n. 25B6; adjective
a slick advertising campaign : EFFICIENT, smooth, smooth-running, polished, well organized, well run, streamlined.
his slick use of words : GLIB, smooth, fluent, plausible.
a slick salesman : SUAVE, urbane, polished, assured, self-assured, smooth-talking, glib; informal smarmy.
her slick brown hair : SHINY, glossy, shining, sleek, smooth, oiled.
the pavements were slick with rain : SLIPPERY, slithery, wet, greasy; informal slippy.
25B6; verb his hair was slicked down : SMOOTH, sleek, grease, oil, gel; informal smarm.