bonanza /bə-nanˈzə or bəʊ- or bo-/

1. A rich mine or vein of precious ore (N American)
2. A large amount of (usu) silver
3. Any source of wealth or stroke of luck

Very prosperous

• unrestingnesses
• unrestored
• unrestrainable
• unrestrained
• unrestrainedly
• unrestraint
• unrestraints
• unrestricted
• unrestrictedly
• unrests
• unretarded
• unretentive
• unretouched
• unreturnable
• unreturned
• unreturning
• unreturningly
• unrevealable
• unrevealed
• unrevealing
• unrevenged
• unrevengeful
• unreverend
• unreverent
• unreversed