This is the 10074th most frequent Spanish word.
casualmente
"Casualmente" means "coincidentally" or "by chance" in English.
Here, 'casualmente' describes an action happening by chance or coincidence.
Casualmente encontré un libro interesante en la librería.
Casually, I found an interesting book in the bookstore.
In this context, 'casualmente' highlights a coincidental event during the visit.
Visité a un amigo y, casualmente, me encontré con su prima.
I visited a friend and, coincidentally, I met his cousin.
Here, 'casualmente' emphasizes the coincidence that the same topic was being discussed by everyone.