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intelligent

B1 adjective #5 most common 9 min read

intelligent

Top 5

Practice it Examples Notes & Tips intelligent in 30 Seconds

Explanation intelligent in your Level:

At the A1 level, 'intelligent' is a word you use to say someone is very smart. It is like the word 'smart' but a little more formal. You can use it to talk about your friends, your teacher, or a clever dog. For example: 'My brother is very intelligent.' It is an easy way to give a nice compliment to someone who learns things quickly.

At the A2 level, you can use 'intelligent' to describe people and animals. You understand that it means someone can think well and learn easily. You might start using it with simple adverbs like 'very' or 'really'. You also begin to see it in stories about animals, like 'The dolphin is an intelligent animal.' It helps you describe character traits more accurately than just using 'good' or 'nice'.

At the B1 level, you use 'intelligent' in more varied contexts, such as 'intelligent decisions' or 'intelligent systems'. You understand the difference between being 'intelligent' (having a good brain) and being 'educated' (having gone to school). You can use it to discuss topics like technology or nature. You are also comfortable using the comparative 'more intelligent' and the superlative 'the most intelligent'.

At the B2 level, you recognize the nuances of 'intelligent' compared to synonyms like 'astute', 'bright', or 'clever'. You can use it in formal essays and discussions about 'Artificial Intelligence' or 'Emotional Intelligence'. You understand that 'intelligent' implies a logical and analytical way of thinking. You can also use the adverb 'intelligently' to describe how someone acts or speaks in a professional setting.

At the C1 level, you use 'intelligent' with precision, often modifying it with sophisticated adverbs like 'remarkably', 'exceptionally', or 'inherently'. You can discuss the philosophical implications of 'intelligent life' or 'intelligent design'. You are aware of the word's etymology and how it fits into academic discourse. You can distinguish between 'intelligent' and 'intellectual' and use each correctly in complex social or academic analyses.

At the C2 level, 'intelligent' is a versatile tool in your vocabulary. You use it to critique complex theories, describe intricate systems, and navigate high-level professional environments. You understand its subtle connotations in different registers—from the clinical 'intelligent quotient' to the poetic 'intelligent gaze'. You can use the word to construct persuasive arguments, showing a mastery of its various shades of meaning and its place within the broader English lexicon.

Practice it Examples Notes & Tips

intelligent in 30 Seconds

Intelligent describes a high mental capacity for learning and reasoning.
It is used for people, animals, and advanced technology like AI.
The word is more formal than 'smart' and implies innate ability.
Commonly paired with adverbs like 'highly' or 'remarkably' for emphasis.

The word intelligent is a foundational adjective in the English language used to describe a high level of mental capacity. At its core, it refers to the ability to acquire and apply knowledge, reason through complex problems, and understand abstract concepts. Unlike 'smart,' which often carries a connotation of practical or social savvy, 'intelligent' frequently leans toward a more formal or innate cognitive ability. It is used to describe humans, animals with advanced problem-solving skills (like dolphins or crows), and increasingly, computer systems designed to mimic human thought processes.

Cognitive Capacity: This refers to the biological or structural ability of a brain or processor to handle information. When we say a student is intelligent, we are often commenting on their potential to learn quickly and deeply.

The scientist provided an intelligent solution to the climate crisis that balanced economic needs with environmental preservation.

In modern discourse, the term has expanded significantly through the concept of 'Artificial Intelligence' (AI). Here, 'intelligent' doesn't imply consciousness but rather the efficiency and logic of data processing. We also use it in social contexts, such as 'Emotional Intelligence' (EQ), which describes the ability to perceive, control, and evaluate emotions. This broadening of the term shows that being 'intelligent' is no longer just about IQ scores or academic success; it encompasses a wide range of mental and social proficiencies.

Analytical Prowess: The ability to break down a complex whole into its component parts to understand how they work together. An intelligent analysis is one that misses no crucial details.

Furthermore, the word is often applied to choices and behaviors. An 'intelligent decision' is one made after careful consideration of the facts and potential outcomes. It suggests a level of wisdom and foresight. In biological terms, we look for 'intelligent life' in the universe, meaning life forms capable of technology or complex communication. This usage highlights the word's connection to the very essence of what makes a species advanced.

It was an intelligent move to invest in renewable energy before the market peaked.

Adaptability: True intelligence is often measured by how well an organism or system can adapt to new and changing environments. This is a core component of biological intelligence.

