Antonyms for the word "unpopularities" include "popularity," "favoritism," "approval," and "admiration." These words indicate a positive response to an individual or group, as opposed to a negative one. When someone or something is "unpopular," it is not well-liked or favored, whereas "popularity" indicates a high level of approval and admiration. Similarly, "favoritism" suggests a preference for a particular individual or group, whereas "approval" implies a general endorsement. Finally, "admiration" connotes a high level of respect or honor, as opposed to the lack of appreciation implied by "unpopularities." Overall, these antonyms highlight the importance of positive social attitudes and demonstrate the difference between approval and disapproval.