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What's the word for a sudden surge of love?

The word you're looking for

infatuation /ɪnˌfætʃuˈeɪʃn/

Infatuation is a sudden, intense romantic attraction to someone, often based on physical appeal or fantasy rather than deep knowledge. It captures the 'sudden surge' of passionate feeling that typically doesn't last long.

Other words that fit

Use this more formal, technical term when describing the psychological state of involuntary, obsessive romantic desire—more precise but less common in everyday English.

Use this casual, conversational term when referring to sudden attraction to a specific person, especially common when talking about younger people or brief attractions.

Use this broader term for intense emotional or romantic feeling in general, not necessarily sudden, temporary, or focused on one person.

Why this word

Infatuation and limerence both describe sudden, intense romantic feelings, but they differ in how common and formal they are. Infatuation is the everyday word most B1 learners know and use naturally in conversation. Limerence is a technical, psychological term for that obsessive, involuntary state of romantic desire—useful in formal or literary writing. A common mistake is saying "love" when you mean "infatuation"; genuine love is deeper and grows slowly over time, while infatuation often fades within weeks or months. Understanding this distinction helps you express romantic feelings more accurately in English.

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Frequently asked questions

Is infatuation the same as love?
No. Infatuation is sudden, intense, and usually temporary—lasting weeks or months. Real love develops slowly over time and is more lasting, committed, and based on deep understanding of the other person.
When should I use 'limerence' instead of 'infatuation'?
Use limerence in academic, formal, or literary writing to describe the specific psychological state of involuntary romantic obsession. In everyday conversation, infatuation is more natural and commonly understood.
Can infatuation turn into love?
Sometimes, yes. If two people have genuine compatibility and spend meaningful time together, initial infatuation can develop into deeper love. However, infatuation often fades quickly without becoming real love.
What's the difference between infatuation and a crush?
A crush is usually casual or one-sided attraction to someone specific (often unreciprocated). Infatuation is more intense and all-consuming, involving emotional investment. Crush is also more common when describing younger people.