| adjective | unrestrained, especially with regard to feelings “extravagant praise” |
| adjective | recklessly wasteful “prodigal in their expenditures” |
| excessiveness | noun | immoderation as a consequence of going beyond sufficient or permitted limits |
| extravagance | noun | the quality of exceeding the appropriate limits of decorum or probability or truth |
| prodigal | noun | a recklessly extravagant consumer |
| prodigality | noun | excessive spending |
| profligate | noun | a recklessly extravagant consumer |