underground 2
adjectivedomain: all adj
Princeton WordNet [ver.3.1]
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EnglishDefinition
conducted with or marked by hidden aims or methods
Examples
- 1.secret sales of arms
- 2.cloak-and-dagger activities behind enemy lines
- 3.secret missions
- 4.surreptitious mobilization of troops
- 5.hole-and-corner intrigue
- 6.a secret agent
- 7.underground resistance
- 8.clandestine intelligence operations
- 9.an undercover investigation
