prodigality UK /ˌprɒdɪˈɡælɪti/US /ˌprɑdɪˈɡælɪti/ noun2 •Wasteful extravagance. •Lavish generosity.At least there was an air of reckless prodigality in their appearance, and the most fastidious guest would surely find the wine his soul craved for, at all events) in the label. — 1913 formsprodigalities