- Hadn’t is defined as a contraction of had not.
An example of hadn’t is when you overeat and say, “I wish I hadn’t eaten that third slice of pie.”
hadn't definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
hadn't definition by American Heritage Dictionary
Contraction of had not.