bourgeoise wife; lady of leisure
Refers to a wealthy married woman who does not need to work and spends time on cultural pursuits, shopping, or social activities. Often carries a slightly dated or class-conscious nuance.
She is a lady of leisure and goes to art museums almost every day.
銀座のカフェには有閑マダムたちが集まっている。
Ladies of leisure gather at the cafés in Ginza.