I consider myself reasonably well-off but am unlikely to become even a millionaire in my life (inflation-adjusted). I’d say millionaire = rich, 10-20 million or

I consider myself reasonably well-off but am unlikely to become even a millionaire in my life (inflation-adjusted). I’d say millionaire = rich, 10-20 million or more = super rich. See also https://en.wikipedia.org/wiki/High-net-worth_individual https://en.wikipedia.org/wiki/High-net-worth_individual.