The border collie is widely considered one of the most intelligent dog breeds due to its working ability.

She gave a very intelligent answer to a very difficult question during the interview.

Using 'intelligent' correctly involves understanding its placement as an adjective and the adverbs that typically modify it. It can be used attributively (before a noun) or predicatively (after a linking verb). For example, 'an intelligent woman' (attributive) and 'the woman is intelligent' (predicative). Because intelligence is a gradable quality, we often use intensifiers like 'highly,' 'extremely,' or 'remarkably' to specify the degree of ability.

Modifying with Adverbs: Common pairings include 'highly intelligent,' 'frighteningly intelligent,' and 'seemingly intelligent.' These add nuance to the description.

The software uses a highly intelligent algorithm to predict consumer behavior.

When describing actions or decisions, 'intelligent' serves to validate the logic behind them. You might say, 'That was an intelligent choice,' which implies the person thought through the consequences. In comparative forms, we use 'more intelligent' and 'most intelligent.' Unlike shorter adjectives (e.g., 'smarter'), 'intelligent' always requires 'more' or 'most' rather than an '-er' or '-est' suffix.

Comparative Structures: Use 'more intelligent than' when comparing two entities. Example: 'Humans are generally more intelligent than other primates in terms of abstract reasoning.'

In academic and professional writing, 'intelligent' is preferred over 'smart' because it sounds more objective. It is often used in the context of 'intelligent design' (a specific philosophical/theological concept) or 'intelligent systems' (engineering). When describing a person's character, it can be paired with other positive traits, such as 'intelligent and hardworking' or 'intelligent yet humble.'

Is there intelligent life elsewhere in the galaxy, or are we alone?

Negative Constructions: Using 'not very intelligent' is a polite way to say someone is unintelligent or slow to understand. It is a common euphemism.

The critic praised the film for its intelligent script and nuanced performances.

She is far too intelligent to fall for such a transparent scam.

You will encounter 'intelligent' in a variety of high-stakes environments. In the tech industry, it is ubiquitous. From 'intelligent assistants' like Siri and Alexa to 'intelligent manufacturing' in factories, the word signifies a move toward automation and data-driven logic. News reports on technology and science are the most common places to hear the word used in a non-human context.

The Tech World: In Silicon Valley, 'intelligent' is a marketing buzzword used to describe any product that uses machine learning or predictive algorithms.

The new 'smart home' devices are becoming more intelligent with every software update.

In education and psychology, 'intelligent' is used to discuss human potential. Teachers might discuss a student's 'intelligent engagement' with a text, or psychologists might debate the validity of 'intelligent testing' (IQ tests). It also appears in legal and political discussions, particularly regarding 'intelligent policy' or 'intelligent defense.' Here, it implies a strategy that is well-thought-out and based on sound evidence rather than emotion.

Academic Discourse: Professors use the word to describe students who show a deep understanding of theory, often contrasting them with those who simply memorize facts.

Pop culture also utilizes the word, often in science fiction. Whether it's the 'intelligent machines' of the Matrix or the 'intelligent aliens' in Arrival, the word is used to explore the boundaries of what it means to think and exist. In daily conversation, it is a high compliment. Telling someone they are 'intelligent' is often seen as more profound than telling them they are 'smart,' as it suggests a deeper, more permanent quality of mind.

The documentary asks whether we would even recognize intelligent life if it didn't look like us.

Media and Journalism: Journalists use 'intelligent' to describe complex political strategies or well-reasoned arguments in opinion pieces.

He is an intelligent observer of human nature, which makes his novels very relatable.

The debate was an intelligent exchange of ideas rather than a shouting match.

One of the most frequent errors is confusing 'intelligent' with 'intellectual.' While they are related, they are not interchangeable. An 'intelligent' person has a high capacity for thought, while an 'intellectual' person is someone who enjoys and spends time on academic or creative pursuits. You can be intelligent without being an intellectual (e.g., a brilliant mechanic), and you can be an intellectual without being exceptionally intelligent (though it is less common).

Intelligent vs. Intellectual: 'Intelligent' is about capacity; 'Intellectual' is about interest and lifestyle. Don't say 'He is very intellectual' when you just mean he is smart.

Correct: She is an intelligent child. Incorrect: She is an intellectual child (unless she reads philosophy for fun).

