Set in opposition means to place something or someone in a position of contrast, opposition, or conflict with another. Antonyms for this phrase could include terms such as harmonize, reconcile, integrate, cooperate, facilitate, or collaborate. These words suggest a coming together, a willingness to work towards a common goal or understanding, and a desire for mutual benefit rather than conflict. Antonyms for set in opposition highlight the importance of communication, compromise, and open-mindedness, rather than digging in and insisting on one's own way. In both personal and professional relationships, these concepts are essential for building trust, mutual respect, and long-term success.