Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
in-jūrus, a, um, adj. [2. in-jus], that acts unlawfully, unjust, injurious: impure, inhoneste, injure, illex, labes popli, Plaut. Pers. 3, 3, 4; cf.: injurum, perjurum, Paul. ex Fest. p. 110 Müll.