Another mistake involves the preposition that follows the word. Learners often try to use 'intelligent in' or 'intelligent at,' but 'intelligent' is usually used with 'about' or simply followed by a noun. For example, 'He is intelligent about financial matters' is correct, but 'He is intelligent at math' is better phrased as 'He is good at math' or 'He is an intelligent mathematician.'

Preposition Pitfalls: Avoid 'intelligent at'. Instead, use 'intelligent regarding' or simply describe the person's intelligence in a specific field using a noun.

Finally, there is the issue of 'intelligent' vs. 'clever.' In some cultures, 'clever' can have a negative connotation, implying someone is tricky or manipulative (like a 'clever fox'). 'Intelligent' is almost always positive and refers to genuine mental power. Using 'intelligent' ensures you are praising someone's mind without accidentally suggesting they are being dishonest.

He was intelligent enough to see through the lie, but too polite to say anything.

Misusing 'Intelligent' for 'Intelligible': 'Intelligible' means 'able to be understood' (like clear speech). 'Intelligent' means 'having a good mind'. They are often confused by learners.

The radio signal was barely intelligible (not intelligent) due to the static.

Don't confuse 'intelligent' with 'educated'. An intelligent person might not have gone to school.

While 'intelligent' is a great all-purpose word, English offers many synonyms that provide more specific meaning. 'Bright' is a common, slightly more informal alternative often used for children or young people. 'Brilliant' suggests a level of intelligence that is dazzling or exceptional. If you want to describe someone who is practically smart, 'astute' or 'shrewd' are excellent choices, especially in business or politics.

Intelligent vs. Astute: 'Intelligent' is general mental power. 'Astute' implies the ability to accurately assess situations or people and turn this to one's advantage.

She is an astute businesswoman who never misses an opportunity.

For academic contexts, 'scholarly' or 'erudite' might be better if the person has a lot of knowledge from books. 'Sharp' and 'quick-witted' describe someone who thinks very fast. On the more technical side, 'rational' or 'logical' describe the *way* someone thinks rather than just their capacity. Using these alternatives can make your writing more precise and engaging.

Intelligent vs. Erudite: 'Intelligent' is innate ability. 'Erudite' means having or showing great knowledge or learning. You can be intelligent but not erudite if you haven't studied much.

In contrast, if you want to describe someone who is smart in a sneaky way, 'cunning' or 'wily' are the words to use. These carry a negative moral weight that 'intelligent' lacks. 'Brainy' is a very informal, slightly slangy term that is often used in a friendly or teasing way among peers. Choosing the right synonym depends entirely on the 'register' (formal vs. informal) and the specific 'flavor' of smartness you want to convey.

The professor's erudite lecture on ancient Greek pottery left the students in awe.

Intelligent vs. Sharp: 'Sharp' often refers to a quickness of mind and an ability to notice things that others might miss.

He's a sharp kid; he'll figure out the puzzle in no time.

Her quick-witted response saved the company from a PR disaster.

How Formal Is It?

Formal

Neutral

Informal

Child friendly

Slang

Fun Fact

The root 'inter-' means 'between' and 'legere' means 'to choose' or 'to read'. So, an intelligent person is literally someone who can 'choose between' different options or 'read between' the lines.

Pronunciation Guide

UK /ɪnˈtel.ɪ.dʒənt/

US /ɪnˈtel.ə.dʒənt/

Second syllable: in-TEL-li-gent

Rhymes With

Elegant Relevant Negligent Diligent Indulgent Effulgent Exigent Belligerent

Common Errors

Stressing the first syllable (IN-telligent).
Pronouncing the 'g' like a hard 'g' (as in 'game') instead of a soft 'j' sound.
Adding an extra syllable (in-tel-li-gent-ly).
Confusing the ending with '-ance' (intelligence).
Mispronouncing the 'e' in the second syllable as an 'a'.

Difficulty Rating

Reading 3/5

Commonly found in news and books, but easy to recognize.

Writing 4/5

Requires correct spelling and understanding of formal register.

Speaking 3/5

Easy to use in conversation as a compliment.

Listening 2/5

Clear pronunciation and distinct syllables make it easy to hear.

What to Learn Next

Prerequisites

Smart Think Learn Brain Good

Learn Next

Intellectual Analytical Cognitive Rational Astute

Advanced

Perspicacious Sagacious Erudite Discerning Sapient

Grammar to Know

Adjective Comparison

Intelligent -> More intelligent -> Most intelligent.

