Designed to elude detection

• Conducted with or marked by hidden aims or methods
• Hidden from general view or use
• Not openly made known
• Having an import not apparent to the senses nor obvious to the intelligence
• Squirrel, at times
• Kept private or not revealed
• Beyond ordinary understanding
• Not expressed

WordNet Word definitions in WordNet
n. any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream [syn: gland , secretory organ , secretor ]