Which word best describes an excessive or insatiable greed?

The term that best describes excessive or insatiable greed is "avarice." Avarice specifically refers to an intense and often relentless desire for wealth or possessions, pushing the individual to pursue resources far beyond what is necessary or reasonable. This term encompasses not only a strong desire for material gain but also the lack of satisfaction that accompanies such desires, highlighting the insatiable nature of greed.

While terms like "covetousness" also relate to greed, they typically imply a longing for something that belongs to someone else rather than excessive greed itself. "Insatiability" refers more broadly to an inability to be satisfied, which can apply to various contexts beyond greed. "Eagerness," on the other hand, denotes a keen interest or enthusiasm rather than greed. Thus, "avarice" is the most precise and appropriate term for describing a state of excessive and insatiable greed.