"Recklessly extravagant" refers to spending or using resources in a wildly excessive manner without regard for the consequences or the potential for waste. It implies a lack of restraint or careful consideration, often leading to financial irresponsibility. This behavior can result in significant debt or loss of resources, as the individual acts impulsively and without foresight.
Boiling down to the essence of the meaning, the best word to switch recklessly for would be carelessly.
foolhardy
He was recklessly driving the car on the Highway.
Crossing the road recklessly is called JAYWALKING
Recklessly.
You drive recklessly.
spendthrift
I was looking for this for a crossword - I think HELLBENT might fit the bill. 8 letters foolhardily confident right? TEMERITY in a nutshell.
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A danger on the road.
A road hog.
As a modifier to the verb. Sentence: "The boy was running through traffic". Using the adverb "recklessly" as an adverb: "The boy was recklessly running through traffic".