WordWeb Online

1. The act of procrastinating; putting off, delaying or deferring an action to a later time
   - procrastination, cunctation

1. Be uncertain and vague
    
2. Postpone doing what one should be doing
   "He did not want to write the letter and shillyshallied for days";
   - procrastinate, stall, drag one's feet [informal], drag one's heels [informal], dilly-dally [informal], dillydally [informal]

Derived forms: shillyshallied, shillyshallies, shillyshallying

Type of: blow hot and cold [informal], delay, holdup, hover, oscillate, vacillate, vibrate