At the A1 level, the word 'obsoleto' might be a bit advanced, but it is useful to know when talking about things that are very old and don't work anymore. Think of it as a stronger way to say 'viejo' (old) for things like phones or computers. If you have a phone that is ten years old and you cannot use WhatsApp on it, you can say 'Mi teléfono es obsoleto'. It is important to remember that if the thing is a boy-word (masculine), you say 'obsoleto'. If it is a girl-word (feminine), you say 'obsoleta'. For example: 'el ordenador obsoleto' but 'la televisión obsoleta'. At this stage, just focus on using it for technology that is too old to use. It helps you sound more specific than just using the word 'viejo' for everything.
By A2, you should start using 'obsoleto' to describe objects that have been replaced by newer versions. You might use it in the context of shopping or talking about your hobbies. For instance, if you are talking about music, you could say 'Los CDs están un poco obsoletos porque ahora usamos Spotify'. This shows you understand the difference between something being 'old' and something being 'replaced'. You will often see this word in simple news articles or advertisements for new products. Remember the plural forms: 'estos libros son obsoletos' or 'estas máquinas son obsoletas'. Practice using it with the verb 'estar' to describe the current state of an object.
At the B1 level, you are expected to use 'obsoleto' in more varied contexts, including professional and social discussions. You should understand that 'obsoleto' implies a lack of utility due to progress. You can use it to talk about 'leyes obsoletas' (outdated laws) or 'métodos de trabajo obsoletos' (outdated work methods). This is the level where you should also learn the phrase 'quedar obsoleto' (to become obsolete). For example: 'Con la llegada de Internet, muchas enciclopedias quedaron obsoletas'. This use of 'quedar' shows a change in state, which is a key B1 grammar point. You should also be able to distinguish 'obsoleto' from 'anticuado' (old-fashioned) in basic conversations.
At the B2 level, you should be comfortable using 'obsoleto' in academic or business environments. You can discuss complex topics like 'obsolescencia programada' (planned obsolescence) and how it affects the environment. You should be able to use the word to argue a point, such as why a company needs to invest in new technology. 'No podemos seguir con este sistema; es totalmente obsoleto y reduce nuestra productividad'. You should also notice the word in more sophisticated literature and news reports. At this level, you should use adverbs like 'completamente', 'prácticamente', or 'tecnológicamente' to modify 'obsoleto', showing a higher level of precision in your speech.
At the C1 level, 'obsoleto' becomes a tool for nuanced critique. You might use it to describe abstract concepts, such as 'una mentalidad obsoleta' (an outdated mindset) or 'estructuras sociales obsoletas'. You should understand the subtle differences between 'obsoleto', 'arcaico', 'caduco', and 'desfasado', and choose the most appropriate one for the context. For example, you would use 'caduco' for a legal right that has expired, but 'obsoleto' for the technology used to exercise that right. Your use of the word should be fluid and integrated into complex sentence structures, such as using it in subordinate clauses: 'A pesar de que el sistema parece obsoleto, todavía cumple una función crítica en la seguridad'.
At the C2 level, you have a masterly command of 'obsoleto' and its related forms. You can use it in highly formal writing, legal documents, or philosophical debates about the nature of progress. You might explore the irony of things that are 'obsoletos' but still valued, like analog photography or vinyl records, using the word to contrast functional obsolescence with cultural value. You should also be familiar with the noun form 'obsolescencia' in all its technical applications (economic, psychological, functional). At this level, you can use the word to make subtle rhetorical points about the speed of modern life and the constant cycle of replacement that defines contemporary society.

obsoleto in 30 Seconds

  • Obsoleto means 'obsolete' or 'out of date' in Spanish, specifically referring to things replaced by better versions.
  • It is primarily used for technology, systems, laws, and ideas that are no longer functional or relevant.
  • Always remember to match the gender and number of the noun: obsoleto, obsoleta, obsoletos, obsoletas.
  • Avoid using it to describe people directly; use it for their skills or ideas instead to be polite.

The Spanish word obsoleto is a powerful adjective used to describe something that is no longer useful, relevant, or in use because it has been replaced by something newer, better, or more efficient. Unlike the word 'viejo' (old), which simply refers to the age of an object, 'obsoleto' carries a specific connotation of functional death. It implies that while the object might still physically exist or even work, the world has moved on, making it a relic of a previous era. This distinction is crucial for Spanish learners to master, as using 'viejo' for a computer might just mean it was bought a few years ago, but calling it 'obsoleto' means it can no longer run modern software or fulfill its intended purpose in today's technological landscape.

Technological Context
In the realm of technology, 'obsoleto' is used frequently to describe hardware and software. When a company stops providing updates for an operating system, that system becomes 'obsoleto'. For instance, using Windows 95 today is not just using an 'old' system; it is using an 'obsoleto' system because it lacks the security and compatibility required for modern internet usage.

The word is also deeply embedded in economic and industrial discussions. One of the most famous phrases involving this concept is obsolescencia programada (planned obsolescence), which refers to the industrial policy of planning or designing a product with an artificially limited useful life, so it will become 'obsoleto' after a certain period of time. This forces consumers to purchase newer models. Understanding 'obsoleto' in this context allows learners to engage in complex discussions about sustainability, consumerism, and engineering.

