super-rich
/ˈsuːpəˌrɪtʃ/ /ˈsjuːpəˌrɪtʃ/adjective
1Extremely or exceptionally rich.
2Specifically. Very wealthy.
noun
With the: very wealthy people as a class.
Origin
Early 19th century; earliest use found in Daily National Intelligencer (Washington). From super- + rich.