Is it possible to not have wisdom teeth at all?

Is it possible to not have wisdom teeth at all?

I don't know when wisdom teeth usually grow in, but

I didn't think much of it, thinking it would grow up someday.

When I recently had an X-ray taken at the dentist, the hidden tooth
I didn't find any. So, you don't have wisdom teeth, right?

Wisdom teeth grow in different people, and
Is it possible that there isn't any at all?

Or is it possible that it might reappear even though it isn't there now?