Not sated. / Insatiable.

insatiable; that cannot be sated

That does not cause satiety.

inadequate, substandard or not satisfactory

A fat or oil, from either animal or vegetable sources, containing a high proportion of unsaturated fatty acids; will typically be liquid at room temperature; a diet high in unsaturated rather than saturated fats is thought to contribute to lower levels of cholesterol in the blood.

(biochemistry) A fatty acid, such as oleic acid, that contains at least one carbon to carbon double bond.

(chemistry, of a solution) Not saturated; capable of dissolving more of a solute at the same temperature.

Not satisfied, especially with the quantity of something; dissatisfied; uncontented. / Not gratified; not having been fulfilled or met.

plural of unsaturated fat

Not providing satisfaction.