wealthiest 是 wealthy 的最高級

wealthy

KK [ˋwɛlθi] /ˈwɛlθi/

形容詞

1
富有的、有錢的、富裕的
She married into a wealthy family from the south of the country.
她嫁進了南部一個富有的家庭。
2
豐富的、富含的後接 in
The region is wealthy in minerals but short of clean water.
這個地區礦產豐富，但缺乏乾淨的水源。

名詞

1
有錢人、富人與 the 連用，視為複數
New tax rules will mainly affect the wealthy.
新的稅制主要會影響有錢人。