slick

Having only superficial plausibility.

“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”

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”

Marked by skill in deception.

“a slick evasive answer”

A trowel used to make a surface slick.

A slippery smoothness.

“he could feel the slickness of the tiller”

A magazine printed on good quality paper.

A film of oil or garbage floating on top of water.

Make slick or smooth.

Give a smooth and glossy appearance.

“slick one's hair”