undercover Meaning, Definition & Usage

  1. adjective satellite conducted with or marked by hidden aims or methods
    hugger-mugger; clandestine; secret; hole-and-corner; surreptitious; underground; cloak-and-dagger; hush-hush.
    • clandestine intelligence operations
    • cloak-and-dagger activities behind enemy lines
    • hole-and-corner intrigue
    • secret missions
    • a secret agent
    • secret sales of arms
    • surreptitious mobilization of troops
    • an undercover investigation
    • underground resistance

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