spendthrift /ˈspɛn(d)θɹɪft/adjective 2noun 2forms 3 adjective2 •Improvident, profligate, or wasteful. •Extravagant or lavish.This feels like a significant league title in more ways than one. It is now 14 years since Roman Abramovich emerged as an spendthrift presence in west London. — 2017 noun2 •Someone who spends money improvidently or wastefully.Prodigue, & grand beuveur de vin n'a du sien ne four, ne moulin: Pro. The drunken spendthrift vvasts his best possessions. — 1611 •(figurative) Anything that distributes its attributes profusely, without restraint. formsspendthrifts · more spendthrift · most spendthrift