- the act or ceremony of breaking ground for a new construction project.
- of or relating to such a ceremony.
- originating or pioneering a new endeavor, field of inquiry, or the like: Pasteur's groundbreaking work in bacteriology.
Origin of groundbreaking
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for ground-breaking
The president should confront Saudi leaders over the ludicrous fatwa against ‘The 99,’ a ground-breaking Muslim superhero comic.Saudi Arabia’s Comic Book Fatwa
March 28, 2014
This is a nation of museums and patents, timeless holy sites and ground-breaking innovation.Full Video and Transcript of Obama's Speech in Israel
March 21, 2013
Others simply expressed pride in their ground-breaking leader.Obama’s Unsung Army of Backstage Volunteers at the Inaugural Balls
January 22, 2013
- innovativea ground-breaking novel
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for ground-breaking
Online Etymology Dictionary, © 2010 Douglas Harper