Adverb Formation

Intelligent + -ly = Intelligently.

Noun Formation

Intelligent -> Intelligence (removing -ent and adding -ence).

Attributive vs Predicative

The intelligent man (Attributive) vs The man is intelligent (Predicative).

Negative Prefix

Un- + intelligent = Unintelligent.

Examples by Level

He is a very intelligent boy.

Il est un garçon très intelligent.

Adjective comes before the noun.

Is your dog intelligent?

Votre chien est-il intelligent ?

Question form with 'is'.

She is intelligent and kind.

Elle est intelligente et gentille.

Using 'and' to join two adjectives.

The teacher is very intelligent.

Le professeur est très intelligent.

Predicative use of the adjective.

I want to be intelligent.

Je veux être intelligent.

Used after the infinitive 'to be'.

They are intelligent students.

Ce sont des étudiants intelligents.

Plural noun following the adjective.

This is an intelligent book.

C'est un livre intelligent.

Using 'an' before a word starting with a vowel sound.

My friend is not very intelligent.

Mon ami n'est pas très intelligent.

Negative construction with 'not'.

Dolphins are very intelligent animals.

Les dauphins sont des animaux très intelligents.

Generalizing about a species.

She gave an intelligent answer to the question.

Elle a donné une réponse intelligente à la question.

Adjective modifying the noun 'answer'.

It is important to make intelligent choices.

Il est important de faire des choix intelligents.

Using 'it is' + adjective + 'to' + verb.

He is more intelligent than his brother.

Il est plus intelligent que son frère.

Comparative form using 'more'.

Are computers really intelligent?

Les ordinateurs sont-ils vraiment intelligents ?

Adverb 'really' modifying the adjective.

The robot is very intelligent.

Le robot est très intelligent.

Describing a machine.

She is the most intelligent person I know.

Elle est la personne la plus intelligente que je connaisse.

Superlative form using 'the most'.

He looks very intelligent with those glasses.

Il a l'air très intelligent avec ces lunettes.

Using 'looks' as a linking verb.

We need an intelligent solution to this problem.

Nous avons besoin d'une solution intelligente à ce problème.

Focusing on the quality of a solution.

The movie was praised for its intelligent script.

Le film a été loué pour son scénario intelligent.

Describing creative work.

She is highly intelligent but lacks experience.

Elle est très intelligente mais manque d'expérience.

Using 'highly' as an intensifier.

Is there intelligent life on other planets?

Y a-t-il une vie intelligente sur d'autres planètes ?

Common phrase in science and space discussion.

He handled the situation in an intelligent way.

Il a géré la situation de manière intelligente.

Prepositional phrase 'in an ... way'.

Modern cars have intelligent safety features.

Les voitures modernes ont des fonctions de sécurité intelligentes.

Describing technology.

She is an intelligent observer of politics.

Elle est une observatrice intelligente de la politique.

Describing a person's role or habit.

The software is designed to be intelligent.

Le logiciel est conçu pour être intelligent.

Passive voice 'is designed to be'.

The CEO made an intelligent decision to diversify the company.

Le PDG a pris la décision intelligente de diversifier l'entreprise.

Using 'intelligent' in a professional context.

Emotional intelligence is just as important as IQ.

L'intelligence émotionnelle est tout aussi importante que le QI.

Compound noun 'emotional intelligence'.

The article provides an intelligent analysis of the economic crisis.

L'article propose une analyse intelligente de la crise économique.

Describing an analytical piece of writing.

He is remarkably intelligent for his age.

Il est remarquablement intelligent pour son âge.

Using 'remarkably' for emphasis.

The system uses artificial intelligence to filter spam.

Le système utilise l'intelligence artificielle pour filtrer les spams.

Reference to AI.

She is an intelligent and articulate speaker.

C'est une oratrice intelligente et éloquente.

Pairing with another high-level adjective.

The plan was both intelligent and practical.

Le plan était à la fois intelligent et pratique.

Using 'both ... and' for balanced description.

It was an intelligent move to wait for more data.

C'était une décision intelligente d'attendre plus de données.

Describing a strategic action.

The author offers an intelligent critique of modern consumerism.

L'auteur propose une critique intelligente du consumérisme moderne.

Academic/Literary context.

Her argument was structured in an exceptionally intelligent manner.

