How to Say "coincidence" in Spanish
The most common Spanish word for “coincidence” is “casualidad” — use 'casualidad' for everyday, often pleasant, unexpected events or meetings that feel like a happy chance..
casualidad
/kah-soo-ah-lee-DADH//kaswaliˈðað/

Examples
¡Qué casualidad! Estaba pensando en ti.
What a coincidence! I was just thinking about you.
Encontré las llaves perdidas por pura casualidad.
I found the lost keys purely by chance.
Si ves a mi hermano, ¿podrías decirle que me llame? Solo si es casualidad.
If you see my brother, could you tell him to call me? Only if it’s by chance.
The 'By Chance' Expression
To say that something happened 'by chance' or 'accidentally,' always use the fixed expression 'por casualidad.' This is a key phrase to memorize.
Casualidad vs. Accidente
Mistake: “Using 'casualidad' to mean a car crash or a physical injury.”
Correction: Use 'accidente' for crashes or physical mishaps. 'Casualidad' refers only to an unpredicted event or coincidence: 'Tuvimos un accidente de coche' (We had a car accident).
coincidencia
koh-een-see-DEN-syah/koinsiˈðensja/

Examples
¡Qué coincidencia! Yo también estudio en esa universidad.
What a coincidence! I also study at that university.
No fue planeado, fue pura coincidencia que estuviéramos en el mismo café.
It wasn't planned, it was pure coincidence that we were in the same café.
Expressing Surprise
To express surprise, use '¡Qué coincidencia!' (What a coincidence!) or 'Es una coincidencia' (It is a coincidence).
Using 'Coincidencia' for 'Chance'
Mistake: “Sometimes learners use 'coincidencia' when they mean 'by chance' (por casualidad).”
Correction: Use 'Por casualidad, encontré mi cartera.' (By chance, I found my wallet.)
accidente
/ak-see-DEN-tay//ak.siˈðen.te/

Examples
Nuestro encuentro no fue planeado, fue un simple accidente del destino.
Our meeting wasn't planned, it was a simple accident of fate.
En la filosofía, se distingue entre la esencia y el accidente.
In philosophy, a distinction is made between essence and accident (a non-essential property).
Casualidad vs. Coincidencia
Related Translations
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