na-adjective, noun
Describes a lifestyle, appearance, or thing that is free from luxury, decoration, or complexity. Often positive, implying refinement through simplicity.
彼は質素な生活を送っている。
He leads a simple life.
部屋は質素だが
The room is plain, but it's very relaxing.
na-adjective, noun
Focuses on a person's character or behavior: not showy, avoiding extravagance, and being content with little. Often used for spending habits or personal tastes.
彼女は質素で、贅沢を好まない。
She is modest and doesn't like luxury.
質素な食事でも、家族と一緒なら楽しい。
Even a frugal meal is enjoyable with family.