Superintegrable is a word describing a system that has multiple independent integrals of motion. Synonyms for this term include "completely integrable," "maximally superintegrable," and "exactly solvable." These words imply that the system's motion is not only predictable, but can be completely understood through mathematical analysis. Other phrases that can be used in place of "superintegrable" include "conservative system," "Liouville integrable," and "integrable Hamiltonian system." These words are often used in physics and mathematics to describe complex systems that can be fully characterized and accurately modeled. In summary, "superintegrable" has many synonyms that are used interchangeably in both academic and colloquial settings.