affluent

(noun) an affluent person; a person who is financially well off. Examples: "The so-called emerging affluents."

(noun) a branch that flows into the main stream. Synonyms: feeder, tributary, confluent.

(adj) having an abundant supply of money or possessions of value. Synonyms: flush, loaded, moneyed, wealthy. Examples: "An affluent banker." "A speculator flush with cash." "Not merely rich but loaded." "Moneyed aristocrats." "Wealthy corporations."