Antonyms for "more endeared" would include the words estranged, alienated, detached, unfriendly, antipathetic, cold, dispassionate, indifferent, aloof, and unfond. These words all suggest a lack of warmth, fondness, or affection in a relationship. If you were to say that someone was "more estranged" or "more alienated" from someone else, for example, it would mean that they were becoming less close or intimate. These antonyms remind us that just as relationships can deepen over time, they can also deteriorate or fall apart due to a lack of emotional connection.