The phrase "am the same mind" implies agreement or similarity in thought. Antonyms for this phrase could include "disagree," "oppose," "contradict," and "dissent." When two individuals are not of the same mind, they have opposing viewpoints or ideas. Alternatively, they might have different opinions or beliefs that don't align. This could lead to conflict or a lack of understanding between the parties. It's important to acknowledge and respect differences in perspectives in order to foster healthy communication and relationships, and to find common ground where possible.