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

• unpunishable
• unpunishably
• unpunished
• unpurchasable
• unpurchaseable
• unpurchased
• unpurged
• unpurified
• unpurposed
• unpurse
• unpursed
• unpurses
• unpursing
• unpursued
• unpurvaide
• unpurveyed
• unputdownable
• unqualifiable
• unqualified
• unqualifiedly
• unqualifiedness
• unqualifiednesses
• unqualifies
• unqualify
• unqualifying