When we describe something or someone as unreliable at the C1 level, we're conveying a deeper sense of a consistent lack of dependability or trustworthiness. It's not merely an occasional lapse, but rather an inherent characteristic suggesting that one cannot consistently count on its performance, accuracy, or presence. This could apply to a car that frequently breaks down, a source of information that often provides inaccurate data, or even an individual who habitually fails to meet commitments. Therefore, identifying something as unreliable implies a significant and recurrent pattern of failure to meet expectations or fulfill obligations.
When something or someone is described as unreliable, it signifies a consistent lack of dependability or trustworthiness. This adjective is applied to entities that fail to perform as expected or promised, leading to a lack of confidence in their consistency or accuracy.
It encapsulates a fundamental inability to be counted upon, whether in terms of mechanical operation, information provision, or personal commitment. The implication is often a pattern of inconsistency or failure that undermines faith in its ability to deliver or function correctly over time.
§ Grammar and Usage
The word "unreliable" is an adjective, which means it describes a noun. It's often used to describe people, machines, information, or even systems that don't consistently meet expectations or perform as they should. Understanding how to correctly place "unreliable" in a sentence is key to using it effectively.
- Placement in a sentence
- As an adjective, "unreliable" typically comes before the noun it modifies, or after a linking verb (like 'is', 'are', 'was', 'were', 'seems', 'becomes') that connects it to the subject.
The old car proved to be unreliable on long journeys.
His information is often unreliable, so you should double-check it.
§ Common Prepositions and Phrases
While "unreliable" doesn't always require a preposition, it can be paired with certain prepositions to give more specific context to what or who is unreliable. Here are some common ways to use it:
- Unreliable for: This often indicates the specific task or purpose for which something is not dependable.
The internet connection is unreliable for online gaming.
- Unreliable to: Less common, but can be used to describe someone who is not dependable to a particular person.
He proved unreliable to his team, constantly missing deadlines.
- Unreliable source: This is a very common phrase, indicating that information or data comes from a place that cannot be trusted.
You shouldn't trust everything you read; some websites are unreliable sources of information.
§ Tips for Using "Unreliable"
By keeping these grammar rules and common uses in mind, you can confidently integrate "unreliable" into your vocabulary to accurately describe situations where dependability is lacking.
§ Common Mistakes with "Unreliable"
The word "unreliable" is generally straightforward, but its nuances can sometimes lead to minor misapplications or awkward phrasing. Understanding these common pitfalls can help you use the word more precisely and naturally.
- DEFINITION
- Not reliable; not able to be trusted or depended upon. Something or someone that is unreliable cannot be counted on to perform consistently or accurately.
§ 1. Using "Unreliable" for Temporary Malfunctions
One common mistake is to use "unreliable" to describe something that is experiencing a temporary malfunction or a one-time failure. While an unreliable item might malfunction, "unreliable" implies a consistent pattern of not working as expected, rather than an isolated incident.
Incorrect: "My car is unreliable today because the battery died."
Correct: "My car is usually unreliable; it often breaks down unexpectedly."
§ 2. Confusing "Unreliable" with "Untrustworthy" in all contexts
While an unreliable person can certainly be untrustworthy, the two words aren't always interchangeable, especially when referring to objects or data. "Untrustworthy" often carries a stronger connotation of deceit or intentional misleading, whereas "unreliable" simply means not consistently performing as expected.
Incorrect (for data): "The data is untrustworthy because the sensor sometimes gives inaccurate readings."
Correct (for data): "The data is unreliable because the sensor sometimes gives inaccurate readings."
§ 3. Overusing "Very Unreliable"
The word "unreliable" already carries a strong negative connotation. Adding "very" often adds little extra emphasis and can sometimes sound redundant or less impactful than using a stronger synonym or providing more context.
Awkward: "His internet connection is very unreliable."
Better: "His internet connection is consistently unreliable, dropping out several times an hour."
Even better (stronger synonym): "His internet connection is notoriously fickle/erratic."
§ 4. Using "Unreliable" as a Noun without an Article
As an adjective, "unreliable" describes a noun. While you can sometimes use adjectives as nouns (e.g., "the poor," "the brave"), it's uncommon and often grammatically incorrect or awkward with "unreliable" unless preceded by an article (like "an") and referring to a person.