El manual de reparaciones de este motor ha quedado totalmente obsoleto tras la última actualización de seguridad.

Beyond physical objects, 'obsoleto' can apply to ideas, laws, and methods. A law that was passed in the 1800s regarding horse-drawn carriages might still be on the books, but it is 'obsoleta' because it no longer applies to the reality of modern traffic. Similarly, a teaching method that relies solely on rote memorization without any interactive elements might be considered 'obsoleto' by modern educational standards. This versatility makes the word indispensable for academic and professional communication.

Social and Cultural Use
Culturally, the word can be used to critique social norms. If someone holds views that are no longer accepted by society—such as discriminatory beliefs that were common decades ago—those views are often described as 'ideas obsoletas'. This usage highlights the word's role in describing the evolution of human thought and social progress.

Muchos consideran que el sistema de fax es un medio de comunicación obsoleto en la era del correo electrónico.

In summary, 'obsoleto' is not just about time passing; it is about the loss of utility due to progress. It is a word that bridges the gap between history and the future, marking the points where we abandon the old to embrace the new. Whether you are talking about a floppy disk, an out-of-date law, or a discarded scientific theory, 'obsoleto' provides the precise linguistic tool to describe something that the world has outgrown.

Grammar Note
As an adjective, 'obsoleto' must agree in gender and number with the noun it modifies. For example: 'un sistema obsoleto' (masculine singular), 'una máquina obsoleta' (feminine singular), 'unos métodos obsoletos' (masculine plural), and 'unas leyes obsoletas' (feminine plural).

Las tácticas militares de la caballería se volvieron obsoletas con la invención de los tanques.

Ese modelo de negocio quedó obsoleto tras la llegada del comercio electrónico.

Es frustrante cuando compras un dispositivo y al mes ya es obsoleto.

Using 'obsoleto' correctly requires understanding its role as an adjective that describes the state of an object or concept in relation to modern standards. It is most commonly used with the verbs ser (to be), estar (to be), and quedar (to remain/to become). Each verb offers a slightly different nuance. Using 'ser' suggests an inherent quality or a permanent state in the current context. Using 'quedar' emphasizes the transition from being useful to being useless, often due to an external event or advancement.

With 'Ser'
Use 'ser' when you are defining the nature of something. 'El telégrafo es un invento obsoleto.' Here, you are stating a fact about the telegraph's status in the modern world.

When constructing sentences, pay close attention to the noun's gender. Because 'obsoleto' ends in '-o', it follows the standard pattern of changing to '-a' for feminine nouns. This is a common point of error for English speakers who are used to the unchanging 'obsolete'. For example, 'la tecnología' is feminine, so you must say 'tecnología obsoleta'. 'El equipo' is masculine, so you say 'equipo obsoleto'. Pluralization follows the same logic: 'equipos obsoletos' and 'tecnologías obsoletas'.

Muchos diccionarios en papel están quedando obsoletos por la rapidez de las versiones digitales.

In professional settings, 'obsoleto' is often used to justify investments or changes. A manager might say, 'Nuestro software de contabilidad es obsoleto y está causando errores,' to argue for a budget increase for new software. In this context, 'obsoleto' serves as a professional justification for replacement. It carries more weight than 'viejo' because it implies that the current tool is actually hindering performance, not just showing its age.

With 'Quedar'
This is perhaps the most dynamic way to use the word. 'Mi ordenador ha quedado obsoleto' implies that it was once fine, but now, because of new requirements, it no longer suffices. It highlights the passage of time and the arrival of new technology.

Another interesting use case is in the legal and bureaucratic world. When a regulation is no longer applicable because a new one has been passed, the old regulation is described as 'obsoleta'. This is common in legal documents and news reports about legislative reform. 'La normativa vigente hace que el reglamento anterior sea obsoleto.' This precision is vital for anyone studying Spanish for law or business.

Las cámaras de rollo no son obsoletas para los artistas, pero sí para el mercado masivo.

Finally, consider the emotional or metaphorical use. While we should avoid calling people 'obsoleto', we can describe a person's *knowledge* or *skills* as 'obsoletos'. If a programmer only knows a language that is no longer used, they might say, 'Mis conocimientos de programación se han quedado obsoletos.' This focuses the 'obsolescence' on the skill set rather than the person's inherent value, which is a much more polite and accurate way to express the idea.

Comparative Usage
You can compare the level of obsolescence: 'Este modelo es más obsoleto que el que compramos el año pasado.' This helps in evaluating different options or identifying which items need replacing most urgently.

¿Crees que el dinero en efectivo llegará a estar obsoleto algún día?

La infraestructura de la ciudad es obsoleta y necesita una renovación urgente.

Esos métodos de enseñanza son obsoletos y no motivan a los estudiantes.

In the Spanish-speaking world, 'obsoleto' is a word you will encounter in specific but very common environments. One of the most frequent places is in tech reviews and news. Whether you are watching a YouTube channel like 'Topes de Gama' or reading a tech blog, the presenters will often discuss whether a smartphone from two years ago is already 'obsoleto'. This reflects the fast-paced nature of the tech industry in Spain and Latin America.

