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B1 noun 15 min de lecture

em tese

Entraîne-toi Exemples Notes et astuces em tese en 30 secondes

Explication em tese in your Level:

At the A1 level, you are just starting to learn how to describe the world around you with simple facts. Using 'em tese' might feel a bit advanced, but you can think of it as a fancy way to say 'maybe' or 'the book says.' For example, if your Portuguese teacher says 'The class ends at 10:00,' you might think 'Em tese,' because sometimes classes run late! At this level, don't worry about the complex grammar. Just remember that 'em tese' means 'in theory' and you can put it at the end of a sentence to show you are not 100% sure. It's a great way to start expressing that the world isn't always perfect. You might use it when talking about the weather or a bus schedule. Even with a very small vocabulary, using 'em tese' makes you sound like you are trying to understand how Portuguese speakers think about rules and reality. It's a small step that adds a lot of personality to your basic sentences. Imagine you are talking about your diet. You can say 'Eu não como chocolate... em tese.' This shows you have a sense of humor and understand that rules are sometimes broken. It's a very useful phrase for showing that you know things are not always as simple as they seem in your textbook.

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As an A2 learner, you are building more complex sentences and starting to talk about plans and routines. 'Em tese' becomes very useful here because it helps you describe expectations. You can use it to talk about your work schedule, your study plans, or how things are supposed to work in your city. For instance, 'Em tese, eu estudo duas horas por dia' (In theory, I study two hours a day). This adds a layer of honesty to your speech—you are admitting what you *should* be doing, even if you don't always do it. You will also start to notice this phrase in simple news articles or when people are explaining rules to you. It's important to recognize it so you don't take everything literally. If a sign says a park opens at 8:00, a local might tell you it opens at 8:00 'em tese,' meaning it might actually open at 8:15. At this stage, you should practice placing 'em tese' at the beginning and the end of your sentences. This will help you get used to the rhythm of the phrase. You can also start comparing it to 'na prática' (in practice). For example: 'Em tese é fácil, mas na prática é difícil.' This is a very common and useful sentence structure for A2 students to learn as it allows you to express contrast and difficulty in a natural way.

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At the B1 level, you are expected to handle more abstract topics and express opinions with more nuance. 'Em tese' is a key part of this transition. It allows you to engage in 'what if' scenarios and discuss hypothetical situations. You are no longer just describing facts; you are analyzing them. In a business meeting or a classroom discussion, 'em tese' allows you to acknowledge a rule or a plan while showing that you are thinking critically about its implementation. You should start using it to qualify your statements. Instead of saying 'This will work,' say 'Em tese, isso vai funcionar.' This shows a higher level of linguistic sophistication and a more 'Portuguese' way of thinking. You will also begin to understand the skeptical or ironic undertone that often accompanies this phrase. When someone says 'Em tese, o governo vai baixar os impostos,' you can hear the doubt in their voice. Understanding this cultural context is a big part of reaching B1. You should also be comfortable using 'em tese' with the conditional mood (futuro do pretérito), such as 'Em tese, seria melhor fazer assim.' This combination of advanced grammar and idiomatic phrasing is exactly what B1 level proficiency looks like. It shows you can navigate the gap between the ideal world of logic and the real world of experience.

By the B2 level, you should be using 'em tese' with total confidence in both formal and informal settings. You understand that it's not just a translation of 'in theory,' but a versatile tool for argumentation and social signaling. In professional environments, you use it to navigate complex legal or technical discussions. You can explain how a system *should* work 'em tese' and then provide a detailed analysis of the practical challenges. Your vocabulary is now large enough that you can choose between 'em tese,' 'teoricamente,' 'hipoteticamente,' and 'em princípio' depending on the exact nuance you want to convey. You also recognize the difference between 'em tese' and 'na tese' and never make that mistake. At B2, you are also sensitive to the irony and sarcasm that 'em tese' can carry. You can use it to gently mock an idealistic plan or to point out the gap between a person's words and their actions. Your ability to use the phrase to structure long, complex arguments is a hallmark of this level. For example, you might start a paragraph with 'Em tese...' to set up a logical framework, then spend the rest of the paragraph dismantling it with real-world examples. This shows a high level of rhetorical skill and a deep understanding of how Portuguese is used to debate and persuade.

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At the C1 level, your use of 'em tese' is indistinguishable from that of a highly educated native speaker. You use it to navigate the most complex and nuanced discussions, from legal philosophy to high-level scientific debate. You are aware of the historical and academic origins of the phrase and how it has evolved into a common idiomatic expression. In your writing, you use 'em tese' to create a sophisticated dialogue between different points of view. You might use it to introduce a 'straw man' argument that you intend to refute, or to acknowledge the theoretical validity of a point before explaining why it is practically irrelevant. You also understand the subtle regional differences in how the phrase might be used or the specific professional 'jargon' contexts where it appears most frequently. Your use of 'em tese' is perfectly integrated with complex grammatical structures, such as the personal infinitive or the future subjunctive, showing a seamless command of the language's most difficult features. You can also pick up on very subtle shifts in meaning based on the speaker's intonation or the specific context of the conversation. For you, 'em tese' is not just a phrase; it's a precision instrument for intellectual and social navigation.

