1. In a wasteful manner
   "the United States, up to the 1920s, used fuel lavishly, mainly because it was so cheap"
   - extravagantly 
2. In a rich and lavish manner
   "lavishly decorated"
   - richly, extravagantly

See also: lavish

• built
• built-in
• built-in bed
• built-soap powder
• built-up
• buirdly
• Bujumbura
• Bukharin
• bukkake
• Bulawayo
• bulb
• bulb-shaped
• bulbaceous
• bulbar
• bulbar conjunctiva
• bulbed
• bulbil
• bulblet
• bulblet bladder fern
• bulblet fern
• bulblike
• bulbourethral gland
• bulbous
• bulbous iris
• bulbous plant