- s unpleasantly and excessively suave or ingratiating in manner or speech
the unctuous Uriah Heep
- Till the contract was finally awarded, a bunch of unctuous middle men waited to do the politician's bidding.
- His wide-eyed, basset-unctuous, hand-kneading style on The David Frost Show reminded some viewers of Uriah Heep.
- Reed forwarded Abramoff an unctuous message Ballabon had sent him and Reed added the comment, "It's now becoming physically painful," an apparent reference to Reed's distaste at .