coincidence
It wasn’t a coincidence at all.
Qué coincidencia, mudarse el mismo día.
What a coincidence, moving on the same day.
— Deseando amar (2000)
Qué feliz coincidencia, porque igual me agrada.
What a happy coincidence, because I like it too.
— La increíble historia de David Copperfield (2019)
Esto no puede ser coincidencia.
This can't be a coincidence.
No es una simple coincidencia.
It's not a simple coincidence.
It was pure coincidence.