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

Derived forms: mysteriousnesses

• revulsion
• rewa-rewa
• reward
• rewardful
• rewarding
• rewardingly
• rewind
• rewire
• reword
• rewording
• rework
• rewritable
• rewrite
• rewrite man
• rewriter
• rewriting
• Rex
• rex begonia
• Rex Harrison
• Reye's syndrome
• Reyes
• Reykjavik
• Reynard
• Reynolds
• Rf