A weak solution is a mixture in which one or more solutes are present in such small amounts that they do not significantly affect the properties of the solvent. In other words, it refers to a dilute solution where the concentration of the solute is so low that it does not produce a visible effect on the color, odor, taste, or clarity of the solvent. The term "weak" in this context means that the solute is present at such a small amount that its effects are negligible compared to those of an undiluted solution.