- The definition of inability is the state of having no power or a lack of ability.
An example of inability is not understanding how to operate a computer.
inability 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.
the quality or state of being unable; lack of ability, capacity, means, or power
Origin: Middle English inabilite: see in- and amp; ability
inability definition by American Heritage Dictionary
Lack of ability or means.