1. In an abundant manner
   - abundantly, copiously, profusely, prolifically 
2. In a wasteful manner
   - lavishly 
3. In a rich and lavish manner
   - lavishly, richly

See also: extravagant

• gross domestic product
• gross estate
• gross margin
• gross national product
• gross out
• gross profit
• gross profit margin
• gross revenue
• gross sales
• gross ton
• grossbeak
• grossly
• grossness
• grossular
• Grossulariaceae
• grossularite
• grosz
• grot
• grotesque
• grotesquely
• grotesqueness
• grotesquerie
• grotesquery
• Grotius
• grotto