- The definition of pathbreaking is new or innovative.
An example of something pathbreaking is a new communication tool.
pathbreaking 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.
pioneering; groundbreaking; innovative
pathbreaking definition by American Heritage Dictionary
Characterized by originality and innovation; pioneering.