1
as in clandestine
undertaken or done so as to escape being observed or known by others
an undercover operation to infiltrate the terrorist organization
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
as in spy
a person who tries secretly to obtain information for one country in the territory of another usually unfriendly country
within the city was a well-organized fifth column, and these undercovers would make themselves known as soon as the invading forces breached the city limits
Synonyms & Similar Words
as in underground
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of undercover
Anthony D'alessandro, Deadline, 24 Apr. 2025
Angelia Solomon met with an undercover law enforcement officer acting as a ‘hitman’ in the parking lot area of 1800 Galleria Boulevard Franklin, Williamson County.
—Peter D'abrosca, FOXNews.com, 15 Apr. 2025
Jessica Radloff, Glamour, 8 Sep. 2023
The documentary is a first time collaboration between ABC News Studios and the Associated Press following a former Army sniper undercover inside the KKK.
—ABC News, 30 Apr. 2023
See All Example Sentences for undercover
Adjective
Emmi’s directorial debut is set in 1990s Syracuse and follows a promising undercover officer (Blyth) who is assigned to lure and arrest gay men.
—Anthony D'alessandro, Deadline, 24 Apr. 2025
Angelia Solomon met with an undercover law enforcement officer acting as a ‘hitman’ in the parking lot area of 1800 Galleria Boulevard Franklin, Williamson County.
—Peter D'abrosca, FOXNews.com, 15 Apr. 2025
Noun
Back at the hospital Jack tells Brady that working undercover took a lot of courage.
—Jessica Radloff, Glamour, 8 Sep. 2023
The documentary is a first time collaboration between ABC News Studios and the Associated Press following a former Army sniper undercover inside the KKK.
—ABC News, 30 Apr. 2023
See All Example Sentences for undercover
Recent Examples of Synonyms for undercover
Adjective
-
He was allegedly held in a clandestine detention site and tortured by intelligence agents.—
Antonio Maria Delgado,
Miami Herald,
30 Apr. 2025
-
Guests can order craft cocktails at the circular bar, and for those who indulge, there’s a small, clandestine cigar room just off the entrance.—
John Wogan,
Travel + Leisure,
23 Apr. 2025
Adjective
-
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
Noun
-
Cassian is now a secret spy for the budding Rebel Alliance.—
Fidel Martinez,
Los Angeles Times,
25 Apr. 2025
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The payloads included a South Korean military radar spy satellite, a small commercial weather satellite, and the most interesting payload: an experimental reentry vehicle from a German startup named Atmos Space Cargo.—
Abigail Bassett,
ArsTechnica,
25 Apr. 2025
Adverb
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The first reports of periodical cicadas emerging from their long wait underground came over the weekend from Fayette County, Tennessee and Buncombe County, North Carolina, according to the citizen science site Cicada Safari, which allows Americans to track the insect's path across the nation.—
Elizabeth Weise,
USA Today,
29 Apr. 2025
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Before a brood materializes on land, each of its members — sometimes trillions of them — exist underground as larvae, subsiding on fluids from plant roots, according to the National Wildlife Federation.—
Emily Mae Czachor,
CBS News,
28 Apr. 2025
Adjective
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Amazing tales of dead spacecraft that came back to life Related: SpaceX launches secret US spy satellite on 19th anniversary of company's 1st-ever liftoff (video, photos) The HALO Trust has been working in Cambodia since the 1990s, helping to scour hundreds of square miles of contaminated land.—
Tereza Pultarova,
Space.com,
29 Apr. 2025
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For the privilege of associating with the Trumps, the startup would have to make, in effect, a secret multimillion dollar payment to World Liberty.—
Eric Lipton,
New York Times,
29 Apr. 2025
Noun
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Still, Democratic operatives say the optics matter.—
Alexis Simendinger,
The Hill,
23 Apr. 2025
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These hybrid operatives babysit swarms of agents, write policy tests and negotiate with regulators.—
Zennon Kapron,
Forbes.com,
23 Apr. 2025
Adjective
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And when the owner of the second-largest private company in the United States speaks, there’s an oracle-like aura that demands parsing.—
Philip Elliott,
Time,
2 May 2025
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Each silo features modern amenities like plush beds, kitchenettes, private patios, and climate control, all while keeping a rustic, back-to-the-land feel that fits the Montana landscape.—
Joni Sweet,
Forbes.com,
1 May 2025
Noun
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Gibbs meets his red-headed real estate agent, Diane (Kathleen Kenny).—
Bryan Alexander,
USA Today,
30 Apr. 2025
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The same source suggested to The Athletic that Sanders' refusal to hire an agent to represent him in an official capacity acted as a detriment.—
Chantz Martin,
FOXNews.com,
30 Apr. 2025
Cite this Entry
“Undercover.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undercover. Accessed 9 May. 2025.
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