(adjective) Will not dissolve When one substance (X) will not dissolve in another substance (Y), then substance X is said to be insoluble in substance Y Example: NaCl is insoluble in acetone
not dissolvable With respect to bioavailability, certain substances form insoluble complexes that cannot be dissolved in digestive secretions, and therefore cannot be absorbed by the digestive tract
An adjective that describes a substance that is incapable of being dissolved in a liquid