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At the C2 level, you have achieved a mastery of 'em tese' that allows you to play with the language. You can use the phrase with a level of irony, wit, or poetic nuance that adds depth to your communication. You might use it in a literary context to explore the tension between a character's ideals and their reality. In the highest levels of professional or academic life, you use 'em tese' to challenge established paradigms or to propose new, revolutionary theories. You are completely comfortable with the phrase in all its forms and can switch between formal and informal registers with ease. You might even use 'em tese' in creative ways, perhaps as a title for a piece of writing or as a recurring motif in a speech. Your understanding of the phrase is deeply rooted in the culture and history of the Portuguese-speaking world, and you can discuss its usage with the same level of insight as a linguist. At this level, 'em tese' is just one of many tools in your extensive linguistic toolkit, used with effortless precision to convey exactly the right shade of meaning, doubt, or logical possibility. You are not just speaking Portuguese; you are living in it, and 'em tese' is a natural part of your intellectual landscape.

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Entraîne-toi Exemples Notes et astuces

em tese en 30 secondes

Used to describe things as they should be according to rules or logic, often implying skepticism.
Functions as 'in theory' or 'hypothetically' and is very common in professional and academic Portuguese.
Can be placed at the start, middle, or end of a sentence to qualify the speaker's certainty.
Essential for B1+ learners to navigate the gap between formal rules and practical daily reality.

The Portuguese expression em tese is a fundamental phrase for anyone moving beyond basic conversational Portuguese into the realm of abstract thought, professional discourse, and nuanced social interaction. At its core, it translates to "in theory" or "hypothetically." However, its usage in the Lusophone world, particularly in Brazil and Portugal, carries a weight of skepticism that is often more pronounced than its English counterpart. When a Portuguese speaker uses this phrase, they are frequently signaling a divide between the ideal world of rules, plans, and logic, and the messy, unpredictable reality of daily life. It is the linguistic bridge between what should happen and what actually happens.

Literal Meaning: The word 'tese' means 'thesis' or 'proposition.' Therefore, 'em tese' literally means 'within the framework of a proposition.' It suggests a conclusion drawn from established premises before they are tested against the real world.

In professional environments, you will hear em tese used to describe project timelines, budget allocations, or legal interpretations. For instance, a lawyer might say that a certain action is legal 'em tese,' implying that while the written law supports it, the specific circumstances or a particular judge's temperament might lead to a different outcome. This nuance is crucial for B1 learners to grasp because it moves the conversation from black-and-white facts to the gray areas of probability and doubt. It is a tool for intellectual humility, allowing the speaker to state a fact while simultaneously hedging their bets against failure or unforeseen complications.

O projeto é viável em tese, mas precisamos de mais investimento.

Culturally, the expression also plays a role in the famous 'jeitinho brasileiro' or the Portuguese sense of 'desenrascar.' Because rules in these cultures can sometimes be rigid or bureaucratic, people often acknowledge the rule 'em tese' before explaining how they intend to navigate around it or why the rule might not apply in a specific, practical sense. It is a polite way to acknowledge authority or logic while maintaining a practical focus on the immediate obstacle. If someone asks if a train will arrive on time, a local might respond, 'Em tese, sim,' which serves as a gentle warning that while the schedule says one thing, the reality of the railway system might say another.

Furthermore, the phrase is ubiquitous in academic and scientific discussions. When discussing a scientific model or a sociological theory, scholars use em tese to distinguish between the controlled environment of a laboratory or a mathematical model and the complex variables of the natural world. It allows for the exploration of possibilities without claiming absolute certainty. For a learner, mastering this phrase is a sign of reaching the B1 level because it requires the speaker to think about the relationship between different clauses and the validity of information being presented. It is not just a vocabulary word; it is a conceptual tool for critical thinking in a second language.

Common Contexts: Academic debates, legal consultations, project management meetings, and skeptical daily conversations about schedules or promises.

Em tese, todos os cidadãos são iguais perante a lei.

Finally, it is worth noting that 'em tese' is almost always used as an adverbial adjunct. It can appear at the beginning of a sentence to set the stage for a hypothetical scenario, or at the end to add a layer of doubt to a statement previously made. Unlike 'teoricamente,' which can sometimes feel a bit cold or purely scientific, 'em tese' feels more integrated into the flow of natural speech. It is a phrase that invites the listener to consider the 'what if' and acknowledges the complexity of the world we live in. By using it, you demonstrate not only your command of Portuguese grammar but also your understanding of the subtle social cues and the inherent uncertainty that Portuguese speakers often weave into their communication.

Using em tese correctly involves understanding its syntactic flexibility and its role as a modal qualifier. In most cases, it functions as a parenthetical expression, meaning it can be moved around the sentence to shift the emphasis. When placed at the beginning of a sentence, it immediately signals to the listener that the following information is not a guaranteed fact but a logical possibility or a theoretical standard. This is particularly useful in formal presentations or when explaining a complex system where you want to establish the 'ideal' state before discussing practical exceptions.

Sentence Initial Placement: "Em tese, o novo software deve aumentar a produtividade em vinte por cento." (In theory, the new software should increase productivity by twenty percent.) Here, the focus is on the expectation.

When placed in the middle of a sentence, usually set off by commas, em tese acts as a subtle reminder of the hypothetical nature of the subject. This is common in legal or academic writing where precision is paramount. It allows the writer to maintain a neutral stance while describing a mechanism or a law. For example, saying "O réu, em tese, teria o direito de permanecer calado" (The defendant, in theory, would have the right to remain silent) emphasizes that the right exists as a principle, regardless of the specific circumstances of the case at hand.

