Procrastinating is generally more of a "habit" - if you are "good at procrastinating", as some people put it, you regularly postpone things that you should have done earlier. It's somewhat similar to the word 'lazy', and has a somewhat negative connotation, albeit used humorously every now and then. Postponing, on the other hand, is a more neutral way of expressing doing something later, and it does not imply a habit. For instance a meeting can be postponed, but you couldn't use the word "procrastinate" here easily. However, you can also use 'postpone' to things that you just decide to do later. I hope this helps a little.

'Procrastinate' can't have an object. It is a general term describing the habit of not dealing with jobs that need to be done. 'John is always procrastinating.' 'Postpone' must have an object. You have to postpone SOMETHING. You can postpone a match, postpone a meeting, postpone a holiday. It is a synonym of 'put off'. 'John has postponed the launch date for the new product'.

Hello Seb, Procrastinate means to delay a task or an activity. Postpone means to arrange something later than originally planned.