He became a taciturn man, a man not easy to live with. Later, when the older children married and had children of their own, he mellowed a little.

他变成了一个沉默寡言的人、一个不容易相处的人。后来，等大点的孩子们结了婚，也有了他们自己的孩子，他变得平和了些。

《柯林斯英汉双解大词典》

And he has mellowed with age and no longer beats her, Wang said.

王说丈夫年纪大了，脾气也温和了一些，现在不再打她了。

youdao

As much as Mr. Gilb says that the stroke has mellowed him, he also remains true to his longstanding reputation as a boisterous, sometimes irascible figure.

虽然吉尔先生说这场中风使他成熟了许多，但他依然保持着他作为一个激进，有时脾气暴躁的人物的本真，一如他长期在人们心目所具有的名声那样。

youdao

If he mellowed out, maybe he could someday have a family.

NEWYORKER: Puppy

Though Tony will still speak his mind, he has mellowed over the years.

FORBES: Tony Stewart: Nascar's Businessman

And, you know, I don't - I think he's actually mellowed out considerably over the years.

NPR: McCain Keeps Home Fires Burning