stealth wealth

informal uncountable

(informal) Monetary wealth that its owner keeps secret or discreet, rather than flaunting it.

Japanese Meaning

ひけらかさずに内密に保持される財産 / 外部に目立たせず、秘密裏に蓄えられる富

He embraced stealth wealth, preferring to keep his financial comfort private rather than display it.

彼は目立たない富を受け入れ、財政的な余裕を誇示するよりむしろそれを公にせずに静かに保つことを好んだ。

Sense（1）

(informal) Monetary wealth that its owner keeps secret or discreet, rather than flaunting it.