extravagant in WordNet English dictionary

1. unrestrained, especially with regard to feelings
   "extravagant praise"; "exuberant compliments"; "overweening ambition"; "overweening greed"
   excessive  extravagant  exuberant  overweening 
   
2. recklessly wasteful
   "prodigal in their expenditures"
   extravagant  prodigal  profligate  spendthrift