Being operation refers to an event in which a person goes through a medical procedure. The term refers to the state of undergoing surgery. The antonyms for being operation include terms that signify good health, such as recovery, wellness, fitness, and soundness. These words indicate a state of medical stability for an individual. Other antonyms for being operation include terms such as prevention, precaution, and safety, which reflect measures that individuals take to avoid the need for surgery. Ultimately, using these antonyms in place of being operation allows a person to express a state of health without referencing any medical intervention.