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A2 adjective 9分钟阅读

observável

开始练习例句笔记与提示 observável 30秒了解

解析 observável in your Level:

At the A1 level, you are just beginning to describe the world around you. You likely know the word 'ver' (to see). The word observável might seem a bit long, but it's very useful for saying 'I can see this'. At this stage, you should focus on the fact that it describes things you can see with your eyes. For example, 'A cor é observável' (The color is observable). You don't need to worry about complex scientific meanings yet. Just remember that it ends in '-el' and doesn't change for 'o' or 'a'. If you see a big mountain, it is observável. If you see a blue car, the color blue is observável. It is a more 'fancy' way of saying you can see something. Practice using it with simple nouns like 'casa', 'carro', 'sol', and 'lua'. It will make your basic Portuguese sound a little more advanced. Also, notice that the stress is on the 'VÁ' syllable. Even at A1, getting the stress right helps people understand you better. Don't worry about the plural form 'observáveis' until you are comfortable with the singular.

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At the A2 level, you are expanding your vocabulary to describe things in more detail. You can now use observável to talk about changes or differences. For instance, 'A diferença é observável' (The difference is observable). You should also start learning the plural form: observáveis. This is important because you will often describe multiple things, like 'Os detalhes são observáveis' (The details are observable). At A2, you might use this word to talk about weather, physical appearances, or simple instructions. For example, in a cooking recipe, a change in color might be an 'alteração observável'. You are moving beyond just 'seeing' to 'noticing'. This word helps you express that something is not hidden; it is right there for anyone to see. You can also start pairing it with basic adverbs like 'muito' or 'pouco'. 'É pouco observável' means it's hard to see. This adds nuance to your descriptions. It's a great word to use in your simple writing assignments about your daily life or your hometown.

At the B1 level, you are becoming an intermediate learner. You can use observável in more abstract contexts, such as describing someone's behavior or a social trend. You might say, 'O seu progresso no português é observável' (Your progress in Portuguese is observable). This shows you understand that 'observing' isn't just about eyes, but about recognizing patterns over time. You should be comfortable with the plural observáveis and the correct placement of the adjective after the noun. B1 learners should also start recognizing the word in news articles or basic scientific texts. You might encounter phrases like 'universo observável' or 'fenômenos observáveis'. You can also use it to express opinions backed by evidence: 'É observável que a cidade está mais limpa'. This sounds much more objective than just saying 'Eu acho que a cidade está mais limpa'. It helps you build stronger arguments in both speaking and writing. You are now using the word to bridge the gap between simple description and analysis.

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At the B2 level, you should use observável with precision, distinguishing it from synonyms like 'visível' or 'perceptível'. You understand that observável carries a connotation of empirical evidence. In a professional or academic setting, you might use it to describe 'dados observáveis' (observable data) in a report. You are also expected to handle more complex sentence structures, such as using the word in the passive voice or with complex subjects. For example: 'As mudanças climáticas, embora graduais, são claramente observáveis através da análise de dados históricos'. This level of complexity is where observável really shines. You should also be aware of its use in specific fields like psychology ('comportamento observável') or physics. You can use it to talk about things that are detectable only with instruments, showing an understanding that 'observation' can be mediated by technology. Your vocabulary is now sophisticated enough to choose observável specifically because it implies a systematic way of looking at the world.

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At the C1 level, you are approaching a near-native command of the language. You use observável in nuanced, high-level discussions. You might discuss the 'limites do universo observável' (limits of the observable universe) in a philosophical or scientific debate. You understand the word's role in the epistemology of science—how we know what we know based on what is observável. You can use the word to critique ideas, for instance, by pointing out that a theory lacks 'evidência observável'. Your writing should reflect this sophistication, using observável to maintain an objective, academic tone. You also recognize the word in literature where it might be used metaphorically or to create a specific atmosphere of scrutiny. You are comfortable with all its grammatical permutations and can use it alongside advanced adverbs like 'empiricamente', 'estatisticamente', or 'intrinsecamente'. At this stage, the word is a tool for precision, allowing you to delineate between what is speculative and what is grounded in reality.

