The term "most undear" implies something that is not closely loved or valued. Therefore, its antonyms would be adjectives that denote the opposite meaning, such as "beloved," "treasured," "cherished," "dear," "much-loved," "valued," "precious" and "priceless," among others. All of these words suggest that the subject is highly esteemed, appreciated, and prized by its owner or someone else. Therefore, they are frequently used to describe people or things that hold a special place in someone's heart, from family members, friends, and pets to personal possessions such as jewelry, art, or heirlooms. In contrast, the word "most undear" refers to something that might be seen as unimportant or insignificant.