adj. 25B6; adjective EXTRAVAGANT, profligate, spendthrift, wasteful, improvident, imprudent, free-spending, prodigal, lavish; immoderate, excessive, reckless, irresponsible.
THRIFTLESS
Meaning of THRIFTLESS in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012