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At the C2 level, your mastery of observável is absolute. You understand its historical roots and how it functions within the broader structure of the Portuguese language. You can use it in highly specialized technical writing, legal documents, or complex literary analysis without hesitation. You might engage in deep philosophical discussions about the nature of reality, questioning if something must be observável to be considered 'real'. You can play with the word in creative writing, perhaps personifying the 'observável' or using it to contrast with the 'inefável' (ineffable). You are also aware of regional variations in how the word might be used or pronounced across the Lusophone world. For a C2 learner, observável is not just a vocabulary item but a concept that you can manipulate to express the most subtle shades of meaning. You can effortlessly switch between its literal, scientific, and metaphorical uses, ensuring that your choice of word perfectly fits the register and intent of your communication.

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开始练习例句笔记与提示

observável 30秒了解

Observável means 'observable' or 'detectable'.
It is gender-neutral but changes to 'observáveis' in the plural.
Used in science, daily life, and professional reports.
Indicates something can be objectively noticed or measured.

The Portuguese word observável is a versatile adjective that translates directly to 'observable' in English. It is formed by the root verb observar (to observe) and the suffix -vel, which indicates possibility or capability, similar to the English suffix '-able'. In its most literal sense, it describes anything that can be detected by the human eye or perceived through the senses. However, its usage extends far beyond simple vision. In scientific, academic, and professional contexts, observável refers to data, behaviors, or phenomena that can be measured, recorded, or verified through empirical evidence.

Literal Perception: Relates to things you can physically see, like a stain on a shirt or a bird in the sky.
Scientific Evidence: Refers to results in an experiment or changes in a patient's condition that a doctor can verify.
Sociological Trends: Used to describe shifts in society or behavior that are evident through study or daily interaction.

People use this word when they want to emphasize objectivity. Instead of saying something is 'clear' (claro) or 'evident' (evidente), which can sometimes be subjective, saying it is observável suggests that anyone looking with the right tools or attention would see the same thing.

A mudança no clima é claramente observável através do degelo das calotas polares.

Este é um fenômeno observável em todas as culturas.

A diferença de altura entre os dois irmãos é observável a olho nu.

Não há nenhum sinal observável de entrada forçada na casa.

O comportamento do animal tornou-se mais observável após a medicação.

Context: Astronomy: The 'Universo Observável' (Observable Universe) is a standard term for the part of the universe we can see from Earth.
Context: Medicine: Doctors look for 'sintomas observáveis' to diagnose conditions that don't show up on scans.

Understanding 'observável' helps you describe the world with more precision, moving from 'I see' to 'it is detectable and verifiable'.

Using observável in a sentence requires attention to its position and its plural form. In Portuguese, adjectives typically follow the noun they modify. This is the most common pattern for observável. For example, 'an observable fact' becomes um fato observável. Because it ends in '-el', it is a uniform adjective regarding gender, meaning it doesn't change whether the noun is masculine or feminine.

Singular Usage: O efeito é observável. (The effect is observable - Masculine)
A diferença é observável. (The difference is observable - Feminine)
Plural Usage: Os efeitos são observáveis. (The effects are observable)
As diferenças são observáveis. (The differences are observable)

The transformation from -vel to -véis is a standard rule in Portuguese for all adjectives ending in '-el' when they become plural. This is where most English speakers make mistakes, often trying to add a simple 's' (observávels), which is incorrect.

Existem muitos dados observáveis que apoiam esta teoria científica.

A mancha no tecido não era observável sob luz artificial, apenas no sol.

O progresso do aluno é observável através de suas notas e participação em sala.

You can also use adverbs to modify observável to add nuance. Common modifiers include facilmente (easily), dificilmente (hardly), claramente (clearly), and diretamente (directly). In more complex sentence structures, you might see observável used in the 'ser + adjective + que' construction, although it is less common than 'é visível que'. Instead, it's usually 'é observável que...' (It is observable that...).

Formal Pattern: É observável que a economia está crescendo. (It is observable that the economy is growing.)

By mastering these patterns, you can integrate observável naturally into your Portuguese, whether you are describing a simple object or a complex set of data.

While observável is not a word you might use every five minutes in a casual conversation at a bar, it is extremely common in specific environments. If you watch the news, specifically segments on science, technology, or the environment, you will hear it frequently. Journalists use it to describe evidence for climate change or the results of a new study. In educational settings, from high school biology to university lectures, it is a foundational term. Teachers will ask students to list the 'características observáveis' of a specimen or a chemical reaction.

