1. Conducted with or marked by hidden aims or methods
   "clandestine intelligence operations"
   - cloak-and-dagger, hole-and-corner, hugger-mugger, hush-hush, secret, surreptitious, undercover, underground

See also: covert

Encyclopedia: Clandestine

• Sorbus torminalis
• sorcerer
• sorceress
• sorcerise
• sorcerize
• sorcerous
• sorcery
• sordid
• sordidly
• sordidness
• sordino
• sore
• sore throat
• sore-eyed
• sorehead
• sorel
• sorely
• Soren Aabye Kierkegaard
• Soren Kierkegaard
• Soren Peter Lauritz Sorensen
• soreness
• Sorensen
• Sorex
• Sorex araneus
• Sorex cinereus