groundbreaking
Americannoun
adjective
-
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.
Etymology
Origin of groundbreaking
First recorded in 1905–10; ground 1 + break + -ing 1, -ing 2
Explanation
Something groundbreaking is brand new, important, and original, like groundbreaking research that proves your cat really does love you. As a noun, groundbreaking is the traditional way of marking the very first day of a building project, when the ground is officially "broken," either literally with a shovel or figuratively. You could even attend the groundbreaking of a groundbreaking new hotel that's heated and cooled with sustainable geothermal energy. This word comes from the phrase to break ground, originally used to describe both construction and planting crops.
Vocabulary lists containing groundbreaking
Kwame Crashes the Underworld
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The Ice Cream Machine
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Ida B
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Around the issue of noise, Universal Studios Hollywood has been proactive with Fast & Furious: Hollywood Drift, devoting a website to just how silent and unobtrusive its groundbreaking coaster would be.
From Los Angeles Times ● Jul. 24, 2026
Multiple hurdles had to be conquered to make the groundbreaking ride — which finally opens this summer.
From Los Angeles Times ● Jul. 17, 2026
Von der Leyen faces pressure to act, with some EU states including France pushing for bloc-wide bans on social media for minors following Australia's groundbreaking ban for under-16s.
From Barron's ● Jul. 10, 2026
The subject of a groundbreaking show at New York’s Museum of Modern Art and London’s Tate Modern in 2014-15, the cut-outs have been gaining an ever-wider following.
From The Wall Street Journal ● Jul. 6, 2026
Emmanuel Roth arrives in Geneva on 29 January 2016 to destroy the Large Hadron Collider, the site of the groundbreaking discovery of gravitons, without which time travel would be impossible.
From "We Are the Ants" by Shaun David Hutchinson
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
