The antonyms for the word "unlovelier" can vary depending on the context. If we are talking about physical beauty, some antonyms would be "gorgeous," "stunning," or "radiant." If we refer to personality, we could use antonyms like "charming," "amiable," or "winsome." A person's actions could also make them unlovely if they are unkind, insensitive or cruel. The antonyms for these actions could be "thoughtful," "considerate" and "kind." In general, the opposite of "unlovely" is something that is pleasing, pleasant, or beautiful in its way, which can give comfort and happiness to those around it.