slick

having only superficial plausibility

“a slick commercial”

a trowel used to make a surface slick

made slick by e.g. ice or grease

“sidewalks slick with ice”

a slippery smoothness

“he could feel the slickness of the tiller”

superficially impressive, but lacking depth and attention to the true complexities of a subject

“a slick advertising campaign”

having a smooth, gleaming surface reflecting light

“slick seals and otters”

make slick or smooth

marked by skill in deception

“a slick evasive answer”

a magazine printed on good quality paper

give a smooth and glossy appearance

“slick one's hair”

a film of oil or garbage floating on top of water