Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
ĭn-ărātus, a, um, adj., unploughed, untilled, fallow (poet.): terra, Verg. G. 1, 83: tellus, Hor. Epod. 16, 43: diu Pangaea, Stat. Th. 10, 512.