happy

IPA/ˈhæpi/
KK[hˈæpi]IPA/ˈhæpi/

happy — adjective

  • happypositive
  • happiercomparative
  • happiestsuperlative

1. experiencing a strong feeling of pleasure, contentment, or joy; showing this fee

1.adjectiveA1
Definition

experiencing a strong feeling of pleasure, contentment, or joy; showing this feeling through your expression or behaviour.

Example

The children looked happy when they saw the pile of presents under the tree.

collocation: look happy + reason for happiness

Ayesha felt happy about her new job at the local library.

pattern: feel happy about + noun phrase

Common collocations
  • feel happy
  • look happy
  • seem happy
  • make someone happy
  • happy about
  • happy with
  • perfectly happy
  • genuinely happy
Synonyms
  • glad

    more focused on relief or a specific reason; less intense than 'happy'

  • pleased

    implies satisfaction, especially with a result or someone's behaviour; slightly more formal

  • cheerful

    describes a lasting mood or personality, not a reaction to a specific event

  • content

    a quieter, more settled form of happiness without strong excitement

Antonyms
  • sad

    the most direct opposite; feeling unhappiness or sorrow

  • unhappy

    the direct negation, describing a lack of pleasure or satisfaction

Grammar Patterns

happy + about/with + noun phrase

happy + that-clause

happy + to-infinitive

Usage Note

Common with prepositions 'about' (for specific events) and 'with' (for ongoing situations). 'I am happy with my salary' means satisfaction over time; 'I am happy about the news' means a reaction to a specific event.

Common Mistakes

I am very happy for my new car.
I am very happy with my new car.
Use 'with' (not 'for') to express satisfaction about something you have.
She was happy because she passed the exam.' (correct but wordy)
She was happy to pass the exam.
Use 'happy + to-infinitive' for a more natural alternative to a 'because' clause.

2. used in expressions of good wishes to someone on a special occasion, such as a b

2.adjectiveA1
Definition

used in expressions of good wishes to someone on a special occasion, such as a birthday, holiday, or anniversary.

Example

We all sang and wished Quinn a happy birthday.

fixed phrase: happy birthday

The family gathered at midnight to wish each other a happy New Year.

fixed phrase: happy New Year

Common collocations
  • happy birthday
  • happy New Year
  • happy anniversary
  • happy holidays
  • wish someone a happy

Grammar Patterns

Happy + [occasion]

Usage Note

This sense only appears before a noun naming a special event (birthday, New Year, anniversary, etc.). It is NOT used alone ('I wish you happy') or before everyday nouns ('happy Monday'). In informal writing, 'Happy B-day' is a common short form of 'Happy Birthday'.

Common Mistakes

I wish you a happy.
I wish you a happy birthday.
The word 'happy' in this sense must be followed by the name of the occasion.
Happy Holiday!' (when referring to a single vacation day in the UK)
Happy Holidays!
Use the plural form when referring to a holiday season or multiple days.

3. describing a situation or event that has a good or favourable outcome, especiall

3.adjectiveB2
Definition

describing a situation or event that has a good or favourable outcome, especially one that was not planned or expected.

Example

It was a happy coincidence that Jin and Kian ended up at the same university.

collocation: happy coincidence — an unplanned but welcome event

By a happy chance, the last two tickets were still available when we arrived.

collocation: happy chance — fortunate luck

Common collocations
  • happy accident
  • happy coincidence
  • happy chance
  • by a happy circumstance
Synonyms
  • fortunate

    more formal and suggests a bigger or more important piece of luck

  • lucky

    more common in everyday speech; 'happy' is more literary in this sense

Antonyms
  • unfortunate

    describes a situation with a bad outcome, opposite of a 'happy' coincidence

  • unlucky

    more common and direct than 'unfortunate'

Grammar Patterns

happy + noun (situation, accident, chance, coincidence)

Usage Note

Nearly always used before nouns like 'accident', 'chance', 'coincidence', or 'circumstance'. The word describes the outcome as favourable, not the event itself. It cannot describe a person ('a happy person' = sense 1, not sense 3).

Common Mistakes

He is a happy man to win the lottery.' (ambiguous — sounds like sense 1, just a pleased man)
By a happy chance, he won the lottery.
Use 'happy' directly before the circumstance noun to convey the sense of luck.

❌ 'It was a happy accident that he died.' (contradiction) — 'Happy accident' only works for outcomes the speaker considers genuinely positive.

4. describing a choice of words, remark, or action that fits the situation perfectl

4.adjectiveC1
Definition

describing a choice of words, remark, or action that fits the situation perfectly and creates a good effect.

Example

Élise's choice of words was not a happy one for the serious meeting.

pattern: a happy [choice / expression / remark]

The teacher found a happy way to end the argument between the two groups.

