spending much more than is necessary or wise; wasteful

an extravagant shopper.

excessively high

extravagant expenses; extravagant prices.

exceeding the bounds of reason, as actions, demands, opinions, or passions.

going beyond what is deserved or justifiable

extravagant praise.

Obsolete . wandering beyond bounds.

adjective

close , economical , moderate , provident , reasonable , saving , stingy , thrifty , unpretentious , seethrifty

adjective

absurd , bizarre , costly , crazy , exaggerated , excessive , exorbitant , expensive , extortionate , extreme , fanciful , fancy , fantastic , flamboyant , flashy , foolish , garish , gaudy , grandiose , immoderate , implausible , improvident , imprudent , inordinate , lavish , ludicrous , nonsensical , ornate , ostentatious , outrageous , overpriced , preposterous , pretentious , prodigal , profligate , reckless , ridiculous , showy , silly , spendthrift , steep , unbalanced , unconscionable , unreasonable , unrestrained , profuse , wasteful , overabundant , overmuch , undue , exuberant , lush , luxuriant , opulent , riotous , superabundant , fanatic , generous , luxurious , pompous , unthrifty , wild