Incorrect: "He is unreliable." (grammatically correct, but can be improved for nuance)
Correct: "He is an unreliable person."
Correct: "The data source proved to be unreliable."
By being mindful of these common mistakes, you can ensure that you use "unreliable" with precision, conveying exactly the intended meaning of inconsistency and lack of dependability.
§ Understanding 'Unreliable'
The adjective "unreliable" describes something or someone that cannot be trusted or depended upon. It implies a lack of consistency, accuracy, or integrity in performance, behavior, or information. When you label something as unreliable, you're suggesting it frequently fails to meet expectations or deliver on its promises.
- DEFINITION
- Not reliable; not able to be trusted or depended upon. Something or someone that is unreliable cannot be counted on to perform consistently or accurately.
The old car was so unreliable that we decided to buy a new one.
Her internet connection is often unreliable, making it difficult to hold video calls.
§ Similar Words and Nuances
While "unreliable" is a straightforward term, several other words share similar meanings but with distinct nuances. Understanding these differences will help you choose the most precise word for your context.
- Inconsistent: This term emphasizes a lack of uniformity or regularity. Something inconsistent might be reliable sometimes but not always. An unreliable thing is almost always inconsistent, but an inconsistent thing isn't always fully unreliable.
His performance at work has been very inconsistent lately, making it hard to predict his output.
- Untrustworthy: This word points directly to a lack of trustworthiness, often implying deceit or a moral failing. While an unreliable person might simply be forgetful, an untrustworthy person might intentionally mislead you.
The politician proved to be untrustworthy after several broken promises.
- Faulty: This term is typically used for objects or systems that have a defect or malfunction. A faulty device is unreliable because it doesn't work correctly.
The faulty wiring caused the lights to flicker intermittently.
- Erratic: This describes behavior or performance that is unpredictable and irregular. An erratic pattern might not necessarily be unreliable in terms of complete failure, but it makes prediction and dependence difficult.
The stock market has been very erratic this week, making investors nervous.
- Fickle: This word specifically describes someone who changes their mind or affections frequently and without good reason. It applies more to personal dispositions than to mechanical or informational reliability.
The weather in spring can be quite fickle, one moment sunny and the next raining.
§ When to Use 'Unreliable'
Use "unreliable" when you want to convey a general inability to be trusted or depended upon, whether due to inconsistency, malfunction, or a lack of integrity. It's a broad term that can apply to people, systems, data, or objects.
Consider using "unreliable" when:
- A person frequently fails to keep appointments or commitments.
- A piece of equipment often breaks down or doesn't work as expected.
- Information or data is often inaccurate or inconsistent.
- A service is frequently unavailable or performs poorly.
How Formal Is It?
"The witness's testimony was deemed untrustworthy due to inconsistencies."
"The old car proved unreliable on long journeys."
"Don't count on John; he's pretty flaky with his commitments."
"That toy is not dependable; it breaks every time I play with it."
"That dude's story sounds really sketchy, I don't believe him."
Examples by Level
The old car is very unreliable; it often breaks down.
La vieille voiture est très peu fiable; elle tombe souvent en panne.
Here, 'unreliable' describes the car's general tendency to break down.
His internet connection is so unreliable that he can't stream movies.
Sa connexion internet est si peu fiable qu'il ne peut pas regarder des films en streaming.
'Unreliable' modifies 'internet connection', indicating its inconsistent performance.
I find her promises unreliable; she rarely keeps her word.
Je trouve ses promesses peu fiables; elle tient rarement parole.
This sentence uses 'unreliable' to describe promises, suggesting they are not trustworthy.
The weather forecast was unreliable, so we brought umbrellas for nothing.
Les prévisions météorologiques étaient peu fiables, nous avons donc apporté des parapluies pour rien.
Here, 'unreliable' refers to the inaccuracy of the weather forecast.
He's an unreliable narrator in the story, so we can't trust everything he says.
C'est un narrateur peu fiable dans l'histoire, donc nous ne pouvons pas croire tout ce qu'il dit.
'Unreliable narrator' is a common literary term, meaning the character telling the story isn't trustworthy.
