1. the quality or state of being oily, greasy, or containing oil
2. the quality of being unctuous or excessively smooth and ingratiating in manner or speech
Usage: figurative

Examples

• The oleaginousness of the salad dressing made it difficult to eat in large quantities.
• The politician's oleaginousness was evident in every word he spoke to the crowd.
• The chef reduced the oleaginousness of the sauce by using less butter.
• Her oleaginousness in conversation made people uncomfortable and suspicious of her motives.
• The oleaginousness of the skin care product left a greasy residue on the face.
• His oleaginousness charm fooled some people, but others saw through his act.