profligatory adjective2 •Tending to or encouraging wastefulness.Dr. K.M. Naidu pointed out that the present economic crisis was the result of profligatory behaviour of the government since 1985. — 1991 •Tending to or encouraging immoral behaviour.Cook was amazed by this procedure, but others, notably missionaries, viewed it in a more derogatory light, labelling it profligatory or the height of debauchery (Ellis, 1831). — 1995 formsmore profligatory · most profligatory