Immoderate, unrestrained (11)
I believe the answer is:
extravagant
I believe this is a double definition.
'immoderate' is the first definition.
(thesaurus)
'unrestrained' is the second definition.
(similar in meaning)
(Other definitions for extravagant that I've seen before include "over the top" , "without restraint" , "Ostentatious" , "Recklessly wasteful" , "Unrestrained; wasteful" .)