practicality

I bought these shoes for their practicality, not their appearance.

我买这双鞋是因其实用而并非其样式。

Jonathan has demonstrated enormous practicality in his successful management of the store.

乔纳森经营这家商店很成功，表现出非常强的执行能力。

Your suggestion is appealing in theory, but it lacks practicality.

你的建议理论上很吸引人，但不切实际。