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

See also: covert

• Windward Islands
• Windward Isles
• Windward Passage
• windward side
• windy
• Windy City
• wine
• wine and dine
• wine bar
• wine barrel
• wine bottle
• wine bucket
• wine cask
• wine cellar
• wine cooler
• wine list
• wine lover
• wine merchant
• wine palm
• wine sauce
• wine steward
• wine taster
• wine tasting
• wine vinegar
• indigenous