In the Office
If you work in a Spanish-speaking office, you will hear this word during meetings about procurement and IT upgrades. An IT manager might say, 'Tenemos que cambiar los servidores porque el hardware ya está obsoleto.' It is a standard term in corporate environments to describe equipment that no longer meets the company's needs.

You will also hear it in political and social debates. Politicians often argue that certain laws or constitutional articles are 'obsoletos' and need to be modernized to reflect the current values of society. For example, during debates about digital privacy or environmental regulations, you might hear: 'Las leyes actuales son obsoletas ante los retos del cambio climático.' This usage positions the word in the center of public discourse regarding progress and reform.

En la televisión, el presentador dijo que el sistema de votación era obsoleto.

In the world of education and academia, professors use 'obsoleto' to describe theories or textbooks that have been debunked or superseded by new research. A history professor might explain how a particular interpretation of an event has become 'obsoleta' due to the discovery of new archives. This helps students understand that knowledge is not static but evolves over time.

In the Media
Documentaries about the industrial revolution or the history of transport frequently use the word to describe the transition between eras. 'Con la llegada del vapor, los molinos de viento quedaron obsoletos.' It serves as a historical marker for the end of one technology's dominance.

Finally, you will hear it in casual conversation among friends when talking about old habits or gadgets. If a friend pulls out an old iPod, someone might jokingly say, '¡Eso ya está obsoleto, usa Spotify!' While it's a formal-sounding word, its use in casual settings often adds a touch of emphasis or humor to how 'out of date' something is. It's more dramatic than just saying 'viejo'.

El artículo de opinión criticaba las prácticas empresariales obsoletas de la vieja guardia.

Muchos expertos creen que el motor de combustión será obsoleto en veinte años.

¿Todavía usas ese programa? ¡Pero si está totalmente obsoleto!

One of the most frequent mistakes English speakers make when using 'obsoleto' is confusing it with 'viejo'. While all things that are 'obsoleto' are technically old in terms of their technology, not all 'viejo' things are 'obsoleto'. A 1960s classic car is 'viejo' and 'antiguo', but it is not 'obsoleto' because it still functions perfectly for its purpose (driving and being a collector's item). However, a computer from 2010 is 'obsoleto' because it cannot fulfill its primary function in a modern context. Using 'obsoleto' when you just mean 'old' can make you sound overly technical or accidentally insulting.

Gender Agreement Errors
Because 'obsolete' in English is gender-neutral, learners often forget to change the ending in Spanish. Saying 'la máquina obsoleto' is a common error. Always remember to match the ending to the noun: 'la máquina obsoleta'.

Another mistake is using 'obsoleto' to describe people. In English, you might say 'I feel obsolete' to mean you feel out of touch with modern trends. In Spanish, saying 'me siento obsoleto' is grammatically possible but sounds very strange and somewhat dehumanizing, as if you are comparing yourself to a broken machine. It is better to use 'desfasado' (out of step/out of touch) or 'anticuado' (old-fashioned). For example: 'Me siento un poco desfasado con las nuevas redes sociales.'

Incorrecto: El sistema es obsoleta. Correcto: El sistema es obsoleto.

Learners also struggle with the placement of the adjective. While 'obsoleto' usually follows the noun ('un equipo obsoleto'), placing it before the noun ('un obsoleto equipo') is theoretically possible in poetic or highly formal Spanish, but it sounds very unnatural in everyday speech. Stick to placing it after the noun to ensure clarity and natural flow.

Overusing the Word
Some learners use 'obsoleto' for everything that is slightly out of style. If a shirt is from last season, it's not 'obsoleto'; it's 'pasado de moda'. Use 'obsoleto' for things that have a functional or systemic replacement.

Finally, be careful with the verb hacer. English speakers might try to say 'hacer algo obsoleto' (to make something obsolete). While understandable, it is more natural in Spanish to say 'dejar algo obsoleto' or 'convertir algo en obsoleto'. For example: 'Internet ha dejado obsoletas a las enciclopedias impresas.' This small change in verb choice will make your Spanish sound much more native and sophisticated.

Error común: Mi teléfono está caducado. Corrección: Mi teléfono está obsoleto.

Recuerda: 'Obsoleto' se refiere a la función, no solo a la edad.

To enrich your Spanish vocabulary, it is helpful to know words that are similar to 'obsoleto' but carry different shades of meaning. The most common alternative is anticuado. While 'obsoleto' focuses on lack of utility, 'anticuado' focuses on being old-fashioned or out of style. You might describe your grandmother's furniture as 'anticuado' (charming but old-fashioned), but you wouldn't call it 'obsoleto' unless it literally couldn't be sat upon anymore.

Obsoleto vs. Anticuado
'Obsoleto' is technical and functional. 'Anticuado' is aesthetic and social. Use 'obsoleto' for a broken system; use 'anticuado' for a person's dress sense or traditional manners.

Another useful word is desfasado. This word literally means 'out of phase'. It is often used to describe people or ideas that are not in sync with the current times. If someone is using slang from the 1980s, they are 'desfasados'. It is a bit more informal than 'obsoleto' and is frequently used in social contexts to describe someone who doesn't understand modern trends or technology.

Esa tecnología es obsoleta, pero este diseño es simplemente anticuado.