Son argument était structuré de manière exceptionnellement intelligente.

Adverbial phrase with 'exceptionally'.

The search for extraterrestrial intelligent life continues.

La recherche d'une vie intelligente extraterrestre se poursuit.

Specific scientific terminology.

He is an inherently intelligent individual who needs little guidance.

C'est un individu intrinsèquement intelligent qui a besoin de peu de conseils.

Using 'inherently' to describe a deep trait.

The film explores the ethics of creating intelligent machines.

Le film explore l'éthique de la création de machines intelligentes.

Abstract and philosophical context.

She provided an intelligent synthesis of the conflicting reports.

Elle a fourni une synthèse intelligente des rapports contradictoires.

Describing a complex cognitive task.

The design of the building is both aesthetically pleasing and intelligent.

La conception du bâtiment est à la fois esthétique et intelligente.

Describing functional design.

His intelligent use of metaphor made the poem very powerful.

Son utilisation intelligente de la métaphore a rendu le poème très puissant.

Describing artistic skill.

The diplomat's intelligent maneuvering avoided a potential conflict.

Les manœuvres intelligentes du diplomate ont permis d'éviter un conflit potentiel.

Describing high-level strategic skill.

The theory is an intelligent attempt to reconcile gravity and quantum mechanics.

La théorie est une tentative intelligente de concilier la gravité et la mécanique quantique.

Scientific/Theoretical context.

She possesses an intelligent curiosity that drives her research.

Elle possède une curiosité intelligente qui motive ses recherches.

Pairing 'intelligent' with an abstract noun.

The software's intelligent architecture allows for seamless scaling.

L'architecture intelligente du logiciel permet une mise à l'échelle transparente.

Technical/Engineering context.

His response was an intelligent blend of humor and serious analysis.

Sa réponse était un mélange intelligent d'humour et d'analyse sérieuse.

Describing a sophisticated communication style.

The judge praised the lawyer's intelligent application of the law.

Le juge a loué l'application intelligente de la loi par l'avocat.

Legal context.

The novel is an intelligent exploration of the human condition.

Le roman est une exploration intelligente de la condition humaine.

Literary/Philosophical context.

We must foster an intelligent dialogue between the two communities.

Nous devons favoriser un dialogue intelligent entre les deux communautés.

Social/Political context.

Common Collocations

highly intelligent

intelligent life

intelligent design

intelligent decision

emotional intelligence

artificial intelligence

intelligent question

intelligent system

intelligent person

seemingly intelligent

Common Phrases

An intelligent guess

— A guess based on some knowledge or logic rather than just luck.

I don't know the answer, but I can make an intelligent guess.

Intelligent conversation

— A conversation that is interesting and involves deep thinking.

I missed having an intelligent conversation with her.

Intelligent choice

— A choice that is sensible and well-thought-out.

Buying a smaller car was an intelligent choice.

Intelligent response

— A reply that shows the person has understood and thought about the topic.

The student gave an intelligent response to the teacher's question.

Intelligent being

— A creature that is capable of complex thought.

Humans are considered the most intelligent beings on Earth.

Intelligent behavior

— Actions that show logic and planning.

The animal showed intelligent behavior by using a tool.

Intelligent approach

— A way of doing something that is logical and effective.

We need an intelligent approach to solving the budget crisis.

Intelligent look

— An appearance that suggests someone is smart.

He has an intelligent look in his eyes.

Intelligent software

— Programs that can perform tasks that usually require human intelligence.

This intelligent software can translate languages instantly.

Intelligent investment

— Putting money into something that is likely to be successful.

Real estate is often seen as an intelligent investment.

Often Confused With

intelligent vs Intellectual

Intellectual refers to someone who likes books and ideas; intelligent refers to mental ability.

intelligent vs Intelligible

Intelligible means 'able to be understood' (like clear speech).

intelligent vs Smart

Smart is more informal and often refers to practical or social ability.

Idioms & Expressions

"As intelligent as they come"

— Extremely intelligent; as smart as anyone could possibly be.

She's a brilliant doctor, as intelligent as they come.

Informal

"An intelligent mind"

— Refers to a person's overall capacity for thought and reason.

He has one of the most intelligent minds of our generation.

Formal

"Intelligent beyond one's years"

— Much smarter than most people of the same age.

The young girl was intelligent beyond her years.

Neutral

"A man/woman of intelligent parts"

— An old-fashioned way to say someone has many talents and a good mind.

