The antonyms for the phrase "art of same mind" would include terms such as disagreement, dissension, conflict, division, and discord. These words signify a lack of harmony or unity, indicating a divergence in opinion, thought or belief. When individuals are not of the same mind, they may struggle to collaborate, communicate, or work together effectively. In contrast, when people are of the same mind, they share a common understanding and can work more efficiently towards common goals. Therefore, it is essential to understand the antonyms for the phrase "art of same mind" to ensure that differences are acknowledged and addressed to promote positive outcomes in all aspects of life.