In legal and official contexts, you will see the word caduco. While 'obsoleto' means out of date due to progress, 'caduco' means something has reached its expiration or lost its validity. A permit that has expired is 'caduco'. A law that is no longer in force is 'caduca'. 'Obsoleto' is about being 'behind the times', while 'caduco' is about 'running out of time'.

Obsoleto vs. Pasado de Moda
'Pasado de moda' is the direct equivalent of 'out of style'. It is used exclusively for fashion, music, and trends. You would never call a computer 'pasado de moda' unless you were talking specifically about its aesthetic design rather than its processing power.

Lastly, consider the term en desuso. This is a very precise way to say 'no longer in use'. While 'obsoleto' explains *why* something isn't used (because it's outclassed), 'en desuso' simply states the fact that it isn't being used. A path in a forest might be 'en desuso', but it's not 'obsoleto' because paths don't really get replaced by 'high-tech paths'. This distinction is subtle but helps in choosing the most accurate word for the situation.

El término técnico ha quedado en desuso, sustituido por uno más moderno.

Sus argumentos son arcaicos y no tienen lugar en la ciencia moderna.

Esta normativa está caduca desde el año pasado.

How Formal Is It?

Formal

"La infraestructura de telecomunicaciones ha quedado obsoleta ante la demanda actual."

Neutral

"Ese modelo de teléfono ya está obsoleto."

Informal

"¡Tira eso! Está súper obsoleto."

Child friendly

"Ese juguete es muy antiguo y ya no funciona como los nuevos."

Slang

"Tu móvil es del año de la pera, está obsoleto total."

Fun Fact

The Latin root 'ob-' means 'away' and 'solere' means 'to be accustomed to'. So, literally, it means 'away from what one is accustomed to using'.

Pronunciation Guide

UK /ob.so.ˈle.to/
US /ob.so.ˈle.to/
The stress is on the penultimate syllable: ob-so-LE-to.
Rhymes With
amuleto secreto completo respeto boceto decreto folleto sujeto
Common Errors
  • Pronouncing the 'b' too strongly like in English 'obsolete'. In Spanish, it is softer.
  • Making the final 'o' sound like 'ow'. It should be a crisp 'oh' sound.
  • Putting the stress on the last syllable (ob-so-le-TO).
  • Failing to change the ending to 'a' for feminine nouns.
  • Pronouncing the 's' like a 'z'.

Difficulty Rating

Reading 3/5

Easy to recognize because it is a cognate of 'obsolete'.

Writing 4/5

Requires attention to gender and number agreement.

Speaking 4/5

Must remember to use it for things, not people.

Listening 3/5

Clear pronunciation, often used in tech and news.

What to Learn Next

Prerequisites

viejo nuevo tecnología sistema usar

Learn Next

innovación actualizar reemplazar vigente caducado

Advanced

obsolescencia anacronismo arcaísmo desfase derogación

Grammar to Know

Adjective-Noun Agreement

El sistema (masculine) obsoleto; la máquina (feminine) obsoleta.

Use of 'Quedar' for Changes in State

El equipo quedó obsoleto tras la tormenta.

Pluralization of Adjectives ending in -o

Los métodos obsoletos; las leyes obsoletas.

Ser vs. Estar with Adjectives

Es obsoleto (inherent quality) vs. Está obsoleto (current state).

Position of Adjectives

Usually follows the noun: 'tecnología obsoleta'.

Examples by Level

1

Mi teléfono es muy viejo y está obsoleto.

My phone is very old and is obsolete.

Uses 'estar' to describe a current state.

2

Ese ordenador es obsoleto.

That computer is obsolete.

'Obsoleto' matches the masculine noun 'ordenador'.

3

La radio de mi abuelo no es obsoleta.

My grandfather's radio is not obsolete.

Negative sentence structure.

4

¿Es este juego obsoleto?

Is this game obsolete?

Question format.

5

Tengo una cámara obsoleta.

I have an obsolete camera.

'Obsoleta' matches the feminine noun 'cámara'.

6

Los disquetes son obsoletos.

Floppy disks are obsolete.

Plural masculine agreement.

7

Esta televisión está obsoleta.

This television is obsolete.

Feminine singular agreement.

8

No quiero un coche obsoleto.

I don't want an obsolete car.

Adjective following the noun.

1

Los mapas de papel están quedando obsoletos.

Paper maps are becoming obsolete.

Uses 'quedar' to show a transition.

2

Mi antiguo jefe usaba métodos obsoletos.

My former boss used obsolete methods.

Plural masculine agreement with 'métodos'.

3

Esa tecnología ya es obsoleta en Europa.

That technology is already obsolete in Europe.

Use of 'ya' to indicate the current status.

4

No compres ese modelo, es obsoleto.

Don't buy that model, it's obsolete.

Imperative followed by a justification.

5

Las máquinas de escribir son obsoletas hoy.

Typewriters are obsolete today.

Plural feminine agreement.

6

Este sistema de seguridad está obsoleto.

This security system is obsolete.

Describes a functional state.

7

Buscamos reemplazar el equipo obsoleto.

We are looking to replace the obsolete equipment.

Adjective modifying the object of the verb.