Esta dieta, em tese, ajuda a acelerar o metabolismo.

The most common placement in casual conversation is at the end of a sentence. In this position, it often serves as a 'safety net' for the speaker. If you make a claim but aren't 100% sure it will hold true in practice, adding em tese at the end protects your credibility. It acknowledges that while you believe what you're saying is logically sound, you recognize that external factors could change the outcome. "A gente vai chegar às oito, em tese" (We will arrive at eight, in theory) is a classic example of this usage, where the speaker account for potential traffic or delays.

One of the most important aspects of using em tese is the verb tense that follows it. Often, it is paired with the conditional mood (futuro do pretérito) to reinforce the hypothetical nature of the statement. Verbs like 'deveria' (should), 'poderia' (could), or 'seria' (would be) are natural partners for this expression. However, it can also be used with the present indicative when stating a general rule or a scientific fact that is currently accepted as true in theory. Understanding this relationship between the expression and the verb mood is a key milestone for B1 and B2 learners.

Verb Pairing: Use with 'deveria' (should) for expectations: "Em tese, deveria funcionar." Use with 'é' (is) for theoretical facts: "Em tese, a água ferve a cem graus."

A vacina, em tese, protege contra todas as variantes conhecidas.

Lastly, consider the contrastive use of em tese. It is frequently used in 'but' (mas) or 'however' (no entanto) constructions to highlight the gap between theory and practice. "Em tese, o plano é perfeito, mas na prática é impossível de executar." This structure is a powerful way to build an argument in Portuguese, showing that you have analyzed both the logical potential and the practical limitations of a situation. For learners, practicing this 'Em tese, X, mas na prática, Y' structure is an excellent way to improve both fluency and argumentative skills in the language.

To truly understand em tese, you need to step out of the textbook and into the environments where it thrives. One of the most common places you will hear this is in a Brazilian or Portuguese newsroom or during a political debate. Journalists and commentators use it constantly to discuss government proposals, economic forecasts, and legal reforms. Because politics is often a field of unfulfilled promises, em tese allows these speakers to report on what a new law is supposed to do without necessarily endorsing its eventual success. It provides a layer of professional distance and objectivity.

In the Media: "Em tese, a nova reforma tributária vai simplificar a vida do contribuinte." (In theory, the new tax reform will simplify the taxpayer's life.) Note the cautious tone.

Another prime location for this phrase is the university classroom. In lectures ranging from physics to philosophy, professors use em tese to describe models that operate under ideal conditions—for example, a world without friction or a society of perfectly rational actors. If you are a student in a Lusophone country, you will hear this phrase multiple times a day. It is the language of the 'ideal case scenario.' When a professor says, 'Em tese, a democracia funciona assim,' they are often preparing the students for a lengthy discussion on why, in the real world, it often doesn't.

O mercado se autorregula, em tese, sem intervenção estatal.

In the corporate world, em tese is the language of the skeptic in the meeting room. When a manager presents a rosy five-year plan, a seasoned employee might mutter, 'Isso funciona bem em tese.' It’s a polite way of saying the plan is idealistic or lacks a grounding in current market realities. It’s also used when discussing company policies that everyone knows are loosely enforced. If you ask a colleague if you can leave early on a Friday, they might respond, 'Em tese, o horário é até as seis, mas o chefe nunca está aqui depois das cinco.' Here, the phrase highlights the irrelevance of the official rule.

You will also hear this phrase frequently in legal contexts, even outside of a courtroom. In Brazil, for example, the legal system is complex and often features laws that are famously 'não pegam' (don't catch on or aren't enforced). People will say, 'Em tese, é proibido estacionar aqui,' while looking at a line of cars parked exactly in that spot. In this context, the phrase is almost synonymous with 'officially' but with an added layer of 'but everyone ignores it.' For a learner, hearing this phrase in the wild is a great opportunity to observe the discrepancy between the formal rules of a culture and its actual social practices.

Daily Life: Used when discussing diets, exercise routines, or New Year's resolutions. "Em tese, eu não como açúcar durante a semana."

Em tese, o ônibus passa a cada dez minutos.

Finally, 'em tese' appears often in literature and high-end journalism (like in 'Folha de S.Paulo' or 'Público') to discuss philosophical or ethical dilemmas. It’s a phrase that invites the reader to step into a thought experiment. If you are reading a long-form essay about the future of Artificial Intelligence, you will likely see the author use 'em tese' to describe the potential benefits of the technology, only to follow it up with a 'por outro lado' (on the other hand) to discuss the risks. It is a hallmark of sophisticated, balanced writing in Portuguese.

One of the most frequent mistakes English speakers make when learning em tese is confusing it with the prepositional phrase 'na tese.' While 'em tese' means 'in theory' or 'hypothetically,' 'na tese' literally means 'in the thesis' (referring to a specific academic document). For example, if you say "Na tese, o autor argumenta que..." you are talking about a specific book or dissertation. If you say "Em tese, o autor argumenta que..." you are saying that, hypothetically, the author argues that. This small change from 'em' to 'na' (em + a) completely changes the scope of your sentence from an abstract concept to a physical or specific text.

The 'Em' vs. 'Na' Trap: 'Em tese' = Hypothetically. 'Na tese' = In that specific academic paper. Do not mix them up in professional or academic settings.

