- a foxy scheme.
-  a silklike fabric.
-  a slick advertising campaign.
-  a slick commercial.
-  a slick evasive answer.
-  a wily old attorney.
-  cunning men often pass for wise.
-  deep political machinations.
-  glib promises.
-  glossy auburn hair.
-  he could feel the slickness of the tiller.
-  it was a neat plan, but bound to fail.
-  roads are slickest when rain has just started and hasn't had time to wash away the oil.
-  satiny gardenia petals.
-  sidewalks slick with ice.
-  silken eyelashes.
-  silky skin.
-  sleek black fur.
-  slick one's hair.
-  slick seals and otters.
-  sly as a fox.
-  too facile a solution for so complex a problem.
-  tricky Dick.