The phrase "am one's fate" refers to the belief that an individual's destiny is predetermined and cannot be changed. Antonyms for this phrase would include words and concepts such as free will, choice, agency, autonomy, and self-determination. These antonyms suggest that individuals have the ability to make choices and shape their own destiny, rather than being subject to preordained fate. By embracing these antonyms, individuals may feel empowered to take control of their lives and make decisions that lead to their desired outcomes, rather than resigning themselves to a predetermined fate.