akolastic
/ˌakə(ʊ)ˈlastɪk/(also acolastic) rare (chiefly in Ancient Greek History and Ancient Greek Philos. )
noun
A prodigal or licentious person; = akolast rare.
adjective
Prodigal, licentious; (in early use also) †incorrigible.
Origin
Early 17th century; earliest use found in Henry Cockeram (fl. 1623–1658), lexicographer. From post-classical Latin Acolastus and (especially in later use) its etymon ancient Greek ἀκόλαστος + -ic.