extravagant

/ɪkˈstɹævəɡənt/adjective

Going far beyond reasonable limits; wildly excessive or unrestrained.

Example sentence

“They threw an extravagant party with fireworks and a live band.”

Applies to spending, gifts, and claims alike: an extravagant promise is one too grand to keep. Milder and more forgivable in tone than 'wasteful'.

Related words

lavishGiven or spent in great, generous amounts; extravagant.generousHappy to give freely, especially money or help, and often more than expected.stingyReluctant to spend money or share things with others; not generous.frugalCareful not to waste money or resources; spending only what is needed.thriftyCareful with money and avoiding waste.prosperousSuccessful and wealthy; doing well.