The train schedule is often unreliable, causing many delays.
L'horaire des trains est souvent peu fiable, ce qui cause de nombreux retards.
'Unreliable' modifies 'train schedule', indicating it's not consistent or accurate.
Due to unreliable transportation, she often arrived late for work.
En raison de transports peu fiables, elle arrivait souvent en retard au travail.
This shows 'unreliable' describing a system, in this case, transportation.
Don't rely on that old machine; it's quite unreliable now.
Ne comptez pas sur cette vieille machine; elle est assez peu fiable maintenant.
This is a direct command followed by an explanation using 'unreliable' to describe the machine's current state.
The old car proved unreliable on long journeys, often breaking down unexpectedly.
El coche viejo resultó poco fiable en viajes largos, a menudo averiándose inesperadamente.
Past tense, focusing on a past instance of unreliability.
Her internet connection is so unreliable that she frequently misses online meetings.
Su conexión a internet es tan poco fiable que a menudo pierde reuniones en línea.
Present tense, describing an ongoing state of unreliability.
He was considered unreliable by his colleagues because he often failed to meet deadlines.
Sus colegas lo consideraban poco fiable porque a menudo no cumplía con los plazos.
Passive voice, describing how others perceived his unreliability.
The weather forecast for tomorrow is highly unreliable, so we should be prepared for anything.
El pronóstico del tiempo para mañana es muy poco fiable, así que debemos estar preparados para cualquier cosa.
Present tense, referring to future uncertainty due to unreliability.
Investing in that company would be risky due to its unreliable financial performance.
Invertir en esa empresa sería arriesgado debido a su rendimiento financiero poco fiable.
Gerund as a subject, highlighting the consequence of unreliability.
Many customers complained about the unreliable delivery service, leading to lost packages.
Muchos clientes se quejaron del servicio de entrega poco fiable, lo que resultó en paquetes perdidos.
Past tense, describing past complaints about unreliability.
It's unreliable to base your decisions solely on rumors; always seek verifiable facts.
Es poco fiable basar tus decisiones únicamente en rumores; siempre busca hechos verificables.
It + adjective + infinitive, giving advice on avoiding unreliability.
Despite his intelligence, his unreliable attendance made him a less effective team member.
A pesar de su inteligencia, su asistencia poco fiable lo convirtió en un miembro del equipo menos efectivo.
Possessive adjective + noun, emphasizing the impact of unreliable attendance.
The old car proved to be completely unreliable, breaking down every other week.
The old car proved to be completely unreliable, breaking down every other week.
His unreliable internet connection made it difficult to participate in online meetings.
His unreliable internet connection made it difficult to participate in online meetings.
I wouldn't trust her with important tasks; she's known for being quite unreliable.
I wouldn't trust her with important tasks; she's known for being quite unreliable.
The weather forecast has been notoriously unreliable lately, so bring an umbrella just in case.
The weather forecast has been notoriously unreliable lately, so bring an umbrella just in case.
We can't rely on that outdated data; it's highly unreliable and could lead to incorrect conclusions.
We can't rely on that outdated data; it's highly unreliable and could lead to incorrect conclusions.
The public transportation system in that city is notoriously unreliable, often causing delays.
The public transportation system in that city is notoriously unreliable, often causing delays.
Due to unreliable sources, the journalist had to retract some of the information in her article.
Due to unreliable sources, the journalist had to retract some of the information in her article.
While his artistic talent is undeniable, his commitment to deadlines is unfortunately unreliable.
While his artistic talent is undeniable, his commitment to deadlines is unfortunately unreliable.
Despite his undeniable talent, his notoriously unreliable attendance record ultimately led to his dismissal from the prestigious orchestra.
Despite his undeniable talent, his notoriously unreliable attendance record ultimately led to his dismissal from the prestigious orchestra.
The ancient, poorly maintained infrastructure proved to be an unreliable foundation for the ambitious new urban development project.
The ancient, poorly maintained infrastructure proved to be an unreliable foundation for the ambitious new urban development project.
Her initial testimony, fraught with inconsistencies and significant omissions, was deemed unreliable by the discerning investigative committee.
Her initial testimony, fraught with inconsistencies and significant omissions, was deemed unreliable by the discerning investigative committee.
