معنى مفاجئ

What if I told you the volleyball player had a sudden massive stroke?

Now, here it comes. There's an abrupt jump from slow wave sleep.

House always pulls these stunts, and he's right more often

Sudden mood swings, infantile regression, abdominal pain.

I was at Columbia when my mom died. Now there's a blast.

Except for the suddenness of the onset. What's wrong with the timing?