Which word is synonymous with "slothful"?

The word "slothful" is defined as being lazy or exhibiting a lack of effort or energy. This makes it synonymous with "lazy," as both terms convey a sense of unwillingness to work hard or engage in activity. When someone is described as slothful, it implies they are sluggish in their actions and prefer inactivity.

In contrast, the other choices reflect different qualities. "Industrious" refers to being diligent and hardworking, "active" indicates a state of being engaged in activities, and "energetic" describes someone filled with energy and vigor, all of which are antonyms of being slothful. Thus, identifying "lazy" as synonymous effectively highlights the core meaning of being slothful.