8

Las leyes de tráfico eran obsoletas.

The traffic laws were obsolete.

Imperfect tense to describe a past state.

1

Muchos procesos industriales han quedado obsoletos.

Many industrial processes have become obsolete.

Present perfect with 'quedar'.

2

Es difícil trabajar con un software tan obsoleto.

It is difficult to work with such obsolete software.

Use of 'tan' for emphasis.

3

La empresa debe evitar que su tecnología quede obsoleta.

The company must prevent its technology from becoming obsolete.

Subjunctive mood after 'evitar que'.

4

Ese libro de medicina está totalmente obsoleto.

That medicine book is totally obsolete.

Adverbial intensification with 'totalmente'.

5

Consideramos que el plan actual es obsoleto.

We consider that the current plan is obsolete.

Expressing an opinion.

6

Las cabinas telefónicas son ahora objetos obsoletos.

Telephone booths are now obsolete objects.

Noun-adjective pair in a plural sentence.

7

Si no actualizas el sistema, quedará obsoleto en un año.

If you don't update the system, it will be obsolete in a year.

Future tense with 'quedar'.

8

Esa mentalidad es obsoleta para el siglo veintiuno.

That mindset is obsolete for the twenty-first century.

Metaphorical use for abstract concepts.

1

La obsolescencia programada hace que los productos sean obsoletos pronto.

Planned obsolescence makes products obsolete soon.

Subjunctive mood in a result clause.

2

El gobierno planea derogar varias leyes obsoletas.

The government plans to repeal several obsolete laws.

Legal/political vocabulary context.

3

A pesar de ser obsoleto, el equipo sigue funcionando.

Despite being obsolete, the equipment still works.

Concessive clause with 'A pesar de'.

4

La infraestructura ferroviaria se ha vuelto obsoleta.

The railway infrastructure has become obsolete.

Reflexive verb 'volverse' to indicate change.

5

Es un error basar la estrategia en datos obsoletos.

It is a mistake to base the strategy on obsolete data.

Infinitive as a subject.

6

El diseño de la interfaz parece un poco obsoleto.

The interface design looks a bit obsolete.

Use of 'parecer' to express an impression.

7

Muchos temen que sus habilidades se queden obsoletas.

Many fear that their skills will become obsolete.

Subjunctive expressing fear.

8

El uso de carbón es un método obsoleto de generar energía.

The use of coal is an obsolete method of generating energy.

Environmental/technical context.

1

La rápida innovación tecnológica condena a los dispositivos a ser obsoletos en meses.

Rapid technological innovation condemns devices to be obsolete in months.

High-level vocabulary like 'condena'.

2

Sus teorías económicas han sido tachadas de obsoletas por los expertos.

His economic theories have been branded as obsolete by experts.

Passive voice with 'ser tachado de'.

3

La arquitectura del edificio es funcionalmente obsoleta para las necesidades modernas.

The building's architecture is functionally obsolete for modern needs.

Use of the adverb 'funcionalmente'.

4

El tratado internacional se considera obsoleto tras los recientes conflictos.

The international treaty is considered obsolete following recent conflicts.

Passive reflexive 'se considera'.

5

No podemos permitir que nuestra burocracia siga siendo tan obsoleta.

We cannot allow our bureaucracy to continue being so obsolete.

Complex verbal structure with 'permitir que' and 'seguir siendo'.

6

Existe un debate sobre si el concepto de privacidad es ya obsoleto.

There is a debate about whether the concept of privacy is already obsolete.

Abstract philosophical application.

7

Las tácticas de guerrilla dejaron obsoletos a los ejércitos convencionales.

Guerrilla tactics made conventional armies obsolete.

Causative use of 'dejar'.

8

El lenguaje utilizado en el contrato es arcaico y, en parte, obsoleto.

The language used in the contract is archaic and, in part, obsolete.

Distinguishing between 'arcaico' and 'obsoleto'.

1

La ontología del objeto obsoleto nos invita a reflexionar sobre el consumo.

The ontology of the obsolete object invites us to reflect on consumption.

Philosophical/academic register.

2

Se percibe una obsolescencia moral en ciertos sectores de la política actual.

A moral obsolescence is perceived in certain sectors of current politics.

Abstract noun form 'obsolescencia'.

3

La dialéctica entre lo nuevo y lo obsoleto define la estética de la modernidad.

The dialectic between the new and the obsolete defines the aesthetics of modernity.

Use of 'lo' to create abstract nouns from adjectives.

4

El sistema educativo corre el riesgo de volverse obsoleto si no integra la inteligencia artificial.

The educational system risks becoming obsolete if it does not integrate artificial intelligence.

Conditional structure with complex verbal phrases.

5

Paradójicamente, lo que hoy es vanguardia, mañana será irremediablemente obsoleto.

Paradoxically, what is avant-garde today will be irremediably obsolete tomorrow.

Use of 'irremediablemente' for rhetorical weight.

6

La legislación vigente ha quedado obsoleta ante la celeridad de los cambios biotecnológicos.

Current legislation has become obsolete in the face of the speed of biotechnological changes.

Formal prepositional phrase 'ante la celeridad de'.

7

El crítico argumenta que el formato de novela tradicional es ya un género obsoleto.

