The word "more inoperable" implies that something is increasingly impossible or impractical to operate. Its antonyms, on the other hand, suggest a sense of feasibility and practicability. The antonyms of "more inoperable" include terms such as workable, operable, functional, practical, feasible, and usable. These words describe something that is capable of being operated, functional, and serviceable. When used in a sentence, these antonyms can help convey a positive outlook and a sense of progress. For example, "The new technology implemented in our factory has made the machines more operable, leading to an increase in productivity.