Another common error is the over-reliance on the English-sounding 'teoricamente.' While 'teoricamente' is a perfectly valid Portuguese word and a direct synonym, it can sometimes sound a bit too formal or even pedantic in casual conversation. Beginners often default to 'teoricamente' because it looks like 'theoretically,' but em tese is often the more natural, idiomatic choice for everyday skepticism. Using 'em tese' makes you sound more like a native speaker who has absorbed the rhythms of the language rather than someone translating directly from English in their head.

Incorrect: Na tese, tudo vai dar certo amanhã.
Correct: Em tese, tudo vai dar certo amanhã.

Learners also sometimes struggle with the placement of the phrase in relation to the verb 'ser.' You might hear a student say "Isso é em tese verdade," which is a literal translation of "This is in theory true." While understandable, a native speaker is much more likely to say "Isso, em tese, é verdade" or "Isso é verdade, em tese." The parenthetical nature of the phrase means it usually works best when it's slightly separated from the main verb-adjective pair. This subtle shift in word order can significantly improve how 'natural' your Portuguese sounds to native ears.

A more advanced mistake involves the tone or 'register.' While em tese is very common, using it in extremely informal, slang-heavy environments might feel a bit out of place unless you are being intentionally ironic. In very slangy Brazilian Portuguese, someone might use 'tipo' or 'supostamente' or even just a skeptical facial expression instead. However, for most B1-C2 learners, sticking with 'em tese' is a safe and effective way to communicate. Just be aware that it carries a certain level of intellectualism, and using it too many times in a single conversation can make you sound a bit like you're trying too hard to be precise.

Register Errors: Using 'em tese' in a very casual bar setting might sound slightly formal, but it is rarely 'wrong.' It just adds a specific flavor of intellectual doubt to your speech.

Avoid: Eu vou, de tese.
Use: Eu vou, em tese.

Finally, don't forget that em tese implies a logical structure. Using it for something that is purely a matter of chance—like winning the lottery—is less common than using it for something that follows a set of rules or a plan. You wouldn't say "Em tese, eu vou ganhar na loteria" because there is no 'thesis' or logical plan to winning. You would say "Em tese, as chances de ganhar são de uma em um milhão." Use the phrase when there is a 'theory' or a 'rule' involved, not just for general uncertainty.

Understanding the family of words related to em tese helps you choose the perfect nuance for any situation. The most direct synonym is teoricamente. As mentioned before, they are often interchangeable, but 'teoricamente' feels slightly more scientific or formal. If you are discussing a mathematical proof, 'teoricamente' is perfect. If you are complaining about the bus schedule, 'em tese' is more idiomatic. Both words serve the purpose of separating the ideal from the real, but 'em tese' has a bit more 'soul' in conversational Portuguese.

Em tese vs. Teoricamente: 'Em tese' is more common in speech and implies a skepticism about rules. 'Teoricamente' is more formal and implies a scientific or academic basis.

Another excellent alternative is hipoteticamente. This word is specifically used when you are setting up a 'what if' scenario that you know is not real. While 'em tese' often refers to rules that *should* be happening now, 'hipoteticamente' is used for thought experiments. "Hipoteticamente, se tivéssemos dinheiro infinito, o que faríamos?" This word is longer and more formal, making it less common in quick daily exchanges but vital for philosophical or strategic planning discussions.

Vamos falar hipoteticamente sobre o futuro da empresa.

If you want to sound a bit more skeptical or even suspicious, you can use supostamente (supposedly). This word carries a much stronger implication that the statement might be false. While 'em tese' suggests that something is logically sound but practically difficult, 'supostamente' suggests that someone is *claiming* something to be true, but you have your doubts about their honesty. "Ele supostamente terminou o trabalho" implies you don't really believe he did, whereas "Ele terminou o trabalho em tese" implies he did the work, but maybe not to the required standard or in the way expected.

For a more formal, legalistic alternative, look at em princípio (in principle). This is very close to 'em tese' but is often used in negotiations or agreements. "Em princípio, concordamos com os termos" means you agree with the general idea, but the specific details still need to be worked out. It is a very useful phrase for business meetings where you want to show cooperation without committing to every single detail immediately. It is slightly more 'positive' than 'em tese,' which often leans towards skepticism.

Comparison Table

Em tese: Logic vs. Reality (Common, idiomatic)
Teoricamente: Scientific/Academic (Formal)
Supostamente: Doubting a claim (Skeptical)
Em princípio: Agreeing with the core idea (Negotiation)

Em princípio, a ideia é boa, mas o custo é alto.

Lastly, in very informal Brazilian Portuguese, you might hear people use pelo que dizem (from what they say) or na teoria (in the theory). While 'na teoria' is technically a synonym, 'em tese' sounds slightly more educated. 'Pelo que dizem' is much more focused on hearsay and rumors. As a learner, having this range of options allows you to tailor your speech to your audience, moving from the street-smart skepticism of 'supostamente' to the polished professional logic of 'em tese' or 'em princípio.'

How Formal Is It?

Le savais-tu ?

In ancient Greek, 'thesis' was also used in music and poetry to describe the 'downbeat' or the stressed part of a foot of verse.

Guide de prononciation

UK ẽj ˈtɛ.zi

US ẽj ˈtɛ.zi

The stress is on the first syllable of 'tese' (TE-se).