The antiquated navigation system, prone to frequent malfunctions, rendered the expedition's progress alarmingly unreliable.
The antiquated navigation system, prone to frequent malfunctions, rendered the expedition's progress alarmingly unreliable.
Historically, predictive models based solely on anecdotal evidence have proven to be notoriously unreliable in anticipating complex market fluctuations.
Historically, predictive models based solely on anecdotal evidence have proven to be notoriously unreliable in anticipating complex market fluctuations.
The once formidable alliance began to fracture, its commitment to shared objectives increasingly unreliable in the face of escalating geopolitical tensions.
The once formidable alliance began to fracture, its commitment to shared objectives increasingly unreliable in the face of escalating geopolitical tensions.
Scientific research, to be truly credible, must rely on rigorously tested methodologies, as anecdotal observations are inherently unreliable.
Scientific research, to be truly credible, must rely on rigorously tested methodologies, as anecdotal observations are inherently unreliable.
The company's long-standing reputation for product excellence was severely compromised by a series of unreliable product launches and subsequent customer dissatisfaction.
The company's long-standing reputation for product excellence was severely compromised by a series of unreliable product launches and subsequent customer dissatisfaction.
Grammar Patterns
Idioms & Expressions
"a broken reed"
Someone or something unreliable that offers no support when needed.
I was counting on him, but he turned out to be a broken reed.
neutral"as fickle as the wind"
Constantly changing and therefore unreliable.
Her moods are as fickle as the wind; you never know what to expect.
neutral"flaky"
Unreliable, eccentric, or a bit strange.
Don't count on him for a ride; he can be pretty flaky.
informal"come and go like the tide"
To be inconsistent in presence or availability, like the ebb and flow of the tide.
His commitment to the project seems to come and go like the tide.
neutral"not worth the paper it's written on"
Something (often a document or promise) that is completely worthless or unreliable.
That contract is not worth the paper it's written on; it offers no real security.
neutral"have feet of clay"
To have a fundamental flaw or weakness that makes one unreliable or susceptible to failure.
Despite his public image, the politician had feet of clay, constantly making unreliable promises.
formal"a fair-weather friend"
Someone who is only a friend when things are easy or convenient, and cannot be relied upon in difficult times.
When I lost my job, I found out who my real friends were, and who was just a fair-weather friend.
neutral"on thin ice"
In a precarious or risky situation, often due to unreliable performance or behavior.
He's been missing deadlines, and now his job is on thin ice.
informal"like a sieve"
Referring to someone with a very poor memory or an unreliable system that allows things to escape easily.
My memory is like a sieve lately; I can't remember anything.
neutral"blow hot and cold"
To frequently change one's mind or attitude about something, making them unreliable.
He blows hot and cold about his plans, so I never know what he's going to do.
neutralSentence Patterns
Subject + be + unreliable.
The old car is unreliable, especially in cold weather.
Subject + find + object + unreliable.
Many customers find the delivery service unreliable due to late packages.
It + be + unreliable + for + someone + to + verb.
It is unreliable for him to promise things he can't deliver.
Unreliable + noun.
She has an unreliable internet connection, which makes remote work difficult.
Subject + consider + object + unreliable + for + reason.
The manager considers the new software unreliable for handling sensitive data.
The fact that + clause + makes + object + unreliable.
The fact that the data is often inconsistent makes the report unreliable.
Subject + seem + unreliable + to + someone.
His excuses often seem unreliable to his colleagues.
Subject + prove + unreliable + in + context.
The initial tests proved unreliable in predicting the long-term effectiveness of the product.
How to Use It
The adjective unreliable describes something or someone that cannot be depended on. It's often used for things that are inconsistent in their performance or accuracy, or people who do not keep their promises. For example, 'The old car was unreliable in cold weather,' or 'He's an unreliable friend; he always cancels at the last minute.' It can also be used for data or information that is not accurate or trustworthy, such as 'The witness's testimony was deemed unreliable due to inconsistencies.'