The critic argues that the traditional novel format is already an obsolete genre.

Literary criticism context.

8

La obsolescencia del conocimiento obliga a una formación continua y permanente.

The obsolescence of knowledge mandates continuous and permanent training.

Noun form as a subject in a formal sentence.

Common Collocations

tecnología obsoleta
quedar obsoleto
sistema obsoleto
leyes obsoletas
métodos obsoletos
totalmente obsoleto
infraestructura obsoleta
maquinaria obsoleta
conceptos obsoletos
equipo obsoleto

Common Phrases

ha quedado obsoleto

— It has become out of date. Used to describe a recent change in status.

El manual ha quedado obsoleto tras la reforma.

está quedando obsoleto

— It is becoming out of date. Used for an ongoing process.

El dinero físico está quedando obsoleto.

obsolescencia programada

— Planned obsolescence. The practice of designing products to break.

La obsolescencia programada es un problema ambiental.

tecnológicamente obsoleto

— Technologically out of date. Specifically refers to tech specs.

Este chip ya es tecnológicamente obsoleto.

prácticamente obsoleto

— Practically obsolete. Almost completely useless.

Ese formato de video es prácticamente obsoleto.

socialmente obsoleto

— Socially out of date. Refers to norms or behaviors.

Esos modales son socialmente obsoletos.

funcionalmente obsoleto

— Functionally obsolete. It still works but doesn't meet needs.

El edificio es funcionalmente obsoleto.

moralmente obsoleto

— Morally out of date. Refers to ethical standards.

Su código de ética es moralmente obsoleto.

normativa obsoleta

— Outdated regulation. Common in legal contexts.

Estamos operando bajo una normativa obsoleta.

conocimiento obsoleto

— Outdated knowledge. Information that is no longer true.

No estudies eso, es conocimiento obsoleto.

Often Confused With

obsoleto vs caducado

Caducado is for expiration dates (food, passports). Obsoleto is for technology/utility.

obsoleto vs anticuado

Anticuado is for style/fashion. Obsoleto is for function/modernity.

obsoleto vs viejo

Viejo refers to age. Obsoleto refers to being outclassed by new versions.

Idioms & Expressions

"estar en el baúl de los recuerdos"

— To be in the trunk of memories. Used for things that are obsolete and forgotten.

Esa canción ya está en el baúl de los recuerdos.

informal
"ser del año de la pera"

— To be from the year of the pear. Very old and obsolete.

Tu ordenador es del año de la pera.

slang
"ser una reliquia"

— To be a relic. Something so old it should be in a museum.

Este teléfono es una reliquia.

neutral
"quedarse en la prehistoria"

— To stay in prehistory. To be extremely out of date.

Con esa tecnología te has quedado en la prehistoria.

informal
"pasar a mejor vida"

— To pass to a better life. Usually means to die, but used for machines that are finally obsolete.

Mi vieja impresora ha pasado a mejor vida.

informal
"ser un trasto"

— To be a piece of junk. An obsolete, useless object.

Esa televisión es un trasto viejo.

informal
"estar pasado de rosca"

— To be worn out or out of touch. Sometimes applied to obsolete ideas.

Sus argumentos están pasados de rosca.

informal
"no estar a la última"

— To not be at the latest (trend). To be slightly obsolete.

En tecnología, nunca estoy a la última.

neutral
"ser agua pasada"

— To be water under the bridge. Something obsolete that no longer matters.

Esa vieja tecnología ya es agua pasada.

neutral
"estar de capa caída"

— To be in decline. Often leads to becoming obsolete.

El mercado de periódicos impresos está de capa caída.

informal

Easily Confused

obsoleto vs desfasado

Both mean out of date.

Desfasado is more about being out of sync with trends or time, often used for people. Obsoleto is for objects and systems.

Él está desfasado con la música actual, pero su tocadiscos no es obsoleto.

obsoleto vs antiguo

Both refer to things from the past.

Antiguo can be positive (antique, valuable). Obsoleto is usually negative (useless).

Este reloj antiguo funciona bien, pero ese reloj digital barato ya es obsoleto.

obsoleto vs arcaico

Both mean very old.

Arcaico implies from a very distant past (ancient). Obsoleto implies recently replaced.

Usar un ábaco es arcaico; usar una calculadora de los 80 es obsoleto.

obsoleto vs pasado

Both mean in the past.

Pasado is general. Obsoleto is specific to the loss of utility.

El tiempo pasado no vuelve, y este software obsoleto tampoco.

obsoleto vs jubilado

Sometimes people use it for retired things.

Jubilado is only for people who have retired from work. Obsoleto is for things.

Mi abuelo está jubilado, pero su mente no es obsoleta.

Sentence Patterns

A1

El [objeto] es obsoleto.

El teléfono es obsoleto.

A2

Los [objetos] son obsoletos.

Los ordenadores son obsoletos.

B1

El [sistema] ha quedado obsoleto.

El sistema ha quedado obsoleto.

B1

Es una [cosa] obsoleta.

Es una ley obsoleta.

B2

Debido a [causa], el [objeto] está obsoleto.

Debido al internet, el fax está obsoleto.

B2

Evitar que [algo] quede obsoleto.

Debemos evitar que el equipo quede obsoleto.

