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Synonyms

undercover

American  
[uhn-der-kuhv-er, uhn-der-kuhv-] / ˌʌn dərˈkʌv ər, ˈʌn dərˌkʌv- /

adjective

  1. working or done out of public sight; secret.

    an undercover investigation.

    Synonyms:
    hidden, clandestine, covert
  2. engaged in spying or securing confidential information.

    an undercover agent.


undercover British  
/ ˌʌndəˈkʌvə /

adjective

  1. done or acting in secret

    undercover operations

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of undercover

First recorded in 1850–55; under- + cover

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.

And to make it even more zany — what if someone went undercover in that animal body?

From Los Angeles Times

By the novel’s 1966 setting, Gloria Steinem had already gone undercover as a Playboy Bunny and the second-wave feminist movement was starting to gain traction in certain circles.

From Los Angeles Times

“It was an opportunity to show him as someone else. He’s undercover,” says Bellizzi.

From Los Angeles Times

Jess Phillips, Minister for Safeguarding and Violence against Women and Girls, said the government is funding "a network of undercover officers online and a dedicated police taskforce to disrupt crimes, catch offenders and protect children".

From BBC

The first three seasons of "Tehran", which focused on a Mossad agent working undercover in the Iranian capital, were filmed in Athens.

From Barron's