One common mistake is confusing unreliable with 'disloyal' or 'untrustworthy' in all contexts. While an unreliable person might also be untrustworthy, unreliable specifically focuses on a lack of consistent performance or adherence to commitments, rather than a malicious intent to deceive. Another mistake is using it interchangeably with 'broken' or 'faulty' for objects. While an unreliable object might be faulty, 'faulty' suggests a defect, whereas unreliable emphasizes the inconsistency of its operation. For instance, a 'faulty brake' implies a specific defect, but 'an unreliable brake' suggests it sometimes works and sometimes doesn't. Also, ensure correct adverbial form: 'unreliably' (e.g., 'The system performs unreliably').
Tips
Contextual Learning
Learn unreliable within sentences. For example: 'The old car was unreliable, breaking down often.'
Antonyms
Understand its opposite. The antonyms for unreliable are 'reliable', 'trustworthy', or 'dependable'.
Synonyms
Explore words with similar meanings. Synonyms include 'inconsistent', 'erratic', or 'untrustworthy' when describing unreliable.
Sentence Construction
Create your own sentences using unreliable to solidify your understanding. For example: 'His promises were often unreliable.'
Word Families
Recognize related words like 'reliability' (noun) and 'reliably' (adverb) to understand the full scope of unreliable.
Visual Association
Imagine something that is unreliable, like a leaky faucet or a car that won't start, to create a memorable image.
Prefix and Suffix
Break down the word: 'un-' (not) + 'reliable'. Understanding prefixes helps with other words like 'unhappy' or 'unusual', making unreliable easier to grasp.
Real-Life Examples
Think of situations where something or someone might be described as unreliable, such as a weather forecast or a friend who is always late.
Pronunciation Practice
Practice saying unreliable aloud to improve your spoken English and recall of the word.
Flashcards
Use flashcards with unreliable on one side and its definition on the other for quick self-quizzing.
Memorize It
Mnemonic
Imagine a friend named 'Uncle Reliable' who is always late and cancels plans last minute. When you think of 'unreliable,' picture Uncle Reliable letting you down.
Visual Association
Picture a wobbly, broken bridge with a 'Caution: Unreliable' sign. Every time you think of 'unreliable,' visualize that unstable bridge, unable to be trusted for safe passage.
Word Web
Challenge
Describe three scenarios where something or someone could be considered 'unreliable.' For example, 'My old car is unreliable because it often breaks down.' Or, 'The weather forecast was unreliable today; it said sun, but it rained.'
Test Yourself 78 questions
The old car is often broken, it is ___.
An unreliable car often breaks down.
My internet is very ___, so I cannot watch videos.
If the internet is unreliable, it doesn't work consistently.
He is sometimes late for work, so he can be ___.
Someone who is unreliable might be late or not do what they say they will do.
The weather forecast was ___; it said sun, but it rained.
An unreliable forecast gives wrong information.
This old clock is ___; it often stops working.
An unreliable clock doesn't keep time correctly.
Don't trust that printer; it's very ___ and often jams.
An unreliable printer frequently has problems like jamming.
Write a short sentence about something that is unreliable.
Well written! Good try! Check the sample answer below.
Sample answer
My old car is unreliable because it often breaks down.
Imagine your friend is unreliable. Write one sentence about what they do.
Well written! Good try! Check the sample answer below.
Sample answer
My friend is unreliable; he is always late for our meetings.
Complete the sentence: A broken clock is __________.
Well written! Good try! Check the sample answer below.
Sample answer
A broken clock is unreliable.
Why was the student late for school?
Read this passage:
My alarm clock did not ring this morning. I was late for school. This alarm clock is not good. It is unreliable.
Why was the student late for school?
The passage says, 'My alarm clock did not ring this morning. I was late for school. This alarm clock is not good. It is unreliable.'
The passage says, 'My alarm clock did not ring this morning. I was late for school. This alarm clock is not good. It is unreliable.'
What is unreliable?
Read this passage:
My internet connection is very slow. Sometimes it stops working. I cannot watch videos or do my homework. It is unreliable.
What is unreliable?
The passage states, 'My internet connection is very slow. Sometimes it stops working. ... It is unreliable.'
The passage states, 'My internet connection is very slow. Sometimes it stops working. ... It is unreliable.'
Why does Maria need a new car?
Read this passage:
Maria's car is old. It often does not start in the morning. She needs a new car because her old one is unreliable.
