Having an aversion to water. The process of hydrophobic states that substances which are not polar do not mix with water molecules. This is important since water is a molecular that is considered polar and possesses a partial charge between its atoms. Since hydrophobic molecules are not accompanied with a charge, they are non-polar, and are not able to interact with water. For this reason, these molecules (or materials) do not dissolve in water or other liquid solutions. Many organisms in nature contain hydrophobic traits (humans) and as a result can come into direct contact with water without dissolving.