Antonyms for the phrase "came to a decision" could include "indecisive," "undecided," "conflicted," or "uncertain." All of these words suggest a lack of clear direction or hesitation in making a choice. When someone is indecisive, they may struggle to make up their mind or waver back and forth between options. Being undecided means simply not having made a decision yet, while being conflicted implies feeling torn between two or more options. Finally, feeling uncertain suggests a lack of confidence in one's ability to make a decision or a lack of clarity about the available choices.