> It's a value judgment based on behavior observed. So it's exactly what I said in the first comment - "lazy" just means "one who doesn't do what they ought to

> It's a value judgment based on behavior observed. So it's exactly what I said in the first comment - "lazy" just means "one who doesn't do what they ought to". So it's completely meaningless, except for the part of describing behavior, and cannot be used as an explanation - i.e. "he didn't do his homework because he's lazy" is a circular statement.