It's composed of two characters:
* 丑 (chǒu) means ugly or unattractive
* 陋 (lòu) means shabby, crude, or vulgar
Important Note: This term is considered quite harsh and is generally not used in polite conversation. If you need to express that something is not aesthetically pleasing, you might choose a softer term like "bu hao kan" (不好看) which literally means "not good-looking."