He was smart and well groomed but not good looking.

他时髦而且打扮整齐，但是长得不帅。

《柯林斯英汉双解大词典》

He was not good looking.

他长得不好看。

youdao

youdao

No objection to an older man or to one who is not good-looking.

VOA: special.2010.04.24

So, if you're looking for another reason to quit, if you're looking for a reason not to start smoking, here's another good one.

因此，如果你正在寻找戒烟的另一个理由，如果你正在寻找一个不开始吸烟的理由，这就是很好的一个。

麻省理工公开课 - 化学原理课程节选

That's a very difficult challenge in the Senate right now. It's not looking very good these days,

目前这在参议院是很大的挑战。现今的形势看上去不容乐观。

对全球变暖的政策 - SpeakingMax英语口语达人

He was not good looking, at least not in the smooth, symmetrical way expected of leading men, but women found him strangely attractive.

ECONOMIST: Charles Bronson

But poor good looking women do have an opportunity to make the leap across that equality chasm in a way that not good looking poor women or almost all poor men do not.

FORBES: China, Brazil, USA Lead For Plastic Surgery: Why?

But the image in the mirror was unmistakably me not young, not good-looking, not anything in particular, a little slumped, heavy at the waist, pouchy under the eyes, not the sort of man that anyone would ever choose to be.

NEWYORKER: Miracle Polish