He was known as a man of intelligent parts in the local community.

Literary

"The intelligent choice"

— The most logical or sensible option available.

For many, the hybrid car is the intelligent choice.

Neutral

"Intelligent enough to know better"

— Used to criticize someone who did something foolish despite being smart.

You're intelligent enough to know better than to drive in this storm.

Neutral

"An intelligent observer"

— Someone who notices and understands the deeper meaning of events.

To any intelligent observer, the plan was clearly failing.

Formal

"Intelligent by design"

— Something that is smart because it was carefully planned that way.

The city's layout is intelligent by design, reducing traffic flow.

Neutral

"The intelligent thing to do"

— The most sensible action in a given situation.

The intelligent thing to do would be to apologize.

Neutral

"Not the most intelligent..."

— A polite or sarcastic way to say someone is stupid.

That wasn't the most intelligent thing you've ever done.

Informal/Sarcastic

Easily Confused

intelligent vs Intellectual

They both come from the same root 'intellect'.

Intelligent is an adjective for capacity. Intellectual is often a noun or adjective for someone who values academic pursuits. An intelligent person might not be an intellectual if they don't care about books.

He is an intelligent mechanic, but he is not an intellectual.

intelligent vs Intelligible

They look and sound very similar.

Intelligible means something can be understood or is clear. Intelligent means someone is smart. You can have an intelligent person whose speech is not intelligible because they have a heavy accent.

His handwriting was barely intelligible.

intelligent vs Clever

Both mean smart.

Clever can sometimes imply being tricky or dishonest, or it can mean being good with one's hands. Intelligent is more about pure brainpower and logic.

The fox was clever enough to escape the trap.

intelligent vs Bright

Both are positive adjectives for smartness.

Bright is usually used for younger people and implies potential. Intelligent is more clinical and can be used for any age or even machines.

She's a bright young girl with a lot of potential.

intelligent vs Wise

Both are positive mental traits.

Wise implies intelligence plus experience and good judgment. You can be intelligent but young and unwise.

The wise old man knew exactly what to say.

Sentence Patterns

Subject + is + (very) + intelligent.

My dog is very intelligent.

Subject + is + more intelligent + than + noun.

She is more intelligent than her classmates.

It was + intelligent + of + person + to + verb.

It was intelligent of him to save his money.

Noun + shows + intelligent + behavior/response.

The monkey shows intelligent behavior.

Adverb + intelligent + noun.

A remarkably intelligent analysis.

Subject + possesses + an + intelligent + abstract noun.

He possesses an intelligent curiosity.

To be + intelligent + about + noun.

He is very intelligent about computers.

The + most + intelligent + noun + ever + verb.

The most intelligent person I have ever met.

Word Family

Nouns

Verbs

Adjectives

How to Use It

frequency

High (Top 3000 words in English)

Common Mistakes

He is very intelligenter than me. → He is much more intelligent than me.
Long adjectives like 'intelligent' use 'more' for comparisons, not the '-er' suffix.
She is an intellectual student. → She is an intelligent student.
'Intellectual' refers to an interest in academic study, while 'intelligent' refers to mental ability.
The teacher's voice was not intelligent. → The teacher's voice was not intelligible.
'Intelligible' means 'able to be understood'. 'Intelligent' means 'smart'.
He is intelligent at math. → He is intelligent regarding math / He is good at math.
'Intelligent' is not usually followed by 'at'. Use 'good at' or a different structure.
It was a smart decision. → It was an intelligent decision.
While 'smart' is okay, 'intelligent' is better for describing the logic behind a choice in formal contexts.

Tips

Formal Writing

Always prefer 'intelligent' over 'smart' in academic or professional writing to maintain a serious tone.

Comparatives

Remember to use 'more' and 'most'. Never add '-er' or '-est' to 'intelligent'.

Synonym Choice

Use 'astute' if you want to describe someone who is smart in a business or political way.

Stress

Put the emphasis on the second syllable: in-TEL-li-gent. This is the most common mistake for learners.

Common Pairs

Learn 'highly intelligent' as a single unit; it is one of the most common ways the word is used.

Complimenting

Telling someone they made an 'intelligent point' is a great way to show you are listening and respect them.

AI Context

When talking about technology, 'intelligent' usually means 'automated' or 'data-driven'.

