Making one's mind is a phrase that often refers to making a decision or coming to a conclusion about something. Antonyms for this phrase could include phrases such as indecisive, uncertain, hesitant, or ambiguous. These words suggest a lack of direction or clarity about a decision, and can indicate a struggle to come to a conclusion. Other antonyms might include phrases such as undecided or vacillating, which suggest a state of limbo or a lack of commitment to any particular course of action. Ultimately, using antonyms for the phrase making one's mind allows us to explore the different ways in which we experience and navigate uncertainty, indecision, and ambiguity.