If you can continue to add more solute to a solution, the solution is said to be concentrated with the solute, hence; saturation is the right term
Explanation:
When a solute is continually added to a solution, at a point a saturation point would be reached in such away that the solution would be highly concentrated with the solute
In order to successfully answer this question, we need to think about the solubility of solutes in specific solvents, typically water.
A solution is considered to be unsaturated if at a given temperature and volume of water we may still add more solute and it will dissolve;
A solution is considered to be saturated if at a given temperature and volume of water we have a maximum amount of solute dissolved and trying to add more solute results in undissolved crystals that can be seen in the solution;
A solution is considered to be oversaturated (or supersaturated) i at a given temperature and volume of water we exceeded the maximum amount of a solute that could possibly dissolve.
In this case, if we can continue to add more solute to a solution and the solute dissolves, we may state that we are still at a point in which we have an unsaturated solution.