Rime avec

hipótese síntese antítese parentese exegese diocese gênese prótese

Erreurs fréquentes

Pronouncing the 'm' in 'em' as a hard consonant. It should be a nasalization of the vowel.
Pronouncing 'tese' as 'teez' or 'tays'. The 'e' is open (like in 'egg').
Putting the stress on the last syllable.
Forgetting the nasal sound entirely and saying 'eh tese'.
Confusing the 's' sound in 'tese' with a 'ss' sound; it is a voiced 'z' sound.

Niveau de difficulté

Lecture 3/5

Easy to recognize in texts once you know the meaning.

Écriture 4/5

Requires understanding of where to place the phrase for natural flow.

Expression orale 5/5

Requires mastering the nasal 'em' and the open 'e' in 'tese'.

Écoute 4/5

Important to catch the tone of voice to understand the level of skepticism.

Quoi apprendre ensuite

Prérequis

teoria regra plano prática mas

Apprends ensuite

hipoteticamente supostamente em princípio no entanto

Avancé

conjetura pressuposto axioma paradigma premissa

Grammaire à connaître

Nasal Vowels

The 'em' in 'em tese' is a nasal vowel, not a consonant 'm'.

Conditional Mood

Em tese, tudo *seria* mais fácil se tivéssemos dinheiro.

Adverbial Locutions

'Em tese' functions as an adverb, modifying the whole sentence.

Contrastive Conjunctions

Em tese é bom, *mas* na prática é ruim.

Parenthetical Commas

O plano, *em tese*, é excelente.

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Exemples par niveau

O ônibus passa às nove, em tese.

The bus passes at nine, in theory.

Simple sentence with 'em tese' at the end for doubt.

Em tese, hoje não vai chover.

In theory, it's not going to rain today.

Using 'em tese' at the start to qualify a weather forecast.

Eu falo português, em tese.

I speak Portuguese, in theory.

A humorous way to show you are still learning.

Em tese, a loja abre cedo.

In theory, the store opens early.

Using 'em tese' with a simple present verb.

O café é grátis, em tese.

The coffee is free, in theory.

Expressing skepticism about a benefit.

Em tese, o exercício é fácil.

In theory, the exercise is easy.

Comparing theoretical ease with practical difficulty.

O trem chega logo, em tese.

The train arrives soon, in theory.

Using 'logo' (soon) with 'em tese'.

Em tese, todos gostam de música.

In theory, everyone likes music.

Making a general statement with a qualifier.

Em tese, o plano deveria funcionar sem problemas.

In theory, the plan should work without problems.

Uses 'deveria' (conditional) which is common with 'em tese'.

Nós vamos terminar o trabalho hoje, em tese.

We are going to finish the work today, in theory.

Future intent qualified by theoretical possibility.

Em tese, a dieta permite comer frutas.

In theory, the diet allows eating fruit.

Discussing rules of a specific system (a diet).

O hotel é perto da praia, em tese.

The hotel is near the beach, in theory.

Skepticism about a marketing claim.

Em tese, ele sabe como chegar lá.

In theory, he knows how to get there.

Doubting someone's knowledge or competence.

A aula dura uma hora, em tese.

The class lasts one hour, in theory.

Discussing scheduled time vs. actual time.

Em tese, o remédio não tem efeitos colaterais.

In theory, the medicine has no side effects.

Qualifying a medical or scientific claim.

O projeto é simples em tese, mas caro na prática.

The project is simple in theory, but expensive in practice.

The classic 'em tese vs. na prática' contrast.

Em tese, a nova lei deveria proteger os direitos dos trabalhadores.

In theory, the new law should protect workers' rights.

Discussing social and legal expectations.

O sistema é seguro em tese, mas sempre há riscos.

The system is secure in theory, but there are always risks.

Acknowledging theoretical safety while noting practical risks.

Em tese, o mercado deveria se equilibrar sozinho.

In theory, the market should balance itself.

Discussing economic theories.

A viagem leva cinco horas, em tese, se não houver trânsito.

The trip takes five hours, in theory, if there is no traffic.

Using a conditional clause ('se...') with 'em tese'.

Em tese, todos têm as mesmas oportunidades na vida.

In theory, everyone has the same opportunities in life.

A more philosophical or sociological application.

O software é compatível com o seu computador, em tese.

The software is compatible with your computer, in theory.

Technical qualification of a claim.

Em tese, o diretor concordou com a nossa proposta.

In theory, the director agreed with our proposal.

Implies that the agreement might not be final or firm.

A democracia, em tese, é o melhor sistema político.

Democracy, in theory, is the best political system.

Parenthetical use of 'em tese' in a complex sentence.

Em tese, a empresa poderia expandir para o exterior no próximo ano.

In theory, the company could expand abroad next year.

Using 'poderia' to discuss strategic possibilities.

O modelo econômico funciona em tese, mas ignora a inflação.

The economic model works in theory, but ignores inflation.

Criticizing a theory for its practical omissions.

Em tese, a liberdade de expressão é um direito inalienável.

In theory, freedom of expression is an inalienable right.

Discussing high-level legal and ethical concepts.

A solução parece perfeita em tese, porém a implementação será difícil.

The solution seems perfect in theory, however, implementation will be difficult.

Using 'porém' (however) to create contrast.

Em tese, o aumento do salário mínimo deveria reduzir a pobreza.

