The word "un-lovely" refers to something that is unpleasant or not attractive. Antonyms for this word would be words that describe things that are beautiful, pleasing or attractive. Some of the antonyms for "un-lovely" include "lovely," "beautiful," "appealing," "gorgeous," "charming," "attractive," "pleasant," "captivating," "enchanting," and "alluring." These words describe things that are visually pleasing, and evoke positive emotions. It is important to use these antonyms in the right context to effectively communicate the desired message. Using antonyms can provide clarity, and help to convey the desired tone and mood of the message being conveyed.