The News: 'Houve uma melhora observável nos índices de segurança este mês.'
Corporate Meetings: Managers discuss 'resultados observáveis' (observable results) to justify budget increases or strategy shifts.

You will also encounter this word in literature, particularly in detective novels or psychological thrillers. An author might describe a character's 'nervosismo observável' (observable nervousness) to hint at their guilt. In the legal field, lawyers speak of 'fatos observáveis' to distinguish between objective reality and hearsay.

O fenômeno é observável apenas durante o eclipse total.

In everyday life, you might hear it when someone is being slightly more formal or precise than usual. For example, if a parent is talking to a teacher about their child's behavior, they might say 'Não notei nenhuma mudança observável em casa'. This adds a layer of seriousness to the observation. It is also a key term in the 'Método Científico' (Scientific Method), which is taught to every Portuguese-speaking child. Therefore, even if it's not 'slang', it is a word that every native speaker knows and understands perfectly.

A poluição é observável na cor acinzentada do horizonte.

Whether you are reading a scientific paper, a newspaper, or listening to a professional presentation, observável is the go-to word for objective perception.

Learning observável involves avoiding a few linguistic traps that English speakers often fall into. The most frequent error is related to pluralization. Because English 'observable' becomes 'observables' (a noun) or stays the same (as an adjective), learners often try to apply English logic to Portuguese.

Pluralization Error: Incorrect: Os fatos são observávels.
Correct: Os fatos são observáveis.
Accent Neglect: Incorrect: observavel (missing the acute accent on the 'á'). The accent is vital because it indicates the stressed syllable.

Another common mistake is confusing observável with visível. While they are often interchangeable, they are not identical. Visível means 'can be seen', while observável often implies 'can be studied' or 'is a piece of data'. If you say a star is 'visível', you mean you can see it. If you say it is observável, you might be talking about its properties that can be tracked over time.

Muitos alunos esquecem o acento em observável, o que muda a pronúncia correta.

Some learners also struggle with the placement of the adjective. While you can technically place it before the noun for poetic effect (um observável fenômeno), it sounds extremely unnatural in 99% of contexts. Stick to placing it after the noun.

É um erro comum dizer 'observávels' em vez de observáveis.

Lastly, ensure you are using the correct preposition if you are expanding the sentence. We usually say something is 'observável em' (observable in) or 'observável por' (observable by). Using 'de' in these cases is usually a direct translation from a different English thought pattern and should be avoided.

Preposition Usage: Correct: Observável no microscópio. (Observable in the microscope.)
Incorrect: Observável do microscópio. (Unless you mean 'from' the perspective of the microscope, which is rare.)

Avoiding these pitfalls will make your Portuguese sound much more professional and accurate.

In Portuguese, as in English, having a variety of words to describe perception allows you to be more specific. Observável is just one point on a spectrum.

Visível vs. Observável: 'Visível' is strictly about sight. 'Observável' can include sight, but also results from instruments or analytical monitoring. A change in mood is 'observável', but rarely described as 'visível' unless it's a physical expression.
Perceptível vs. Observável: 'Perceptível' is broader and can refer to any sense (hearing, smell, touch). It often describes things that are just barely detectable. If a sound is 'perceptível', you can just hear it. If a sound is 'observável', you are likely analyzing its frequency or pattern.
Notável vs. Observável: 'Notável' means 'noteworthy' or 'remarkable'. It implies that the thing being observed is significant or surprising. 'Observável' is more neutral; it just says it can be seen, regardless of how important it is.

Other alternatives include constatável (verifiable/ascertainable), which is used when you want to emphasize that something has been proven to exist. Manifesto (manifest) is used when something is very obvious or clearly displayed.

A diferença de preços é constatável em qualquer supermercado.

O descontentamento da população é manifesto nos protestos.

In medical contexts, clínico is often used instead of observável to describe signs that a doctor finds during an exam. Understanding these subtle differences will elevate your Portuguese from 'functional' to 'fluent'.

O cheiro de fumaça era quase imperceptível, mas ainda assim observável pelos sensores.

By choosing the right synonym, you convey not just the fact of perception, but the quality and context of that perception.

How Formal Is It?

