Noun

• S: (n) affluent (an affluent person; a person who is financially well off) "the so-called emerging affluents"
• S: (n) feeder, tributary, confluent, affluent (a branch that flows into the main stream)

Adjective

• S: (adj) affluent, flush, loaded, moneyed, wealthy, substantial (having an abundant supply of money or possessions of value) "an affluent banker"; "a speculator flush with cash"; "not merely rich but loaded"; "moneyed aristocrats"; "wealthy corporations"; "a substantial family"