Soluble

Webster's Dictionary of the English Language

·adj Relaxed; open or readily opened.

II. Soluble ·adj Susceptible of being dissolved in a fluid; capable of solution; as, some substances are soluble in alcohol which are not soluble in water.

III. Soluble ·adj Susceptible of being solved; as, a soluble algebraic problem; susceptible of being disentangled, unraveled, or explained; as, the mystery is perhaps soluble.