In theory, the increase in the minimum wage should reduce poverty.

Analyzing the intended effects of a policy.

O experimento foi um sucesso em tese, mas os dados são inconclusivos.

The experiment was a success in theory, but the data is inconclusive.

Distinguishing between theoretical success and empirical data.

Em tese, qualquer um pode aprender a programar em seis meses.

In theory, anyone can learn to program in six months.

Generalizing a possibility with a specific timeframe.

A estratégia de marketing, em tese, atrairia o público jovem.

The marketing strategy, in theory, would attract a young audience.

Using 'atrairia' (would attract) to show hypothetical outcome.

Em tese, o contrato é juridicamente vinculativo, mas há brechas.

In theory, the contract is legally binding, but there are loopholes.

Legal nuance regarding the strength of a document.

A arquitetura do prédio, em tese, suportaria um terremoto de grande magnitude.

The building's architecture, in theory, would withstand a high-magnitude earthquake.

Engineering specification qualified by 'em tese'.

Em tese, a globalização deveria promover a convergência econômica entre as nações.

In theory, globalization should promote economic convergence among nations.

Discussing complex geopolitical theories.

O algoritmo, em tese, elimina o viés humano no processo de seleção.

The algorithm, in theory, eliminates human bias in the selection process.

Technological claim with a critical perspective.

Em tese, a meritocracia premiaria os mais talentosos e esforçados.

In theory, meritocracy would reward the most talented and hardworking.

Sociological critique using 'premiaria' (would reward).

A teoria da relatividade, em tese, permite a existência de buracos de minhoca.

The theory of relativity, in theory, allows for the existence of wormholes.

Scientific application of the phrase.

Em tese, a neutralidade da rede garante o acesso igualitário à informação.

In theory, net neutrality guarantees equal access to information.

Discussing digital rights and principles.

O conceito de soberania popular, em tese, fundamenta o Estado Moderno.

The concept of popular sovereignty, in theory, underpins the Modern State.

Political science and legal philosophy.

Em tese, o imperativo categórico de Kant resolveria todos os dilemas éticos.

In theory, Kant's categorical imperative would resolve all ethical dilemmas.

High-level philosophical discussion.

A coexistência pacífica, em tese, pressupõe o respeito mútuo à autodeterminação.

Peaceful coexistence, in theory, presupposes mutual respect for self-determination.

Diplomatic and geopolitical discourse.

Em tese, a inteligência artificial generativa poderia substituir a criatividade humana.

In theory, generative artificial intelligence could replace human creativity.

Debating modern technological disruptions.

O equilíbrio de Nash, em tese, descreve o resultado de interações estratégicas.

Nash equilibrium, in theory, describes the outcome of strategic interactions.

Game theory and advanced economics.

Em tese, o princípio da precaução deveria orientar as políticas ambientais.

In theory, the precautionary principle should guide environmental policies.

Legal and environmental philosophy.

A desconstrução derridiana, em tese, revela as contradições inerentes a qualquer texto.

Derridean deconstruction, in theory, reveals the inherent contradictions in any text.

Literary theory and post-structuralism.

Em tese, a utopia é um horizonte que serve para nos fazer caminhar.

In theory, utopia is a horizon that serves to make us keep walking.

Poetic and metaphorical use of 'em tese'.

O mercado de capitais, em tese, aloca recursos de forma eficiente na economia.

The capital market, in theory, allocates resources efficiently in the economy.

Advanced financial and economic analysis.

Collocations courantes

aceitável em tese

funcionar em tese

correto em tese

verdadeiro em tese

viável em tese

possível em tese

válido em tese

existir em tese

aplicável em tese

simples em tese

Phrases Courantes

Em tese, sim.

— A cautious way to say yes, implying there might be complications.

— Você vai terminar hoje? — Em tese, sim.

Tudo certo em tese.

— Everything is fine according to the plan, but reality might differ.

O evento está tudo certo em tese, mas falta o som.

Em tese é uma coisa...

— The start of a comparison between theory and a messy reality.

Em tese é uma coisa, mas na vida real é outra.

Só em tese mesmo.

— A very skeptical way to say something only exists in theory and never in reality.

Liberdade total? Só em tese mesmo.

Em tese, não deveria.

— Used when something unexpected happens that contradicts the rules.

A máquina quebrou? Em tese, não deveria.

Pelo menos em tese.

— Used to emphasize that the only place something works is in theory.

Somos amigos, pelo menos em tese.

Em tese e na prática.

— Used to describe something that is consistently true in all aspects.

O sistema é eficiente em tese e na prática.

Válido apenas em tese.

— Used to dismiss an idea as being purely theoretical and useless.

Esse desconto é válido apenas em tese, ninguém consegue usar.

Em tese, tudo é possível.

— A philosophical way to express that anything could happen.

Não desista, em tese, tudo é possível.

Isso funciona em tese?

— A question asking if an idea is logically sound.

Sua ideia é interessante, mas isso funciona em tese?

Souvent confondu avec

em tese vs Na tese

Means 'in the thesis' (a specific document), not 'in theory'.

em tese vs Em teoria

Very similar, but 'em tese' is often preferred in legal or idiomatic contexts.

em tese vs De tese

This is not a valid Portuguese expression; always use 'em'.

Expressions idiomatiques

"ficar na tese"

— To stay in the planning phase and never take action.

