The Collaborative International Dictionary of English v.0.48:
Greasiness \Greas"i*ness\, n. The quality or state of being greasy, oiliness; unctuousness; grossness. [1913 Webster]WordNet (r) 3.0 (2006):
greasiness n 1: consisting of or covered with oil [syn: greasiness, oiliness, oleaginousness]