unripened

The unripened apples were too hard to eat.

用法提示：unripened 作定语修饰 apples，表示‘未成熟的’。

These pears are still unripened, so I will wait a few days.

用法提示：unripened 作表语，表示‘未成熟的’状态。

Picked unripened, the plums never developed their full flavor.

用法提示：unripened 作主语补足语，说明采摘时未成熟的状态。