C1

[Algo] es funcionalmente obsoleto.

El edificio es funcionalmente obsoleto.

C2

La obsolescencia de [concepto] implica [consecuencia].

La obsolescencia del conocimiento implica formación constante.

Word Family

Nouns

Verbs

Adjectives

Related

How to Use It

frequency

High in technical, news, and business contexts.

Common Mistakes
  • El sistema es obsoleta. El sistema es obsoleto.

    The noun 'sistema' is masculine, so the adjective must end in -o.

  • Mi leche está obsoleta. Mi leche está caducada.

    Use 'caducado' for food items with an expiration date.

  • Ese hombre es obsoleto. Ese hombre es anticuado.

    'Obsoleto' is for things; using it for people is insulting or weird.

  • La tecnología ha hecho obsoleto el libro. La tecnología ha dejado obsoleto el libro.

    'Dejar obsoleto' is the standard idiomatic way to express this in Spanish.

  • Es un obsoleto sistema. Es un sistema obsoleto.

    Adjectives usually follow the noun in Spanish, especially technical ones.

Tips

Gender Check

Always check the noun gender. Technology is 'la tecnología', so it must be 'obsoleta' with an 'a'.

Professionalism

Use 'obsoleto' in work emails to explain why you need new equipment. It sounds more convincing than 'viejo'.

Verb Choice

Learn 'quedar obsoleto'. It's the most natural way to say something 'has become' out of date.

Soft B

In Spanish, the 'b' in 'obsoleto' is very soft, almost like a 'v'. Don't pop it like an English 'b'.

Eco-friendly

Mention 'obsolescencia programada' to start an interesting conversation about the environment in Spanish.

Adjective Order

Place 'obsoleto' after the noun. 'Sistema obsoleto' is correct; 'obsoleto sistema' is too poetic for daily use.

News Keywords

If you hear 'obsoleto' in the news, they are likely talking about technology, laws, or old infrastructure.

Object So Late

Remember: Ob-So-Leto = Object So Late. It's too late for this object to be useful!

Politeness

Never use 'obsoleto' for a person. Use 'tradicional' or 'de antes' if you want to be kind.

Theories

In essays, use 'obsoleto' to describe scientific theories that have been replaced by new discoveries.

Memorize It

Mnemonic

Think of an 'Old Boot' that is 'So' 'Late' to the fashion show. OB-SO-LETE. It's so late that it's now obsolete!

Visual Association

Imagine a dusty floppy disk sitting next to a sleek modern cloud icon. The disk is the definition of 'obsoleto'.

Word Web

Tecnología Leyes Ideas Viejo Sustitución Progreso Desuso Innovación

Challenge

Try to find three things in your house that are 'obsoletos' and describe them in Spanish to a friend.

Word Origin

From the Latin 'obsoletus', which is the past participle of 'obsolescere' (to wear out, to fall into disuse).

Original meaning: Worn out, decayed, or no longer in use.

It belongs to the Italic branch of the Indo-European family, specifically Romance.

Cultural Context

Avoid calling elderly people 'obsoletos'. It is much more polite to say 'de la vieja escuela' (old school) or 'tradicional'.

The word 'obsolete' is a direct cognate, making it easy for English speakers to recognize, though they must learn the Spanish gender rules.

The documentary 'Comprar, tirar, comprar' (The Light Bulb Conspiracy) about planned obsolescence. Economic theories by Bernard London who proposed 'planned obsolescence' during the Great Depression. Cyberpunk literature often features 'tecnología obsoleta' as a stylistic choice.

Practice in Real Life

Real-World Contexts

Tecnología e Informática

  • Software obsoleto
  • Hardware obsoleto
  • Versión obsoleta
  • Actualización necesaria

Leyes y Normativa

  • Ley obsoleta
  • Reglamento obsoleto
  • Normativa obsoleta
  • Reforma legislativa

Educación y Métodos

  • Método obsoleto
  • Libro obsoleto
  • Teoría obsoleta
  • Enseñanza tradicional

Industria y Negocios

  • Maquinaria obsoleta
  • Proceso obsoleto
  • Modelo de negocio obsoleto
  • Inversión en equipo

Sociedad e Ideas

  • Mentalidad obsoleta
  • Costumbres obsoletas
  • Ideas obsoletas
  • Progreso social

Conversation Starters

"¿Crees que los libros de papel quedarán obsoletos pronto?"

"¿Qué tecnología de tu infancia es ahora totalmente obsoleta?"

"¿Es la obsolescencia programada un robo al consumidor?"

"¿Conoces alguna ley en tu país que sea obsoleta?"

"¿Cómo evitas que tus conocimientos profesionales queden obsoletos?"

Journal Prompts

Describe un objeto que tengas en casa que sea obsoleto y explica por qué ya no lo usas.

Escribe sobre una idea o creencia que antes tenías y que ahora consideras obsoleta.

Imagina el mundo en cincuenta años. ¿Qué cosas de hoy serán obsoletas entonces?

Reflexiona sobre el impacto ambiental de que la tecnología quede obsoleta tan rápido.

¿Crees que el concepto de oficina física se está volviendo obsoleto? Argumenta tu respuesta.

