The antonyms of "unloveliest" are plentiful, as beauty can be found in many different forms. Some of the most common antonyms for the word include "lovely," "beautiful," "gorgeous," "stunning," "lovable," and "charming." Each of these words represents a different aspect of physical or emotional attractiveness, from the stunning beauty of a sunset to the charming personality of a close friend. While "unloveliest" may represent a lack of beauty or appeal, it is important to remember that beauty is subjective and can be found in many different places if we take the time to look for it.