be none the worse idiom
未受伤害；没受到不良影响
to not be harmed or damaged by something
They were trapped in the cave for a couple of days but they were none the worse for their experience. 他们被困在洞穴中好几天，但这一经历对他们没有什么影响。
He's lost some weight but he's none the worse (= he's better) for it. 他体重轻了一些，可是这对他的身体有好处。