Which word describes a friendly and peaceable nature?

The word "amicable" describes a friendly and peaceable nature, making it the appropriate choice for this question. This term is often used to characterize relationships or interactions that are harmonious and marked by a spirit of goodwill. For example, an amicable divorce refers to a situation where both parties avoid conflict and maintain a respectful relationship throughout the process.

In contrast, "belligerent" implies a hostile or aggressive disposition, which directly opposes the notion of being friendly. "Averse" relates to having a strong dislike or opposition to something, not implying any friendliness or peace. "Cursory," on the other hand, describes something that is done hastily and without thoroughness, which again does not connect to the idea of a friendly nature. Thus, "amicable" stands out as the term best representing a friendly and peaceable disposition.