extravagancy

1. Extravagance.
2. Something extravagant.

noun

1. A condition of going or being beyond what is needed, desired, or appropriate: embarrassment, excess, excessiveness, exorbitance, extravagance, extravagantness, overabundance, plethora, superabundance, superfluity, superfluousness, surfeit. See excess/insufficiency/enough.
2. Excessive or imprudent expenditure: extravagance, lavishness, prodigality, profligacy, profuseness, profusion, squander, waste, wastefulness. See careful/careless, save/waste.
3. Something costly and unnecessary: extravagance, frill, luxury. See save/waste.