What describes something that is lewd, wanton, or slippery?

The term "lubricious" effectively captures the notion of something that is lewd, wanton, or slippery. In its adjective form, it often describes behavior that is lustful or lascivious, conveying a sense of sensuality that is excessive or inappropriate. The root of the word "lubricious" is associated with the idea of lubrication, which can metaphorically suggest something that is smooth or slippery in both a physical and moral sense. This duality in its meaning aligns perfectly with the definitions related to lewdness and wanton behavior.

The other terms do not align with the context of lewd or slippery. "Luculent" means clear or bright, which is unrelated to the question. "Macerate" refers to softening something by soaking it in a liquid, which does not pertain to lewdness or a slippery quality. "Mellifluous" describes a sound that is sweet or musical; thus, it does not connect to any notions of lewdness or slipperiness. Therefore, the appropriateness of "lubricious" lies in its encompassing of these nuanced meanings.