oleaginous

adj

1. Oily, greasy.

   “[…] the use of Linseed-oyl, Tar, or such oleaginous Matter, tends much to their Preservation and Duration.”

   “Looking back, it seemed to me that a slight oleaginous mist was still hovering round the chair.”

   “His once-black hair had faded to the color of used steel wool and now covered his bony skull in a peculiar oleaginous fuzz.”

2. Falsely or affectedly earnest; persuasively suave.

   “The oleaginous salesman convinced me to buy a more expensive car.”

   “Cruz was obviously analogizing Bernie Sanders to the Bolsheviks and Hillary Clinton to the Mensheviks. The oleaginous Texan is an erudite slyboots, but his history is off-kilter.”

   “The oleaginous Mike Pence, with his talent for toadyism and appetite for obsequiousness, could, Trump knew, become America’s most repulsive public figure.”

   “She runs a mentoring scholarship programme for women, administered by a tiresome, oleaginous would-be conductor, played by Mark Strong, and there are rumours that this is a source of young women with whom Tár has affairs.”