Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
flāgĭtĭōse, adv., v. flagitiosus fin.
flāgĭtĭōsus, a, um, adj. [flagitium], shameful, disgraceful, infamous, flagitious, profligate, dissolute (both of persons and things): flagitiosi sunt, qui venereas voluptates inflammato animo concupiscunt, Cic. Tusc. 4, 32, 68: homo flagitiosissimus, libidinosissimus nequissimusque, id. Verr. 2, 2, 78, § 192: civitas pessima ac flagitiosissima facta est, Sall. C. 5, 9: vitiosa et flagitiosa vita, Cic. Fin. 2, 29, 94: itaque videas rebus injustis justos maxime dolere, imbellibus fortes, flagitiosis modestos, id. Lacl. 13, 47: libidines, id. Verr. 2, 2, 54, § 134: cf.: animus omni genere voluptatum, Quint. 12, 11, 18: emptio, possessio bonorum, Cic. Rosc. Am. 9, 24: flagitiosissima facinora facere, Sall. J. 32, 2: socordia flagitiosior, id. ib. 85, 22: fama flagitiosissima, Tac. H. 2, 31: quod ea, quae re turpia non sunt, verbis flagitiosa ducamus, Cic. Off. 1, 35, 128: regem armis quam munificentia vinci, minus flagitiosum, Sall. J. 110, 5; cf.: flagitiosissimum existimo impune injuriam accepisse, id. ib. 31, 21: quod flagitiosius est, Tac. A. 3, 54.
Hence, adv.: flāgĭtĭōse, shamefully, basely, infamously, flagitiously (freq. in Cic.; elsewh. rare): impure et flagitiose vivere, Cic. Fin. 3, 11, 38: turpiter et flagitiose dicta, id. de Or. 1, 53, 227; cf. Auct. Her. 1, 5, 8: facere, Cic. Verr. 2, 1, 24, § 63: judicia male et flagitiose tueri, id. ib. 1, 15, 44: sumus flagitiose imparati, id. Att. 7, 15, 3: desciscere ab aliquo, id. Fin. 5, 31, 94: obitae legationes, id. Font. 11, 24.
Comp., Arn. 4, 141.
Sup.: ut turpissime flagitiosissimeque discedat, Cic. Div. in Caecil. 22, 71: servire aliorum amori, id. Cat. 2, 4, 8.