Roget's Thesaurus

unctuousness etc. adj.; unctuosity, lubricity; ointment etc. (oil) 356; anointment; lubrication etc. 332.

oil etc. (lubricate) 332.

unctuous, oily, oleaginous, adipose, sebaceous; unguinous; fat, fatty, greasy; waxy, butyraceous, soapy, saponaceous, pinguid, lardaceous; slippery.