noun
man of wealth, man of means, capitalist, tycoon, rich man, moneyed man, man of substance, plutocrat, Croesus, nabob, Midas, Dives, man of millions, moneybags*, tippybob*, doughbag*, butter-and-egg man*, big-money man*, money baron*, robber baron*, bankroll*; see also financier.
Antonyms beggar*, poor man, pauper.