Muitos projetos bons acabam ficando apenas na tese.

Neutral

"teoria da conspiração"

— A conspiracy theory (related to the idea of 'tese' as a proposition).

Ele acredita em qualquer teoria da conspiração.

Common

"defender uma tese"

— To strongly argue for a specific point of view.

Ela defende a tese de que o café faz bem à saúde.

Academic/Neutral

"cair por terra"

— When a theory or 'tese' is proven wrong by facts.

Sua tese caiu por terra depois do experimento.

Idiomatic

"falar por falar"

— To talk without a solid basis, often the opposite of a well-founded 'tese'.

Não leve a sério, ele está apenas falando por falar.

Informal

"pôr em pratos limpos"

— To clarify a situation, moving from 'em tese' to the truth.

Vamos pôr a situação em pratos limpos agora.

Idiomatic

"dar pano para mangas"

— Something that provides a lot of material for discussion or 'teses'.

Esse assunto ainda vai dar muito pano para mangas.

Informal

"entre o dizer e o fazer"

— The gap between theory (dizer) and practice (fazer).

Entre o dizer e o fazer há um grande abismo.

Proverbial

"fazer castelos no ar"

— To create idealistic plans that only exist 'em tese'.

Pare de fazer castelos no ar e comece a trabalhar.

Literary

"tirar a prova dos nove"

— To test a theory or 'tese' to see if it's actually true.

Vamos tirar a prova dos nove e ver se funciona.

Common

Facile à confondre

em tese vs hipótese

Both deal with possibilities.

'Em tese' is about established rules/logic; 'hipótese' is an unproven guess.

Em tese, a lei existe. Temos a hipótese de que ele a quebrou.

em tese vs supostamente

Both imply something might not be true.

'Supostamente' focuses on rumors; 'em tese' focuses on logic.

Ele supostamente mentiu. Em tese, ele deveria dizer a verdade.

em tese vs teoricamente

Direct synonyms.

'Teoricamente' is more formal/academic; 'em tese' is more idiomatic.

Teoricamente, a física explica. Em tese, o ônibus chega às dez.

em tese vs aparentemente

Both deal with how things look.

'Aparentemente' is based on visual evidence; 'em tese' is based on rules.

Aparentemente está quebrado. Em tese, deveria durar anos.

em tese vs em princípio

Both deal with core ideas.

'Em princípio' is for general agreement; 'em tese' is for logical possibility.

Em princípio, eu aceito. Em tese, o plano funciona.

Structures de phrases

Em tese, [Simple Fact].

Em tese, o café está quente.

[Action], em tese.

Eu vou viajar amanhã, em tese.

Em tese, [Subject] deveria [Verb].

Em tese, o governo deveria ajudar.

[Subject], em tese, é [Adjective].

O plano, em tese, é bom.

Em tese, [Action] mas na prática [Contrast].

Em tese ele ajuda, mas na prática ele some.

Embora em tese seja [State], na realidade [Fact].

Embora em tese seja ilegal, na realidade acontece muito.

[Concept] fundamenta-se, em tese, em [Principle].

A democracia fundamenta-se, em tese, na igualdade.

Sob a égide do que se convencionou chamar, em tese, de [Concept]...

Sob a égide do que se convencionou chamar, em tese, de justiça...

Famille de mots

Noms

tese (thesis/proposition)

teoria (theory)

teórico (theoretician)

Verbes

teorizar (to theorize)

Adjectifs

teórico (theoretical)

hipotético (hypothetical)

Apparenté

antítese

síntese

hipótese

prótese

parentese

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Comment l'utiliser

frequency

High (especially in news, business, and academic settings).

Erreurs courantes

Na tese, o plano é bom. → Em tese, o plano é bom.
Using 'na' implies a specific document. 'Em' is for the general concept of theory.
Isso é verdade de tese. → Isso é verdade em tese.
The preposition 'de' is incorrect here. The set phrase always uses 'em'.
Em tese, eu vou ganhar a loteria. → Hipoteticamente, eu poderia ganhar a loteria.
'Em tese' implies a logical rule or plan. Lottery is pure chance, so 'hipoteticamente' fits better.
Pronouncing 'tese' with a closed 'e' (like 'tease'). → Pronounce it with an open 'e' (like 'teh-ze').
A closed 'e' changes the vowel quality and can make the word hard to recognize.
Using 'em tese' for things that are 100% certain. → Use 'de fato' or 'realmente' for certainties.
'Em tese' always carries a hint of 'but maybe not in reality'.

Astuces

Placement Matters

Put 'em tese' at the end of a sentence for a more casual, skeptical feel. Put it at the beginning for a more formal, explanatory tone.

Conditional Mood

Pair 'em tese' with verbs in the conditional (e.g., seria, faria, iria) to sound more natural when discussing hypothetical outcomes.

The Skeptic's Tool

Use it when discussing government promises or public transport to blend in with the local culture of healthy skepticism.

Academic Precision

In essays, use 'em tese' to define your variables before you present your actual findings. It shows you understand scientific methodology.

The Open 'E'

Make sure the 'e' in 'tese' is open like the 'e' in 'met'. If you close it, it might sound like a different word.

Synonym Choice

Choose 'em tese' over 'teoricamente' in conversation to sound less like a textbook and more like a native speaker.

Polite Disagreement

If you disagree with someone's plan, start with 'Em tese, sua ideia é boa...' before explaining why it won't work. It's softer than a direct 'no'.

