1. The state or quality of being mysterious 
2. Something mysterious; a mystery

Derived forms: mysteriousnesses

• calciferous
• calcific
• calcification
• calcifuge
• calcifugous
• calcify
• calcimine
• calcination
• calcine
• calcined lime
• calcite
• calcitic
• calcitonin
• calcium
• calcium bicarbonate
• calcium blocker
• calcium carbide
• calcium carbonate
• calcium chloride
• calcium hydrate
• calcium hydride
• calcium hydroxide
• calcium hypochlorite
• calcium ion
• calcium lactate