I think for me I will describe procrastination as laziness. Yes I think a greater part of what causes procrastination is laziness because it delays you to call for action on the process of achievement.

Most people who procrastinate are more of lazy people. To confirm this, most times that we procrastinate, if we check properly, we are lazy at those points. So, it is tied together, however it is not to mean that people who have been classified as lazy are not great achievers. They are, they draw their strength from zeal and passion.