Catch the 'Z'

The 's' in 'tese' is pronounced like a 'z'. This is a key auditory cue to help you recognize the word in fast speech.

The 'Thesis' Link

Remember that a 'thesis' is a logical argument. 'Em tese' is just staying within the logic of that argument.

Daily Routine

Try to describe your daily schedule using 'em tese' to acknowledge that things often change. 'Em tese, eu acordo às sete.'

Mémorise-le

Moyen mnémotechnique

Think of the 'T' in 'Tese' as the 'T' in 'Theory'. 'Em Tese' = 'In Theory'.

Association visuelle

Imagine a professor pointing at a chalkboard with a perfect plan, but outside the window, there is a chaotic storm. The chalkboard is 'em tese'.

Word Web

Logística Planejamento Hipotético Regras Dúvida Academia Direito Possibilidade

Défi

Try to use 'em tese' three times today: once when talking about your schedule, once about a rule, and once about a news story.

Origine du mot

The word 'tese' comes from the Latin 'thesis', which in turn originates from the Greek 'thesis' (θέσις), meaning 'a proposition' or 'a placing'. The expression 'em tese' follows the standard Portuguese prepositional structure for defining a state or condition.

Sens originel : Originally, 'thesis' referred to the act of setting something down or an intellectual position taken in an argument.

Indo-European > Italic > Romance > Portuguese

Contexte culturel

There are no major sensitivities, but be aware that using it too much can make you sound like you are constantly doubting people.

English speakers might use 'on paper' or 'technically' in many situations where a Portuguese speaker would prefer 'em tese'.

Used frequently in Brazilian legal dramas and political talk shows like 'Roda Viva'. Common in the lyrics of Brazilian 'MPB' (Musica Popular Brasileira) to discuss social ideals. A staple phrase in Portuguese academic writing and university lectures.

Pratique dans la vie réelle

Contextes réels

Work/Office

Em tese, o prazo é hoje.
O sistema funciona em tese.
Em tese, temos o orçamento.
Isso é viável em tese.

University/School

Em tese, a prova é fácil.
O autor defende essa tese.
Em tese, o modelo explica tudo.
Válido em tese acadêmica.

Legal/Politics

Em tese, todos são iguais.
A lei permite isso em tese.
Em tese, o crime prescreveu.
Direito garantido em tese.

Daily Plans

Eu vou à academia, em tese.
Em tese, não vai chover.
O ônibus vem logo, em tese.
Tudo certo em tese.

Skepticism/Irony

Só em tese mesmo!
Em tese, ele é honesto.
Funciona muito bem... em tese.
Em tese, eu sou rico.

Amorces de conversation

"Em tese, o que você faria se ganhasse na loteria amanhã?"

"Você acha que o trabalho remoto funciona bem em tese e na prática?"

"Em tese, qual é a melhor cidade para se viver no Brasil?"

"Você concorda que, em tese, a tecnologia deveria nos dar mais tempo livre?"

"Em tese, como seria o seu dia perfeito?"

Sujets d'écriture

Descreva um plano que você tinha que funcionava bem em tese, mas deu errado na prática.

Em tese, como você gostaria que fosse a sua carreira daqui a cinco anos?

Escreva sobre uma regra da sua sociedade que existe em tese, mas que ninguém segue.

Pense em um hábito que você quer ter. Em tese, como você vai começar?

Reflita sobre a frase: 'Em tese, todos somos livres'. O que isso significa para você?

Questions fréquentes

10 questions

Not always, but very often. In scientific contexts, it just means 'according to the model.' In conversation, it usually suggests that the speaker knows reality might be different. For example, 'Em tese, o banco abre às dez' implies it might actually open a bit later.

Yes, it is very common in formal writing. It helps you distinguish between theoretical frameworks and empirical evidence. For example, 'Em tese, a política de juros deveria controlar a inflação.' It shows a balanced and academic tone.

It is widely used in both countries. While some slang differs, 'em tese' is a standard part of the Portuguese language across the Lusophone world. You will be understood perfectly in Lisbon, Luanda, or São Paulo.

They are opposites. 'Em tese' is how things should work logically or according to rules. 'Na prática' is how things actually happen. A common saying is 'Em tese é uma coisa, na prática é outra' (In theory it's one thing, in practice it's another).

It is an adverbial locution (locução adverbial). This means it functions like an adverb to modify a verb, adjective, or an entire sentence to show the mode or condition of the statement.

No. 'Na tese' means 'inside the specific thesis paper.' If you want to say 'in theory,' you must use 'em tese.' This is a very common mistake for learners, so be careful with the preposition.

No, it's related to 'thesis' (proposition). The word for 'test' in Portuguese is 'teste' (masculine), while 'tese' (feminine) means thesis. They sound similar but have different origins and meanings.

It's a nasal sound. Do not pronounce the 'm' with your lips closed. Instead, make the sound 'eh' and let the air go through your nose. It sounds a bit like the 'en' in the French word 'enfant'.

Yes. For example, 'Em tese, ele deveria ter chegado ontem.' (In theory, he should have arrived yesterday). This is used to discuss expectations that were not met in the past.

There isn't a direct slang equivalent, but in very informal speech, people might say 'no papel' (on paper) or just use a skeptical 'né?' at the end of a sentence to imply the same doubt.

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