procrastinate in WordNet English dictionary

1. postpone doing what one should be doing
   "He did not want to write the letter and procrastinated for days"
   procrastinate  stall  drag one's feet  drag one's heels  shillyshally  dilly-dally  dillydally 
   
2. postpone or delay needlessly
   "He procrastinated the matter until it was almost too late"
   procrastinate