1. the quality or state of being smooth and slippery
2. skillful cleverness, especially in a way that seems superficial or deceptive
Usage: often implies insincerity

Examples

• The slickness of the icy sidewalk made walking dangerous.
• Oil created a slickness on the water’s surface.
• The politician’s slickness made voters question his honesty.
• Her presentation had a certain slickness that impressed the clients.
• The salesman’s slickness was obvious from his rehearsed pitch.
• Rain increased the slickness of the road conditions.
• Despite his slickness, she saw through his empty promises.