Common collocations
  • a happy choice
  • a happy expression
  • a happy remark
  • a happy way of putting it
  • not a happy moment
Synonyms
  • appropriate

    more common and neutral; 'happy' adds a sense of elegance or cleverness

  • apt

    similar to 'happy' but used mainly for comments or descriptions, not general behaviour

  • felicitous

    very formal and rare; 'happy' is the more accessible alternative

Antonyms
  • unfortunate

    commonly used to describe a poor choice of words, the opposite of a 'happy' expression

  • inappropriate

    broader and more direct; describes anything that does not fit the situation

Grammar Patterns

a happy + [choice/expression/remark/phrasing/medium]

Usage Note

Frequently used in the negative ('not a happy...') to criticise a choice as inappropriate. Mostly found in formal written English or careful speech. Avoid in casual conversation — 'good', 'appropriate', or 'suitable' sound more natural there.

Common Mistakes

That was not a happy dress for the party.
That was not a happy choice of dress for the party.
The word describes the choice itself, not the object directly.

5. pleased and ready to do something that someone asks or expects of you, without n

5.adjectiveB2
Definition

pleased and ready to do something that someone asks or expects of you, without needing persuasion.

Example

Niran was happy to help his elderly neighbour carry the shopping bags upstairs.

pattern: happy + to-infinitive expressing willingness

The staff were happy to work late to finish the order on time.

Common collocations
  • happy to help
  • happy to assist
  • happy to wait
  • happy to answer
  • happy to join
  • happy to explain
Synonyms
  • willing

    more neutral; 'happy' adds warmth and eagerness

  • glad

    very similar, but 'glad to' is slightly more about personal relief while 'happy to' is about willingness

  • eager

    stronger level of enthusiasm; implies wanting to start immediately

Antonyms
  • unwilling

    direct opposite; describes resistance or reluctance

  • reluctant

    suggests hesitation or doing something only because you have to

Grammar Patterns

happy + to-infinitive

Usage Note

This sense is almost always followed by a to-infinitive ('happy to help', 'happy to wait'). It is a polite way to express willingness — more gracious than 'willing to'. Common in customer service and formal offers: 'We would be happy to assist you.'

Common Mistakes

I am happy for helping you.
I am happy to help you.
After 'happy' in this sense, use the to-infinitive, never the -ing form.
I will be happy to come if you want me to come.' (correct but repetitive)
I will be happy to come if needed.
More concise in formal contexts.
Idioms

Happy Birthday

idiom

an expression of good wishes said or written to someone on the day of their birth.

Everyone at the party sang 'Happy Birthday' to Anthony when he blew out the candles.

Happy New Year

idiom

an expression of good wishes for the year ahead, used around the start of the new calendar year.

They stayed up until midnight to call their family and say happy New Year.

(not) a happy camper

idiom

Someone who is not satisfied or pleased with a situation.

When the flight was delayed, Min was not a happy camper.

After losing the game, the coach was definitely not a happy camper.

a happy event

idiom

The occasion when a baby is born.

The family celebrated the happy event with a small party.

Everyone was excited about the happy event of Sara's birth.

the happy/golden mean

idiom

A way of acting that avoids extremes and is balanced.

In diet, the happy mean is eating neither too much nor too little.

Brian tries to follow the golden mean in his work and rest.

a/the happy medium

idiom

A satisfactory choice that is between two opposite or extreme options.

We need to find a happy medium between cost and quality.

Maya struck a happy medium by studying hard but also taking breaks.

many happy returns (of the day)

idiom

An expression used to wish someone a happy birthday.

I sent a card saying "Many happy returns" to my aunt.

At the party, everyone shouted "Many happy returns of the day!" to Diego.

Word family

Synonym discussion

Sense: adjective/1

All four words describe positive feelings, but they differ in intensity, duration, and use. 'Glad' is the closest to 'happy' but is usually tied to a specific reason ('I am glad you called'), and it never describes a personality. 'Pleased' implies satisfaction with a result or someone's effort; it is slightly more formal and controlled than 'happy.' 'Cheerful' describes a lasting mood or personality type — a cheerful person laughs easily and stays positive, while a happy person may simply be reacting to good news. 'Content' is quieter: it means being at peace with what you have, without wanting more ('After a good meal, he felt warm and content'). Use 'happy' for the broadest range of positive feelings; use 'glad' or 'pleased' for reactions to specific events; use 'cheerful' for someone's general nature; and use 'content' for calm satisfaction.

glad ↗pleased ↗cheerful ↗content ↗

Common collocations

Nouns

  • happy ending
  • happy face
  • happy smile
  • happy memory
  • happy hour
  • happy thought
  • happy feeling
  • happy life

Adverbs

  • very happy
  • really happy
  • perfectly happy
  • genuinely happy
  • truly happy
  • extremely happy
  • quite happy

Phrases

  • happy go lucky
  • more than happy to
  • happy as a clam
  • happy days

Prepositions

  • happy about
  • happy with
  • happy for

Etymology

Old NorseMiddle EnglishEnglish

The word 'happy' comes from the Old Norse word 'happ', which meant 'luck' or 'good fortune'. In Middle English (around the 1300s), 'happy' originally meant 'lucky' or 'favoured by fortune' — the same idea preserved today in sense 3 ('a happy coincidence'). Over time, the meaning shifted inward: from 'having good luck' to 'feeling good because of good luck', and eventually to a general feeling of pleasure and contentment unrelated to luck (sense 1). The greeting use (sense 2) developed in the 1600s–1700s as fixed phrases like 'Happy Birthday' and 'Happy New Year' became social conventions.