Intelligent vs Intellectual

Don't use 'intellectual' when you just mean someone is smart. Use 'intelligent' for ability.

Double 'L'

Make sure to include the double 'l' in the middle of the word: i-n-t-e-l-l-i-g-e-n-t.

Weak Endings

The 'ent' at the end is often very soft in native speech. Don't expect to hear a strong 'T'.

Memorize It

Mnemonic

Think of 'Intel' (the computer chip company) + 'gent' (gentle/person). An 'Intel-gent' is a person with a powerful chip in their head.

Visual Association

Imagine a glowing lightbulb inside a human brain, representing a bright and active mind.

Word Web

Brain Logic Smart AI Learning Reasoning Problem-solving Capacity

Challenge

Try to use the word 'intelligent' three times today: once to describe a person, once for an animal, and once for a decision.

Word Origin

Derived from the Latin word 'intelligens', which is the present participle of 'intelligere'. This Latin verb means to understand, perceive, or know.

Original meaning: The original Latin meaning was 'to choose between' or 'to discern'.

It belongs to the Italic branch of the Indo-European language family, entering English via Old French in the late 15th century.

Cultural Context

Be careful when discussing intelligence in the context of IQ tests, as this can be a sensitive topic related to social and educational inequality.

In the UK and US, 'intelligent' is a high compliment, but calling yourself intelligent can sometimes be seen as arrogant.

Albert Einstein (often cited as the epitome of an intelligent person). The movie 'A.I. Artificial Intelligence' by Steven Spielberg. The book 'Emotional Intelligence' by Daniel Goleman.

Practice in Real Life

Real-World Contexts

School/Education

An intelligent student
Intelligent participation
Intelligent questions
Highly intelligent

Technology

Artificial intelligence
Intelligent systems
Intelligent software
Intelligent automation

Business

An intelligent investment
Intelligent strategy
Intelligent decision-making
Intelligent leadership

Nature/Science

Intelligent life
Intelligent species
Intelligent behavior in animals
Intelligent design

Personal Relationships

Emotional intelligence
An intelligent partner
Intelligent conversation
Intelligent advice

Conversation Starters

"Do you think animals can be as intelligent as humans in some ways?"

"What is the most intelligent decision you have ever made?"

"Do you believe that artificial intelligence will eventually surpass human intelligence?"

"Who is the most intelligent person you have ever met in real life?"

"Is it better to be born intelligent or to work hard to become smart?"

Journal Prompts

Describe a time when you had to make an intelligent choice under pressure. What did you do?

Write about a person you admire for their intelligence. What makes them stand out to you?

Reflect on the concept of emotional intelligence. How can you improve your own EQ?

If you could have a conversation with any intelligent person from history, who would it be and why?

Discuss the pros and cons of living in a world filled with intelligent machines.

Frequently Asked Questions

10 questions

'Intelligent' is more formal and usually refers to innate mental capacity or logical ability. 'Smart' is more informal and can refer to practical knowledge, social skills, or even being well-dressed in British English. For example, you would say 'Artificial Intelligence' but 'a smart phone'.

Yes, it is very common to use 'intelligent' for animals that show high levels of problem-solving or communication, such as dolphins, elephants, and primates. Example: 'Chimpanzees are highly intelligent creatures.'

No, 'intelligenter' is not a word. Because 'intelligent' has four syllables, you must use 'more intelligent' for comparisons. Example: 'She is more intelligent than me,' not 'She is intelligenter than me.'

Emotional intelligence (often called EQ) is the ability to understand and manage your own emotions, as well as recognize and influence the emotions of others. It is considered a key skill in leadership and personal relationships.

In a technical sense, yes. We use the term 'Artificial Intelligence' to describe machines that can perform tasks requiring logic, learning, and decision-making. However, philosophers debate whether this is the same as human intelligence.

The adverb form is 'intelligently'. You simply add '-ly' to the adjective. Example: 'He spoke intelligently about the new project.'

It is a controversial theory that suggests certain features of the universe and living things are best explained by an intelligent cause rather than an undirected process like natural selection.

Yes, it is almost always a high compliment. It suggests that you respect someone's mind and their ability to think clearly and logically.

The most direct opposite is 'unintelligent'. Other opposites include 'stupid', 'foolish', or 'dense', though these can be more insulting.

The noun form is 'intelligence'. It refers to the quality of being intelligent. Example: 'She has a high level of intelligence.'