Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
impācātus (inp-), a, um, adj. [2. inpacatus], not peaceable, unquiet (poet. and in post-Aug. prose): aut impacatos a tergo horrebis Iberos, warlike, plundering, Verg. G. 3, 408: fortuna, Stat. S. 5, 1, 137: quies alti pelagi, Claud. in. Ruf. 1, 70: vita, Sen. de Ira, 3, 27 fin.: odia, Claud. in. Eutr. 2, 212.