unctuousness

noun

1. (uncountable)The state or characteristic of being unctuous.

   “Plum-pudding is the term bestowed upon certain fragmentary parts of the whale's flesh, here and there adhering to the blanket of blubber, and often participating to a considerable degree in its unctuousness.”

   “Only Mr. Radbolt's unctuousness—surely it would have smoothed the stormiest waves—saved the social situation.”