ostentation

The actress avoids ostentation. She owns a small house and drives an inexpensive car.那位女演员不愿意炫耀。她住的是小房子，开的是经济型轿车。

She dressed stylishly without ostentation. [=she dressed in a way that was simple yet attractive]她穿着高雅而不招摇。

He writes simply and clearly and without ostentation.他的文字简洁明了不加粉饰。