| Noun | 1. | extravagance - the quality of exceeding the appropriate limits of decorum or probability or truth; "we were surprised by the extravagance of his description" | |
| 2. | extravagance - the trait of spending extravagantly | |
| 3. | extravagance - excessive spendingwaste, wastefulness, dissipation - useless or profitless activity; using or expending or consuming thoughtlessly or carelessly; "if the effort brings no compensating gain it is a waste"; "mindless dissipation of natural resources" | |