趣味小知识

The root 'servare' in Latin means 'to keep' or 'to guard'. So 'observar' originally meant to 'keep watch over' something.

发音指南

UK /ob.seɾ.ˈva.vɛl/

US /ob.seɾ.ˈva.vew/

The primary stress is on the penultimate syllable 'VÁ'. The acute accent marks this clearly.

押韵词

amável notável variável saudável sustentável agradável provável inevitável

常见错误

Stressing the 'vel' at the end like English 'observable'.
Pronouncing the 'b' too softly or omitting it.
Not pronouncing the 'r' clearly in the middle.
Changing the 'á' sound to a closed 'a'.
Forgetting the accent entirely when writing.

难度评级

阅读 2/5

Easy to recognize because of the English cognate 'observable'.

写作 3/5

Requires remembering the acute accent and the specific plural ending '-éis'.

口语 3/5

The 'vável' sound can be a bit of a tongue twister for beginners.

听力 2/5

Clear pronunciation usually makes it easy to pick out in speech.

接下来学什么

前置知识

ver olhar coisa grande claro

接下来学习

perceptível evidente notável constatável análise

高级

empírico epistemológico fenomenológico mensurável

需要掌握的语法

Adjectives ending in -el change to -eis in the plural.

Observável -> Observáveis

Adjectives usually follow the noun in Portuguese.

Um fato observável

Adjectives ending in -el are gender-neutral.

O sol observável / A lua observável

Acute accents on the penultimate syllable often indicate stress in adjectives ending in -el.

ob-ser-VÁ-vel

Negative 'não' comes before the verb, affecting the adjective phrase.

Não é observável.

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按水平分级的例句

O sol é observável no céu.

The sun is observable in the sky.

Simple adjective use after the noun 'sol'.

A cor azul é observável nesta flor.

The blue color is observable in this flower.

Adjective modifying the feminine noun 'cor'.

O carro grande é observável na rua.

The big car is observable on the street.

Using 'observável' to describe visibility.

A lua está observável hoje à noite.

The moon is observable tonight.

Using 'estar' to indicate a temporary state of visibility.

Este detalhe é observável.

This detail is observable.

A1 level focus on singular form.

O fumo é observável de longe.

The smoke is observable from afar.

Using a prepositional phrase 'de longe'.

A luz é observável na janela.

The light is observable in the window.

Feminine noun 'luz' with gender-neutral adjective.

O pássaro é observável na árvore.

The bird is observable in the tree.

Basic noun-adjective agreement.

As estrelas são observáveis com um telescópio.

The stars are observable with a telescope.

Plural form 'observáveis' matching 'estrelas'.

Há uma mudança observável no tempo.

There is an observable change in the weather.

Adjective following the noun 'mudança'.

Os sinais são observáveis na pele.

The signs are observable on the skin.

Plural agreement with 'os sinais'.

O erro é facilmente observável.

The error is easily observable.

Adverb 'facilmente' modifying the adjective.

Muitas aves são observáveis neste parque.

Many birds are observable in this park.

Plural adjective usage.

A diferença de tamanho é observável.

The difference in size is observable.

Noun phrase 'diferença de tamanho' followed by adjective.

O rastro é observável na areia.

The trail is observable in the sand.

Masculine noun 'rastro' with adjective.

Estes resultados não são observáveis agora.

These results are not observable now.

Negative sentence with plural adjective.

O progresso do aluno é observável nas provas.

The student's progress is observable in the exams.

Abstract noun 'progresso' modified by 'observável'.

É observável que a poluição diminuiu.

It is observable that the pollution decreased.

Impersonal construction 'É observável que...'.

Existem características observáveis em cada espécie.

There are observable characteristics in each species.

Plural noun 'características' with 'observáveis'.

A melhora na saúde é observável dia após dia.

The improvement in health is observable day after day.

Using a time expression with the adjective.

O comportamento do grupo é observável de longe.

The group's behavior is observable from afar.

Focus on 'comportamento' (behavior).

Sinais de desgaste são observáveis na ponte.

Signs of wear and tear are observable on the bridge.

Plural agreement.

A influência da cultura é observável na língua.

The influence of culture is observable in the language.

Abstract relationship between culture and language.

Este fenômeno é observável apenas no inverno.

This phenomenon is observable only in winter.