Why does Maria need a new car?
The passage says, 'She needs a new car because her old one is unreliable.'
The passage says, 'She needs a new car because her old one is unreliable.'
This sentence describes a car that often breaks down or doesn't work when needed.
This sentence means the friend cannot be depended on.
This sentence suggests the weather is changing unexpectedly and cannot be predicted.
Think about something that doesn't work well.
Consider someone who doesn't keep their promises.
What happens when a prediction is wrong?
Read this aloud:
The internet connection is unreliable today.
Focus: unreliable
You said:
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Read this aloud:
She said the train schedule is unreliable.
Focus: schedule
You said:
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Read this aloud:
Don't rely on unreliable information.
Focus: information
You said:
Speech recognition is not supported in your browser. Try Chrome or Edge.
This sentence describes a car that often breaks down or doesn't work when needed.
This sentence means that the friend cannot always be trusted or depended on.
This sentence shows that the bus is not dependable because it's frequently late.
The old car was very ___ so she decided to buy a new one.
The sentence indicates a problem with the car's performance, making 'unreliable' the best fit.
He's an ___ person; he often forgets appointments and rarely finishes tasks on time.
Forgetting appointments and not finishing tasks on time are characteristics of an unreliable person.
The internet connection in this area is very ___, which makes it difficult to work from home.
A connection that is difficult to work with is likely not stable or dependable, hence 'unreliable'.
Don't depend on him for help, he's quite ___ and might not show up.
If someone might not show up when expected, they are unreliable.
The weather forecast was completely ___; it said it would be sunny, but it rained all day.
A forecast that is wrong is not trustworthy, meaning it is unreliable.
Her old laptop was so ___ that it crashed several times a day.
A laptop that crashes often is not performing consistently or accurately, indicating it is unreliable.
Describe a situation where someone or something proved to be unreliable. What happened and what was the consequence?
Well written! Good try! Check the sample answer below.
Sample answer
My old car was quite unreliable. It would often break down in the middle of a journey, which caused me to be late for important appointments. One time, I missed an important job interview because the car wouldn't start. It was very frustrating and I ended up buying a new car.
Imagine you are writing an email to a friend about a new product you bought that turned out to be unreliable. Explain why it was unreliable and how you felt about it.
Well written! Good try! Check the sample answer below.
Sample answer
Hey [Friend's Name], I just wanted to tell you about this new smartphone I bought. It's so unreliable! The battery dies really quickly, and sometimes it just switches off by itself. I'm so disappointed because I paid a lot for it. I think I'm going to try and return it. Talk soon, [Your Name]
Write a short paragraph about why it's important to have reliable friends. What qualities make a friend reliable?
Well written! Good try! Check the sample answer below.
Sample answer
Having reliable friends is very important because you know you can always count on them. A reliable friend is someone who keeps their promises, is always there for you when you need help, and tells you the truth. You can trust them with your secrets and know they will support you, no matter what.
What was the main problem Sarah faced?
Read this passage:
Sarah was excited for her vacation, but her flight was delayed for hours. The airline had a reputation for being unreliable, and this experience only confirmed it. Many passengers were upset, and some missed their connecting flights. Sarah decided she would choose a different airline next time.
What was the main problem Sarah faced?
The passage states, 'The airline had a reputation for being unreliable, and this experience only confirmed it.' The delay was a result of this unreliability.
The passage states, 'The airline had a reputation for being unreliable, and this experience only confirmed it.' The delay was a result of this unreliability.
What was the consequence of Tom's unreliable internet connection?
Read this passage:
Tom's internet connection was very unreliable. It would often cut out in the middle of his online classes, which made it difficult for him to follow the lessons. He tried restarting his router multiple times, but the problem persisted. He knew he needed to call his internet provider.
What was the consequence of Tom's unreliable internet connection?
The passage says, 'It would often cut out in the middle of his online classes, which made it difficult for him to follow the lessons.'
The passage says, 'It would often cut out in the middle of his online classes, which made it difficult for him to follow the lessons.'
According to the passage, what is a benefit of a reliable car?
Read this passage:
When choosing a car, it's important to consider its reliability. An unreliable car can lead to unexpected breakdowns and expensive repairs. Always check reviews and ask for maintenance history before making a purchase. Investing in a reliable vehicle will save you stress and money in the long run.
