It's pretty painful now. But it will be nothing serious in a while when you look back.

现在非常痛苦，等过阵子回头瞧瞧，会发现其实那都不算事。

youdao

I had initially thought that there would be nothing serious because it was fairly common for an old man to catch illness. Therefore, I just wished him a smooth strip then.

本来我以为没什么大问题的，毕竟人老了，有病痛是在所难免的，于是也没有想太多，只是祝他一路顺风。

youdao

"Iran is trying to gain nuclear weapons. And if nothing serious, nothing dramatic will be done by the West,it will get there in a year or two,".

VOA: standard.2009.12.28

Those who think this is just business as usual are ahistorical, and those who think nothing can be done, or nothing serious should be done, are suffering from Cynicism Poisoning.

WSJ: An Antidote to Cynicism Poisoning

Many felt that everything was important and nothing could be dropped without serious consequences.

FORBES: The Problem With Priorities

If nothing else, some serious competition will be good for the rest of this wild and sad market.

FORBES: Google-Style Money for America's Poor