Limiting the context with 'apenas'.

O universo observável contém bilhões de galáxias.

The observable universe contains billions of galaxies.

Scientific term 'universo observável'.

Não houve nenhum efeito observável durante o teste.

There was no observable effect during the test.

Using 'nenhum' for emphasis in the negative.

As tendências de mercado são observáveis nos dados.

The market trends are observable in the data.

Plural noun 'tendências' with 'observáveis'.

O declínio da espécie é observável há décadas.

The decline of the species has been observable for decades.

Present tense with 'há' to indicate duration.

O nervosismo do suspeito era claramente observável.

The suspect's nervousness was clearly observable.

Adverb 'claramente' modifying the adjective.

As propriedades químicas são observáveis em laboratório.

The chemical properties are observable in the laboratory.

Plural agreement and technical context.

A evolução é um processo observável na natureza.

Evolution is an observable process in nature.

Scientific context.

Os sintomas clínicos são observáveis pelo médico.

The clinical symptoms are observable by the doctor.

Using the agent 'pelo médico' (by the doctor).

A correlação entre as variáveis é estatisticamente observável.

The correlation between the variables is statistically observable.

Advanced adverb 'estatisticamente'.

Há uma defasagem observável entre a teoria e a prática.

There is an observable gap between theory and practice.

Abstract concept of a 'gap' (defasagem).

O impacto sociológico é observável nas periferias.

The sociological impact is observable in the outskirts.

Sociological context.

Traços de uma civilização antiga são observáveis nestas ruínas.

Traces of an ancient civilization are observable in these ruins.

Plural noun 'traços' (traces).

A sutil ironia do autor é observável em cada parágrafo.

The author's subtle irony is observable in every paragraph.

Literary analysis context.

Alterações neurológicas são observáveis através de exames de imagem.

Neurological changes are observable through imaging tests.

Medical/Scientific context.

O viés cognitivo é observável no comportamento de compra.

Cognitive bias is observable in purchasing behavior.

Psychological/Economic context.

Diferenças dialetais são observáveis em todo o país.

Dialectal differences are observable throughout the country.

Linguistic context.

A natureza intrinsecamente observável da realidade é debatida na física quântica.

The intrinsically observable nature of reality is debated in quantum physics.

Philosophical/Scientific use of 'intrinsecamente'.

A porosidade das fronteiras torna o fenômeno menos observável.

The porosity of borders makes the phenomenon less observable.

Complex metaphorical usage.

A subjetividade do observador pode distorcer o dado observável.

The observer's subjectivity can distort the observable data.

Epistemological context.

O limiar do que é cientificamente observável está em constante expansão.

The threshold of what is scientifically observable is in constant expansion.

Abstract concept of 'limiar' (threshold).

Manifestações culturais são observáveis na arquitetura efêmera.

Cultural manifestations are observable in ephemeral architecture.

High-level cultural analysis.

A entropia é observável na degradação gradual dos sistemas fechados.

Entropy is observable in the gradual degradation of closed systems.

Thermodynamic context.

A ressonância histórica é observável nos movimentos sociais contemporâneos.

Historical resonance is observable in contemporary social movements.

Metaphorical 'resonance'.

O caráter observável de uma infração é fundamental para o processo jurídico.

The observable nature of an infraction is fundamental to the legal process.

Legal context.

常见搭配

universo observável

comportamento observável

mudança observável

efeito observável

característica observável

diferença observável

sinal observável

fenômeno observável

resultado observável

dados observáveis

常用短语

facilmente observável

— Something that anyone can see without effort.

A falha é facilmente observável no gráfico.

claramente observável

— Used to emphasize that there is no doubt about what is seen.

A tendência é claramente observável.

dificilmente observável

— Something that requires a lot of attention or tools to see.

O vírus é dificilmente observável sem microscópio.

diretamente observável

— Something seen without any intermediate steps or interpretation.

O impacto foi diretamente observável.

apenas observável

— Used to limit the perception to a specific condition.

A estrela é apenas observável no hemisfério sul.

nada observável

— Used in negative sentences to say nothing was seen.

Não havia nada observável de errado.

quase observável

— Something that is on the verge of being seen.

A luz era quase observável através da névoa.

sempre observável

— A constant characteristic or phenomenon.