According to the passage, what is a benefit of a reliable car?
The passage states, 'Investing in a reliable vehicle will save you stress and money in the long run.'
The passage states, 'Investing in a reliable vehicle will save you stress and money in the long run.'
Imagine you are writing a review for a new restaurant. Describe a situation where the service or food could be considered 'unreliable'. What impact did this unreliability have on your experience?
Well written! Good try! Check the sample answer below.
Sample answer
During my recent visit to 'The Gilded Spoon', I found the service to be quite unreliable. Our drinks order was forgotten twice, and one of the main courses arrived cold, necessitating a return to the kitchen. This inconsistency really marred what could have been a pleasant evening, and it certainly didn't meet the high expectations we had for a restaurant of this caliber.
You are explaining to a friend why you can't rely on your old car anymore. Use the word 'unreliable' and provide specific examples of its unreliability.
Well written! Good try! Check the sample answer below.
Sample answer
My old car has become incredibly unreliable, to be honest. Just last week, it wouldn't start on a cold morning, making me late for work. Before that, the engine light kept coming on for no apparent reason, and it frequently stalls in traffic. I just can't trust it for my daily commute anymore; it feels like it could break down at any moment.
Write a short paragraph about a time when you realized a piece of technology was 'unreliable'. How did it affect your plans or tasks?
Well written! Good try! Check the sample answer below.
Sample answer
I recently had a very frustrating experience with my old laptop, which proved to be quite unreliable. I was working on an important presentation with a tight deadline when it suddenly crashed, and I lost several hours of unsaved work. This unreliability forced me to start almost from scratch, causing significant delays and a lot of stress. I definitely can't depend on it for critical tasks anymore.
What was the main problem with Mark's work?
Read this passage:
Sarah was a meticulous planner, but her assistant, Mark, was notoriously unreliable. He often arrived late, missed deadlines, and frequently forgot important details. Sarah tried to be patient, but his consistent lack of dependability started to affect their team's productivity and reputation. Eventually, she realized that she couldn't count on him for crucial tasks, leading to difficult conversations about his performance.
What was the main problem with Mark's work?
The passage states that Mark 'often arrived late, missed deadlines, and frequently forgot important details,' which are all examples of his unreliability.
The passage states that Mark 'often arrived late, missed deadlines, and frequently forgot important details,' which are all examples of his unreliability.
Why was it difficult to plan outdoor activities?
Read this passage:
The weather forecast for the weekend was highly unreliable. One day, it predicted clear skies and sunshine, but the next, it warned of heavy rain and thunderstorms. This inconsistency made it difficult for people to plan outdoor activities, as they couldn't trust the predictions to be accurate. Many decided to make last-minute decisions based on the actual weather, rather than the ever-changing forecast.
Why was it difficult to plan outdoor activities?
The passage explains that the forecast was 'highly unreliable' and 'inconsistency made it difficult for people to plan' because they 'couldn't trust the predictions to be accurate'.
The passage explains that the forecast was 'highly unreliable' and 'inconsistency made it difficult for people to plan' because they 'couldn't trust the predictions to be accurate'.
What is a major problem with older public transportation systems?
Read this passage:
A common issue with older public transportation systems is their unreliability. Trains and buses can be subject to frequent delays, unexpected cancellations, or breakdowns. This can cause significant inconvenience for commuters who depend on these services to get to work or school on time. Modernization efforts often focus on improving the reliability of schedules and equipment to address these problems.
What is a major problem with older public transportation systems?
The passage explicitly states that 'a common issue with older public transportation systems is their unreliability' and lists 'frequent delays, unexpected cancellations, or breakdowns' as examples.
The passage explicitly states that 'a common issue with older public transportation systems is their unreliability' and lists 'frequent delays, unexpected cancellations, or breakdowns' as examples.
The company's antiquated machinery proved to be ______ when faced with increased production demands, leading to frequent breakdowns and delays.
The context of 'frequent breakdowns and delays' clearly indicates a lack of dependability, making 'unreliable' the most suitable choice.
Despite his charismatic demeanor, the politician's track record of unfulfilled promises rendered him ______ in the eyes of many voters.
