slick

marked by skill in deception

cunning men often pass for wise

deep political machinations

having a smooth, gleaming surface reflecting light

glossy auburn hair

satiny gardenia petals

having only superficial plausibility

glib promises

a slick commercial

made slick by e.g. ice or grease

sidewalks slick with ice

roads are slickest when rain has just started and hasn't had time to wash away the oil

a trowel used to make a surface slick

a film of oil or garbage floating on top of water

a slippery smoothness

he could feel the slickness of the tiller

a magazine printed on good quality paper

give a smooth and glossy appearance

slick one's hair

make slick or smooth