The word "bestloved" implies a high degree of affection and attachment towards someone or something. Antonyms for this word would indicate a lesser degree of admiration or even dislike. Some possible antonyms include "hated," "detested," "despised," "abhorred," "repugnant," "unpopular," "unloved," and "disliked." These antonyms convey a negative connotation and suggest a lack of appreciation or affection. While the term "bestloved" is often associated with cherished memories and beloved objects, its antonyms emphasize a sharp contrast in feelings towards certain people or things.