Synonyms and related words :
downiness, evenness, fatness, fattiness, flatness, frictionlessness, glabriety, glabrousness, glossiness, levelness, lubricity, oiliness, pinguidity, regularity, richness, saponaceousness, saponacity, satininess, sebaceousness, silkiness, sleekness, slickness, slipperiness, smoothness, soapiness, suavity, unctuousness, uniformity, velvetiness