Moneysaving, a term used to describe a frugal or economical lifestyle, has a number of antonyms that represent the opposite idea. These include the words 'extravagant,' 'lavish,' 'wasteful,' 'profligate' and 'improvident.' Extravagant refers to a lifestyle characterized by excess, overspending, or indulgence. Lavish denotes a lavish, opulent, or luxurious lifestyle, usually associated with those who are wealthy. Wasteful describes a lifestyle that is characterized by the unnecessary use of resources or funds. Profligate refers to a lifestyle characterized by excessive spending without any regard for the consequences of one's actions. Finally, improvident refers to those who spend money improvidently, failing to plan or save for the future.