What are the liquids insoluble in a liquid called?

The liquids that do not get dissolved in a liquid are called immiscible liquids. Oil and petrol are examples of immiscible liquids. The liquids that get dissolved in a liquid are called miscible liquids. Milk and fruit juice are examples of miscible liquids. A solid substance that does not get dissolved in water is called an insoluble substance. Sand is an example of an insoluble substance.