0 the quality of spending or using large amounts of money, time, energy, etc., especially in a way that is not very wise:
He was known for his prodigality, buying cars and jewellery and staying at expensive hotels.
British visitors to San Francisco start-ups returned with awed tales of executive prodigality. They told of one company which employed FedEx to move parcels from one floor of its building to another.
I was impressed by the film’s prodigality of invention and sense of adventure.
These penalties should be as mild as possible in contrast to the useless prodigality of torments which characterized the existing system.