1
as in clandestine
undertaken or done so as to escape being observed or known by others
an underground operation to smuggle ancient artifacts out of the country
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Antonyms & Near Antonyms
2
as in subterranean
being, situated, or operating beneath the surface of the earth
an underground shopping mall that is part of the city's subway system
Synonyms & Similar Words
Antonyms & Near Antonyms
as in resistance
a secret organization in a conquered country fighting against enemy forces
joined the underground while still a teenager
Synonyms & Similar Words
as in undercover
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
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Recent Examples of underground
Rob Sheffield, Rolling Stone, 10 May 2025
Even the price tag of the new Mount Weather work is confidential, but contracting details suggest workers will must be skilled in both underground construction and HVAC equipment, including air handlers.
—Trevor Hughes, USA Today, 1 May 2025
Alphonse Pierre, Pitchfork, 21 Mar. 2025
The city this month began drilling at Del Prado Park, the first of several sites being explored to find safe, potable water underground.
—Kyle Martin, The Mercury News, 24 Jan. 2025
Dina Kraft, Christian Science Monitor, 7 May 2025
Efforts to crack down have failed, as lawmakers worry bans would simply push the trade underground or into delivery services, making regulation even harder.
—Tribune Content Agency, Mercury News, 6 May 2025
See All Example Sentences for underground
Adjective
The 18 tracks feature a murderers’ row of underground producers, including many he’s worked with in the past — Segal, the Alchemist, Messiah Musik, Preservation — as well as El-P, Sadhugold, Ant from Atmosphere, Steel Tipped Dove, and Conductor Williams.
—Rob Sheffield, Rolling Stone, 10 May 2025
Even the price tag of the new Mount Weather work is confidential, but contracting details suggest workers will must be skilled in both underground construction and HVAC equipment, including air handlers.
—Trevor Hughes, USA Today, 1 May 2025
Noun
This retro aesthetic now defines a reborn British underground, one that has been in a full-court press for the last few weeks.
—Alphonse Pierre, Pitchfork, 21 Mar. 2025
The city this month began drilling at Del Prado Park, the first of several sites being explored to find safe, potable water underground.
—Kyle Martin, The Mercury News, 24 Jan. 2025
Adverb
The government’s premise is that such a drastic move is necessary to finally oust Hamas from power and win the release of Israelis still held hostage deep underground in the Islamist militant group’s tunnels.
—Dina Kraft, Christian Science Monitor, 7 May 2025
Efforts to crack down have failed, as lawmakers worry bans would simply push the trade underground or into delivery services, making regulation even harder.
—Tribune Content Agency, Mercury News, 6 May 2025
See All Example Sentences for underground
Recent Examples of Synonyms for underground
Adjective
-
The Gestapo, Hitler’s secret police, combed the Poles’ ranks in search of men with experience in clandestine resistance organizations.—
Paul Hockenos,
Smithsonian Magazine,
8 May 2025
-
Gaddafi agreed to suspend his country's nuclear weapons program in December 2003, following years of clandestine negotiations that began during the Clinton administration and continued under George W. Bush.—
Faisal Kutty,
MSNBC Newsweek,
8 May 2025
Adjective
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Newer commissions, including Steve McQueen’s subterranean environment and work by Meg Webster and Senga Nengudi, offered further meditative moments.—
Vogue,
Vogue,
12 May 2025
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The Spa Set on a subterranean level but softly aglow with natural light thanks to light wells in the garden above, Rosewood’s Asaya spa is a temple to serenity.—
Nicole Trilivas,
Travel + Leisure,
8 May 2025
Noun
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The subtle but notable act of resistance comes just months after Trump cleaned house at the Kennedy Center, installing himself as chairman and close ally Richard Grenell as interim president.—
Anna Kaufman,
USA Today,
9 May 2025
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Signature details of the watch include a radiant purple mother-of-pearl dial, 300 meters of water resistance, and the Oris Red Rotor all-mechanical movement.—
Anthony DeMarco,
Forbes.com,
8 May 2025
Adjective
-
Samuel French, a Texas actor on the rise who portrayed the undercover FBI agent CJ Robinson in Martin Scorsese’s Killers of the Flower Moon, has died.—
Mike Barnes,
HollywoodReporter,
12 May 2025
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Pisano has been with the show since his 2021 debut as undercover officer Detective Joe Velasco.—
KiMi Robinson,
USA Today,
8 May 2025
Adjective
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The covert intervention in Chile is perhaps the best example.—
Gal Beckerman,
The Atlantic,
1 May 2025
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Based on the students’ correspondence and diaries, their covert engagement with Catholic thought became a cornerstone of the White Rose’s rejection of Nazi tyranny.—
Peter Nguyen,
The Conversation,
30 Apr. 2025
Adjective
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The city’s unlawful camping ordinance prohibits camping, occupying camp facilities or using camp paraphernalia on public or private property.—
Mathew Miranda,
Sacbee.com,
13 May 2025
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The bill would require private insurers to pay in-network therapists at least 141% of the rate Medicare pays for the same behavioral health or substance use disorder service.—
Chicago Tribune,
Chicago Tribune,
13 May 2025
Cite this Entry
“Underground.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/underground. Accessed 16 May. 2025.
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