Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
in-fāmis, e, adj. [2. in-fama], of ill report, ill spoken of, disreputable, notorious, infamous (class.): homines ceteris vitiis atque omni dedecore infames, Cic. Clu. 47, 130: Metellus, infamis auctor deserendae Italiae, Liv. 27, 11, 12: captarum pecuniarum suspicione, id. 42, 45, 8: Valens ob lucra et quaestus infamis, Tac. H. 2, 56: filius, Quint. 9, 2, 79: ut inops infamis ne sim, Plaut. Trin. 3, 2, 63.
Of things: domus infamis et pestilens, Plin. Ep. 7, 27, 5: digitus, the middle finger, because used in unbecoming and scornful gestures (cf. Juv. 10, 53), Pers. 2, 33 Gildersleeve ad loc.: tabella, Cic. Div. in Caecil. 7, 24: turpis adulescentia, vita infamis, id. Font. 11, 24: carmen, Ov. R. Am. 254: annus, Liv. 8, 18, 2: Alpes frigoribus, id. 8, 21, 31: scopuli, Hor. C. 1, 3, 20: materia, Gell. 17, 12, 1: quo facto (maledicto) condemnatus infamis efficitur, Paul. Sent. 5, 4, 19.
Adv.: infāmĭ-ter, infamously; only sup.: alicui infamissime adhaerere, Capitol. Pert. 13, 8.