Which term means inclined or having a natural tendency to?

The term that means inclined or having a natural tendency to something is "apt." In this context, "apt" is commonly used to describe someone who has a propensity or a natural inclination towards a certain behavior or action. For example, if a person is described as "apt to learn quickly," it indicates that they have a natural ability or tendency for learning.

In contrast, the other terms have different meanings that do not align with the idea of inclination. "Adept" refers to someone who is very skillful or proficient at a task, which does not imply any natural tendency. "Amazed" conveys a sense of surprise or wonder, and "apathetic" indicates a lack of interest or concern. None of these alternatives capture the meaning of having a tendency or inclination. Therefore, "apt" stands out as the correct choice for describing a natural tendency.