na-adjective, noun
purity; homogeneity; unadorned
Describes something pure, unmixed, or plain, often in a formal or literary context. Can refer to abstract qualities or simple, unadorned states.
彼の作品には純一な美しさがある。
His work has a pure beauty.
この合金は純一な組成を持っている。
This alloy has a homogeneous composition.