I'm sure I'm considered rich by most people, but I'm not really living any different than I did 35 years ago when our income was $20k.
We have 40X to 50X our spending rate, but still drive 12 and 20 year old vehicles, rarely eat out, live in a 3br, 2bath,
$160k house. I'm sure the neighbors think we have just as much financial stress as they do, but we don't.
That all said, I don't feel rich, on the other hand, I don't know what want that I would spend more money on!
So, I would define Rich, as what the other guy says about you. They may or may not be right.