Frequently Asked Questions

10 questions

No es recomendable. Decir que una persona es 'obsoleta' suena muy rudo y deshumanizante. Es mejor decir que sus 'ideas' son obsoletas o que la persona está 'desfasada' o 'anticuada'.

'Caducado' se refiere a algo que tiene una fecha de vencimiento, como la leche o un yogur. 'Obsoleto' se refiere a algo que ya no sirve porque hay una tecnología mejor.

Se dice 'obsolescencia programada'. Es un término muy común en debates sobre ecología y economía.

Es una palabra de registro neutral a formal. Se usa mucho en el trabajo, en las noticias y en la universidad.

Normalmente no. Para la ropa se usa 'pasado de moda'. Solo usarías 'obsoleto' para ropa técnica, como un traje espacial viejo que ya no protege.

Los antónimos más comunes son 'moderno', 'actual' y 'vanguardista'.

Sí, se usa constantemente en contextos de tecnología, política y negocios en España y toda Hispanoamérica.

Se escribe 'obsoletas'. Ejemplo: 'Las máquinas obsoletas'.

Depende. 'Ser obsoleto' es una característica. 'Estar obsoleto' es un estado. 'Quedar obsoleto' indica el proceso de volverse viejo.

Sí, es un cognado perfecto de 'obsolete', lo que facilita mucho su aprendizaje para angloparlantes.

Test Yourself 182 questions

writing

Escribe una frase usando 'obsoleto' para describir un teléfono viejo.

Well written! Good try! Check the sample answer below.

Correct! Not quite. Correct answer:
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Escribe una frase sobre leyes que ya no sirven.

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Correct! Not quite. Correct answer:
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Escribe una frase usando 'quedar obsoleto'.

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Escribe una frase sobre la tecnología de los 90.

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Escribe una frase sobre métodos de enseñanza antiguos.

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Escribe una frase sobre la obsolescencia programada.

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Escribe una frase sobre un ordenador lento.

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Escribe una frase sobre mapas de papel.

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Escribe una frase sobre maquinaria de fábrica.

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Escribe una frase sobre ideas del pasado.

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Escribe una frase sobre un manual de instrucciones.

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Escribe una frase sobre el uso del fax.

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Escribe una frase sobre software antiguo.

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Escribe una frase sobre cámaras de rollo.

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Escribe una frase sobre conocimientos técnicos.

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Escribe una frase sobre la infraestructura de una ciudad.

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Escribe una frase sobre un plan de estudios.

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Escribe una frase sobre tácticas de marketing.

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Escribe una frase sobre un tratado internacional.

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Escribe una frase sobre la moda (pero usa obsoleto correctamente).

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speaking

Pronuncia: 'obsoleto'. Asegúrate de acentuar la penúltima sílaba.

Read this aloud:

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Pronuncia: 'tecnología obsoleta'.

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Di en voz alta: 'Mi ordenador ha quedado obsoleto'.

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Explica con tus palabras qué es la 'obsolescencia programada'.

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Pronuncia: 'leyes obsoletas'.

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Di: 'Este sistema es totalmente obsoleto'.

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Pronuncia: 'obsolescencia'.

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Di: 'Los disquetes son obsoletos'.

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Di: 'No quiero métodos obsoletos'.

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Pronuncia: 'funcionalmente obsoleto'.

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Di: 'La infraestructura es obsoleta'.

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Di: 'Ideas obsoletas'.

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Di: 'El fax está obsoleto'.

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Di: 'Equipos obsoletos'.

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Di: 'Mentalidad obsoleta'.

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Di: 'Maquinaria obsoleta'.

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Di: 'Procesos obsoletos'.

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Di: 'Versión obsoleta'.

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Di: 'Tratado obsoleto'.

Read this aloud:

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Di: 'Formato obsoleto'.

Read this aloud:

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listening

Escucha e identifica la palabra: 'Este sistema está obsoleto'.

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listening

Escucha e identifica el plural: 'Las leyes son obsoletas'.

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listening

Escucha e identifica el verbo: 'El equipo ha quedado obsoleto'.

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listening

Escucha y escribe la frase: 'La tecnología obsoleta es un problema'.

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listening

Identifica el adjetivo: 'Buscamos un reemplazo para el hardware obsoleto'.

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listening

Escucha e identifica el sustantivo: 'La obsolescencia programada es real'.

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listening

Escucha: 'Esos métodos son obsoletos'. ¿De qué estamos hablando?

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listening

Escucha: 'El manual quedó obsoleto'. ¿Sigue sirviendo el manual?

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listening

Escucha: 'Sus ideas son obsoletas'. ¿Son ideas modernas?

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listening

Escucha: 'Es un modelo obsoleto'. ¿Debo comprarlo?

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listening

Escucha: 'La infraestructura es obsoleta'. ¿Qué necesita la infraestructura?

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Escucha: 'Software obsoleto'. ¿Qué debemos hacer?

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listening

Escucha: 'Equipos obsoletos'. ¿Cuántos equipos hay?

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listening

Escucha: 'Mentalidad obsoleta'. ¿A qué se refiere?

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listening

Escucha: 'Formato obsoleto'. ¿Puedo abrir el archivo?

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/ 182 correct

Perfect score!

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