"不好看" (bù hǎo kàn) is a phrase in Chinese that means "not good-looking" or "unattractive".
In Engpsh, you can use the phrase "not attractive" or "unattractive" to describe something that is not good-looking. For example:
"The painting is not attractive." (这幅画不好看。)
"I don't find that dress very attractive." (我觉得那件裙子不怎么好看。)
You can also use the adjective "ugly" to describe something that is not attractive. For example:
"That shirt is really ugly." (那件衬衫真丑。)
"I think that hairstyle is quite ugly." (我认为那个发型很丑。)
Note that "ugly" is a more strong and negative word, so it is important to use it carefully. It is generally not considered popte to describe someone or something as "ugly", and it is often best to avoid using this word altogether. Instead, you can use more neutral or popte words pke "unattractive" or "not attractive" to convey the same meaning.