Este padrão é sempre observável.

raramente observável

— Something that is seldom seen.

Este animal é raramente observável na natureza.

amplamente observável

— Something seen by many or across a large area.

O fenômeno foi amplamente observável na Europa.

容易混淆的词

observável vs observador

Observador is the person who watches (the observer), while observável is the thing being watched.

observável vs observação

Observação is the act of watching (the observation), not the quality of being watchable.

observável vs visível

Visível is simpler and strictly about sight; observável is more analytical.

习语与表达

"a olho nu"

— With the naked eye; often used with observável.

O planeta é observável a olho nu.

neutral

"salta aos olhos"

— To be very obvious (it jumps to the eyes).

A diferença salta aos olhos, é muito observável.

informal

"dar na vista"

— To be conspicuous or attract attention.

O erro dava na vista, era muito observável.

informal

"ver para crer"

— Seeing is believing.

O efeito é observável, mas você precisa ver para crer.

common

"estar na cara"

— To be obvious (it's on the face).

Está na cara que é observável.

slang

"preto no branco"

— Black and white; clear and documented.

Os dados são observáveis, está tudo preto no branco.

neutral

"não ter onde se esconder"

— Nowhere to hide; used for obvious traits.

O defeito é observável, não tem onde se esconder.

informal

"cair a ficha"

— To finally realize something that was observable.

A ficha caiu quando a mudança se tornou observável.

informal

"pôr os pingos nos is"

— To clarify things based on observable facts.

Vamos observar os fatos e pôr os pingos nos is.

neutral

"chover no molhado"

— To state the obvious (raining on the wet).

Dizer que é observável é chover no molhado.

informal

容易混淆

observável vs perceptível

Both mean something can be detected.

Perceptível is often used for very faint sensations (a small sound), while observável is used for things being studied.

O cheiro é perceptível, mas o gás não é observável.

observável vs notável

Both imply something is seen.

Notável means it stands out or is impressive; observável is neutral.

Sua inteligência é notável, mas seu esforço é observável.

observável vs mensurável

Both are used in science.

Mensurável means it can be measured with numbers; observável just means it can be seen or noted.

O calor é observável, mas a temperatura é mensurável.

observável vs evidente

Both mean 'clear'.

Evidente is more subjective ('it's obvious to me'); observável is more objective.

É evidente que ele mente, mas não há prova observável.

observável vs visível

Direct synonyms in many cases.

Visível is about the physical ability to see; observável is about the possibility of gathering data.

A estrela está visível, mas sua órbita é observável apenas com cálculos.

句型

O [substantivo] é observável.

O sol é observável.

Os [substantivos] são observáveis.

Os pássaros são observáveis.

É observável que [frase].

É observável que ele está feliz.

[Substantivo] é facilmente observável em [lugar].

A poluição é facilmente observável na cidade.

Através de [método], o [substantivo] torna-se observável.

Através do microscópio, a célula torna-se observável.

Não há evidência observável de [conceito].

Não há evidência observável de vida em Marte.

A despeito de [oposto], o [substantivo] permanece observável.

A despeito do caos, o padrão permanece observável.

O caráter observável de [coisa] é [adjetivo].

O caráter observável de sua dor é inegável.

词族

名词

observação

observador

observabilidade

observatório

动词

observar

形容词

observável

observado

observador

如何使用

frequency

High in technical, scientific, and news contexts; Medium in daily conversation.

常见错误

Os dados são observávels. → Os dados são observáveis.
Adjectives ending in -el must change to -eis in the plural. Adding just an 's' is incorrect.
O efeito é observavel. → O efeito é observável.
You must include the acute accent on the 'á'. Without it, the stress would be wrong.
Uma mudança observávela. → Uma mudança observável.
Adjectives ending in -el do not change for gender. They are the same for masculine and feminine.
Eu observável o sol. → Eu observo o sol.
Don't confuse the adjective 'observável' (observable) with the verb 'observar' (to observe).
É observável de que ele fugiu. → É observável que ele fugiu.
When using the 'It is observable that...' construction, don't add the preposition 'de'.

小贴士

Gender Neutrality

Don't try to say 'observávla' or 'observávlo'. The word ends in -el for everyone!

Open your 'Á'

The 'á' with the accent is an open sound, like 'ah'. Make sure it's the strongest part of the word.

