويل.

✓ 正解! ✗ おしい! 正解: على نحو نظري

The speaker is discussing a potential profit that hasn't happened yet, making it a theoretical scenario.

Which phrase fits best in a scientific lecture?

تتحرك الجزيئات بسرعة أكبر عند تسخينها ___.

✓ 正解! ✗ おしい! 正解: على نحو نظري

Scientific principles are often introduced as theoretical frameworks before specific experiments.

🎉 スコア: /2

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Formality and Usage Context

Slang

Used in the streets with friends.

Not used here.

Informal

Casual texting or jokes.

Using it to joke about waking up early.

Formal

Business meetings and news.

Discussing economic theories.

Very Formal

Academic papers and legal texts.

Defining a scientific hypothesis.

Where to use 'على نحو نظري'

على نحو نظري
🎓

University Lecture

Explaining physics laws.

💼

Office Meeting

Reviewing a marketing plan.

🌙

Late Night Talk

Debating the meaning of life.

🍰

Kitchen Fail

Wondering why the cake didn't rise.

📺

News Report

Analyzing a peace treaty.

よくある質問

10 問

Yes, but mostly by educated speakers or in professional contexts. In casual settings, it’s often used with a touch of irony or humor, like على نحو نظري، سأدرس اليوم (Theoretically, I will study today).

They are almost identical. من الناحية النظرية means 'from the theoretical side,' while على نحو نظري means 'in a theoretical manner.' Both are interchangeable in 99% of cases.

Absolutely! It’s great for making a joke about a plan that you know probably won't happen. It adds a bit of sophisticated wit to your texts.

It is formal, but not 'royal' formal. It’s standard for work, school, and serious discussions. It’s not something you’d avoid in a polite social gathering.

Not inherently, but it often implies a lack of practical proof. If you say someone is a good leader على نحو نظري, you might be hinting they haven't actually led anyone yet.

The opposite would be على نحو عملي (practically) or في الواقع (in reality/fact).

Not directly. You wouldn't say 'he is theoretical.' You would say his knowledge is theoretical: معرفته نظرية.

Yes, because it belongs to Modern Standard Arabic (MSA), it is understood and used from Morocco to Iraq.

It's pronounced 'Ala nah-win na-tha-ree.' Make sure to emphasize the 'th' sound (like 'the') in نظري.

Yes, starting with على نحو نظري... is a very common way to frame a hypothesis.

関連フレーズ

من الناحية النظرية

From a theoretical perspective

افتراضياً

Hypothetically

على أرض الواقع

On the ground / In reality

مجرد حبر على ورق

Just ink on paper (useless plan)

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