- The definition of tenacity is the state of holding on to an idea or a thing very strongly.
An example of tenacity is an athlete with an injury completing a difficult race.
tenacity 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 tenacious
Origin: Classical Latin tenacitas
tenacity definition by American Heritage Dictionary
The state or quality of being tenacious: “Social styles developed in the 19th century withstand, with sporelike tenacity, all that the present century can throw at them” (Larry McMurty).