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
Examples are automatically compiled from online sources to
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Recent Examples of undercover
Paul Tassi, Forbes.com, 12 May 2025
Additional surveillance cameras were added and undercover patrols have been implemented in the affected areas, Abbott said.
—Shambhavi Rimal, Fort Worth Star-Telegram, 10 May 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
This is how these games work, and the entire concept wouldn’t work if Jason is supposed to be an active undercover cop working toward some big reveal at the end.
—Paul Tassi, Forbes.com, 12 May 2025
Additional surveillance cameras were added and undercover patrols have been implemented in the affected areas, Abbott said.
—Shambhavi Rimal, Fort Worth Star-Telegram, 10 May 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
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Tired of using bulky night vision goggles for your clandestine nocturnal activities?—
Jennifer Ouellette,
ArsTechnica,
22 May 2025
-
The fiery combination of Mars trine Venus sparks things up in your clandestine 12th house of secrets and eighth house of intimate affairs.—
Valerie Mesa,
People.com,
22 May 2025
Adjective
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Striking Iran’s nuclear program would likely set off a much larger conflict in which Israel and the United States hunt for covert Iranian nuclear sites and Tehran retaliates in the Middle East and beyond.—
Richard Nephew,
Foreign Affairs,
26 May 2025
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Mon Mothma's speech Mon Mothma's covert support of the Rebels becomes public following the devastating events of the Ghorman Massacre.—
Nick Romano,
EW.com,
25 May 2025
Noun
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The season also brings back Monica Barbaro — fresh off her Oscar nomination for A Complete Unknown — as Schwarzenegger’s spy dad’s daughter.—
James Hibberd,
HollywoodReporter,
20 May 2025
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Paramount, the studio behind the eighth spy thriller, also hosted premieres in Tokyo and London.—
Rebecca Rubin,
Variety,
19 May 2025
Adverb
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When the eggs hatch six weeks later, new cicada nymphs will fall from the trees and burrow back underground, starting the cycle again.—
Chris Simon,
The Conversation,
22 May 2025
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Recently, New York drill has gone back underground, which is maybe where it was supposed to be all along.—
Alphonse Pierre,
Pitchfork,
22 May 2025
Adjective
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Cruise and Ving Rhames have appeared in all of the Mission: Impossible entries, while many other notable names have been part of the rotating roster of secret spies.—
Christopher Rudolph,
People.com,
23 May 2025
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Nor is there a secret shortcut that nobody told you about.—
Eliza Brooke,
Vox,
23 May 2025
Noun
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Mission now accomplished, Kittridge and U.S. Intelligence operative Jasper Briggs (Shea Whigham) — revealed to be the son of Jim Phelps (Jon Voight) from the first Mission — show up with a peace offering for Ethan.—
EW.com,
EW.com,
23 May 2025
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Prior to joining the Hunger Games franchise, he was best known for his portrayal of CIA operative Felix Leiter in the James Bond films.—
Emily Blackwood,
People.com,
22 May 2025
Adjective
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The museums are typically built in the presidents’ home states with private donations and endowments.—
Swapna Venugopal Ramaswamy,
USA Today,
26 May 2025
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The center, which does not receive government funding, relies solely on private donations to keep their programs and facility up and running.—
Toria Sheffield,
People.com,
26 May 2025
Noun
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The agents, most of which are set to be available by the end of 2025, can perform a variety of tasks; one handles sourcing and procurement, while another creates and manages quotes and still another orchestrates stock and handles in-store inventory details.—
Meghan Hall,
Sourcing Journal,
23 May 2025
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When Mission: Impossible began, and Cruise had not yet completed his transformation into a celluloid being whose veins flowed with red carpets, his character, Ethan Hunt, had more modest concerns, like finding moles in the IMF and protecting the identities of undercover CIA agents.—
Alison Willmore,
Vulture,
23 May 2025
Cite this Entry
“Undercover.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undercover. Accessed 31 May. 2025.
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