Source : Webster's Revised Unabridged Dictionary (1913)

Oleaginousness \O`le*ag`i*nous*ness\, n.
   Oiliness. --Boyle.

Source : WordNet®

oleaginousness
     n 1: consisting of or covered with oil [syn: {greasiness}, {oiliness}]
     2: smug self-serving earnestness [syn: {fulsomeness}, {oiliness},
         {smarminess}, {unctuousness}, {unction}]