|Origin:||Latin vagans, present participle of vagari 'to wander about'|
spending or costing a lot of money, especially more than is necessary or more than you can afford:
Would it would be too extravagant to buy both?
an extravagant lifestyle
doing or using something too much or more than is necessary
Don't be too extravagant with the wine.
an extravagant display of loyalty
if someone makes extravagant claims, promises etc, they make big claims or promises that are not true or real:
extravagant claims about the drug's effectiveness
very impressive because of being very expensive, beautiful etc:
—extravagance noun [uncountable and countable]
the extravagance of the Royal Palace
His only extravagance (=the only expensive thing he bought) was fine wine.