unsuccessfully
From LSJ
τῶν Λειβηθρίων ἀμουσότερος → more uncultured than Leibethrans, more uncultured than the people of Leibethra, lowest degree of mental cultivation
τῶν Λειβηθρίων ἀμουσότερος → more uncultured than Leibethrans, more uncultured than the people of Leibethra, lowest degree of mental cultivation
without accomplishing anything: P. ἀπράκτως, V. ἀνηνύτως.
unfortunately: P. and V. δυστυχῶς, P. ἀτυχῶς; see also in vain, under vain.