unctuosity

Hummus owes much of its unctuosity to rich tahini—sesame paste.

From Slate ● Aug. 9, 2018

What he has missed is dignity: his pitfalls have been unctuosity, on the one side, bravado on the other.

From A Book of Scoundrels by Whibley, Charles

It has in part the unctuosity of bees' wax, and somewhat of the brittleness of resin.

From The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. by Simmonds, P. L.

“What I might have expected from my noble compatriot!” exclaimed the Dictator with greasy unctuosity; “I was sure of it.”

From Up the Forked River Or, Adventures in South America by Ellis, Edward Sylvester