Arrive at conclusion is a commonly used phrase to express the act of reaching a final decision after careful consideration or analysis. However, there are several antonyms for this phrase that convey a different meaning. These include; indecisive, vacillating, unsure, wavering, and ambiguous. When we use these antonyms, we are expressing the idea of uncertainty, confusion, or lack of clarity. It's essential to choose the right words to communicate our thoughts and ideas effectively. Using antonyms can add depth and complexity to our language, providing nuance and subtlety to what we say or write.