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.
As Saar’s 100th birthday approached, her work and its groundbreaking importance were celebrated afresh in a slew of articles, including two recent profiles in The Times.
From Los Angeles Times ● Jul. 27, 2026
"Star Trek" legend George Takei on Saturday headlined a 60th anniversary celebration of the groundbreaking sci-fi series at Comic-Con, which featured stars from across the Starship Enterprise's expanded universe of films and shows.
From Barron's ● Jul. 26, 2026
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
We want everyone at MIT to feel free to pursue the groundbreaking work they came here to do.
From The Wall Street Journal ● Jul. 14, 2026
Roy had expected an emotional reaction to the news of the groundbreaking ceremony, but Mullet Fingers remained surprisingly calm, almost as if he’d been expecting it.
From "Hoot" by Carl Hiaasen
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.
