内ない福ふく

na-adjective, noun

richer than it appears; secretly wealthy

Describes a person or household that is actually well-off despite an outwardly modest or frugal appearance. Often used in the phrase 内福な人.

• 彼かれはいつも質しっ素そな服ふくを着きているが、実じつは内ない福ふくなんだ。