Determinacy refers to the quality of being determinate or definite. It is the state of having a clear outcome or decision. Synonyms for determinacy include resolution, certainty, decisiveness, conclusiveness, and finality. Other synonyms include definiteness, specificity, exactness, precision, and unambiguity. These words describe the same concept of having a firm and definite conclusion. Determinacy is also related to the field of mathematics, where it refers to the state of a mathematical problem having a unique and well-defined solution. In general, these synonyms can be used interchangeably, and they all communicate the same idea of something being final, certain, and clear.