Use with 'Fato'

A very common pair is 'fato observável'. It makes you sound very logical.

Plural Rule

Always check your plurals. Ending in -el? Change to -eis. No exceptions for adjectives like this.

Scientific Tone

Use 'observável' when you want to sound objective, like a scientist or a reporter.

L vs U

In Brazil, listen for 'veu' at the end. It's the same word as 'vel'!

Observer-Able

Just remember it's the Portuguese twin of 'observable'. They look and act almost the same.

Adjective Position

Keep it after the noun. 'Mudança observável' is perfect. 'Observável mudança' is for poets only.

Facilmente

Pair it with 'facilmente' (easily) to describe something obvious. It's a very natural collocation.

Astronomy Tip

If you like space, learn 'Universo Observável'. It's a cool term to know.

记住它

记忆技巧

Think of an 'OBSERVER' who is 'ABLE' to see. Observer + Able = Observável.

视觉联想

Imagine a scientist looking through a telescope at a bright star. The star is the 'observável' object.

Word Web

Ver Ciência Telescópio Fato Evidência Olho Luz Dados

挑战

Try to find three things in your room right now that are 'facilmente observáveis' and say them out loud in Portuguese.

词源

From the Latin 'observabilis', which comes from the verb 'observare'.

原始含义： Able to be watched or kept in sight.

Romance (Latin root).

文化背景

No specific sensitivities; it is a neutral, descriptive term.

Similar to English 'observable', but used more frequently in general descriptions where English might use 'noticeable'.

O Universo Observável (Scientific concept) Comportamentalismo (Behaviorism in psychology focus on observable acts) Tratados de Astronomia

在生活中练习

真实语境

Science Lab

Fenômeno observável
Dados observáveis
Mudança observável
Resultado observável

Medical Exam

Sintomas observáveis
Melhora observável
Sinais observáveis
Reação observável

Astronomy

Universo observável
Estrela observável
Planeta observável
Evento observável

Business Report

Tendência observável
Progresso observável
Impacto observável
Diferença observável

Daily Life

Erro observável
Mancha observável
Sujeira observável
Beleza observável

对话开场白

"Você acha que a mudança climática é observável na sua cidade?"

"Quais são as características observáveis de um bom professor?"

"Existe algum sinal observável de que a economia está melhorando?"

"Você prefere estudar coisas teóricas ou fenômenos observáveis?"

"Qual é o detalhe mais observável nesta pintura?"

日记主题

Descreva uma mudança observável na sua vida nos últimos cinco anos.

Escreva sobre um fenômeno natural que você acha ser o mais belo e observável.

Quais sinais observáveis você nota quando está ficando estressado?

Como os dados observáveis ajudam você a tomar decisões no trabalho?

Pense em um amigo. Quais são as qualidades observáveis que fazem dele uma boa pessoa?

常见问题

10 个问题

It is both! Adjectives ending in '-el' are uniform, meaning they have the same form for both masculine and feminine nouns. For example: 'o fato observável' and 'a mudança observável'.

You change the '-el' to '-eis' and keep the accent. So, 'observável' becomes 'observáveis'. Example: 'Os sinais são observáveis'.

'Visível' means you can see it with your eyes. 'Observável' means it can be noticed, monitored, or detected, often in a more formal or scientific way. If you can see a house, it's 'visível'. if you are studying the house's decay, that decay is 'observável'.

Yes, in the singular form, it always has an acute accent on the 'á'. This is because it is a 'paroxítona' ending in 'l', and Portuguese rules require an accent there.

Yes, although 'perceptível' or 'audível' is more common for sounds. You would use 'observável' if you are analyzing the sound as data.

Yes, very common in news, school, and professional environments. It's less common in very casual street slang, where people prefer 'dá pra ver'.

The most direct opposite is 'inobservável', but people also use 'invisível' (invisible) or 'imperceptível' (unnoticeable).

In Brazil, it sounds like a 'u' (observá-veu). In Portugal, it sounds more like a traditional 'l' (observá-vel).

Yes, if the feeling shows on someone's face or in their actions. 'Sua tristeza era observável'.

It comes from the Latin 'observabilis', from 'observare' (to watch/keep). It shares the same root as the English word 'observable'.

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