wealth has 2 distinct synonyms spread across 2 of its 4 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. Its one recorded opposite is poverty.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
the state of being rich and affluent; having a plentiful supply of material goods and money
“great wealth is not a sign of great intelligence”
the quality of profuse abundance
“she has a wealth of talent”
Synonyms, antonyms and the broader and narrower relations for wealth come from Princeton University’s WordNet. Full sources and licences.