unsaturated adjective 3noun 1forms 1 adjective3 •Not saturated; capable of dissolving more of a solute at the same temperature. •Of a compound containing atoms sharing more than one valence bond, especially of an organic compound having one or more double bonds or triple bonds between carbon atoms. •Not chromatically pure; diluted. noun1 •An unsaturated hydrocarbon.[…] the unsaturateds (mainly butadiene and cyclopentadiene) in these gases. — 1953 formsunsaturateds
