relative

在物理学中，时间的概念是相对的，而非绝对的。

In physics, the concept of time is ___relative, not absolute.

与其他地区相比，西方享有相对的繁荣。

The West enjoys ___relative prosperity compared to other regions.

他在二十岁出头时，就表现出一种超越年龄的相对成熟。

In his early twenties, he showed a ___relative maturity beyond his years.