The antonyms for the word "more determinant" are less crucial, less significant, less decisive, less definitive, less influential, less important, less pivotal, less critical, less conclusive, less determining, less dominant, less vital, less relevant, less imperative, less forceful, less paramount, less pertinent, less essential, and less necessary. These words convey the opposite meaning of the word "more determinant," which is often used to describe the significance or importance of a particular factor or situation. To express the opposite meaning, these antonyms can be used in various contexts, such as decision-making, problem-solving, or prioritization, where the emphasis is on minimizing the impact of a particular factor or condition.