- Willpower is defined as discipline and self-restraint.
An example of willpower is someone being able to quit smoking.
willpower 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.
strength of will, mind, or determination; self-control
willpower definition by American Heritage Dictionary
or will pow·ernoun
The strength of will to carry out one's decisions, wishes, or plans.