Laziness and idleness are often used interchangeably, but they have slightly different connotations.
Laziness refers to the tendency to avoid exertion and to be inactive or idle, often out of a lack of motivation or interest. It is generally viewed as a negative trait and associated with procrastination, decreased productivity, and a lack of initiative.
Idleness, on the other hand, refers to a state of not being busy or occupied, regardless of the reason. While idleness can sometimes be a result of laziness, it can also occur as a result of circumstances beyond one's control, such as unemployment or a lack of opportunities. Unlike laziness, idleness is not always viewed as a negative thing and can have positive effects, such as allowing time for relaxation, reflection, and personal growth.
In short, laziness is a behavior, while idleness is a state of being. The difference between the two lies in the motivation behind the behavior.