A politician who doesn't fulfill promises cannot be trusted or depended upon, thus he is 'unreliable'.
The experimental drug, while promising in initial trials, showed ______ results in larger studies, raising concerns about its overall efficacy and safety profile.
When results are not consistent and raise concerns, they are considered 'unreliable'.
A system that consistently performs well and rarely experiences glitches can be described as unreliable.
A system that consistently performs well is by definition reliable, not unreliable. Unreliable means not able to be trusted or depended upon.
If a weather forecast is frequently inaccurate and fails to predict significant atmospheric shifts, it is considered unreliable.
An inaccurate and failing forecast is indeed not dependable and therefore unreliable.
A person who always meets deadlines and delivers high-quality work is an example of an unreliable employee.
An employee who consistently meets deadlines and delivers high-quality work is dependable and trustworthy, which is the opposite of unreliable.
Focus on the context of the machinery's performance.
Consider why the research findings lacked credibility.
Think about the consequences of his inconsistent attendance.
Read this aloud:
Can you elaborate on a situation where you encountered an unreliable system or individual and how you addressed it?
Focus: elaborate, encountered, addressed
You said:
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Discuss the ethical implications of presenting unreliable data in a professional setting.
Focus: ethical, implications, presenting
You said:
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How can one proactively identify and mitigate the risks associated with unreliable information sources in academic research?
Focus: proactively, mitigate, associated
You said:
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The incessant flickering of the antique projector rendered it utterly ___ for showcasing the documentary.
The context implies that the projector's flickering made it unsuitable for its purpose, aligning with the meaning of 'unreliable'.
Despite numerous attempts to recalibrate the antiquated machinery, its output remained notoriously ___, jeopardizing the entire production schedule.
The phrase 'notoriously unreliable' perfectly captures the unpredictable and inconsistent nature of the machinery's output, which is causing problems for production.
Her testimony was ultimately deemed ___ due to glaring inconsistencies and a history of fabricating details, undermining the prosecution's case.
The presence of 'glaring inconsistencies' and 'fabricating details' directly indicates that her testimony could not be trusted, making it unreliable.
A person who is meticulous and always meets deadlines can be described as unreliable.
A person who is meticulous and always meets deadlines is the opposite of unreliable; they are dependable and trustworthy.
If a weather forecast consistently gives inaccurate predictions, it can be characterized as unreliable.
If a weather forecast consistently gives inaccurate predictions, it cannot be trusted or depended upon, thus making it unreliable.
A robust and well-maintained computer system is by definition unreliable.
A robust and well-maintained computer system is generally reliable, not unreliable, as it is expected to perform consistently and accurately.
Focus on the context of 'unreliable' in relation to machinery.
Consider the impact of 'unreliable' promises.
Listen for why the data was 'unreliable'.
Read this aloud:
Elaborate on how the inherent unreliability of certain global financial indicators complicates the formulation of robust economic policies.
Focus: unreliability, complicates, formulation, robust
You said:
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Discuss the ethical implications of relying on unreliable sources in journalistic reporting, particularly concerning sensitive geopolitical events.
Focus: ethical, implications, journalistic, geopolitical
You said:
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Read this aloud:
Analyze the psychological impact of working with unreliable colleagues on team morale and overall productivity within a high-pressure corporate environment.
Focus: psychological, impact, colleagues, corporate, environment
You said:
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This sentence structure logically connects her past reputation with her current unreliable behavior and the resulting concerns.
The order establishes the cause (unreliable supply chain) and its ultimate effects (delays and dissatisfaction).
This arrangement clearly states why the historical account was deemed unreliable, attributing it to bias and lack of evidence.
/ 78 correct
Perfect score!
Contextual Learning
Learn unreliable within sentences. For example: 'The old car was unreliable, breaking down often.'
Antonyms
Understand its opposite. The antonyms for unreliable are 'reliable', 'trustworthy', or 'dependable'.
Synonyms
Explore words with similar meanings. Synonyms include 'inconsistent', 'erratic', or 'untrustworthy' when describing unreliable.
Sentence Construction
Create your own sentences using unreliable to solidify your understanding. For example: 'His promises were often unreliable.'
