Noun unctuousness has 1 sense

1. fulsomeness, oiliness, oleaginousness, smarminess, unctuousness, unction - smug self-serving earnestness
   --₁ is a kind of hypocrisy
   

Unctuousness

Noun:

1. The quality or characteristic of being excessively flattering or insincere.

2. The presence of excessive oiliness or greasiness on a substance or in a person's manner.

Sample Sentences:

1. The politician's unctuousness during his speech was almost unbearable.

2. The car mechanic's hands were covered in unctuousness, making it difficult to hold any tools properly.

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