Translation of "zreo" into English

Tom je delovao starije i zrelije od ostalih dečaka.

Tom seemed older and more mature than the other boys.

Da li su zrele ove banane?

Are these bananas ripe?

Ali ti si nesposobna da doneseš zrelu odluku.

But you are incapable of making an adult decision.

Sada je zreo čovek, sa snovima o ispravnom životu.

Now he's a mellowed man with dreams of making an honest life for himself.