Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
sub-sĭmĭlis, e, adj., somewhat like, partly similar (very rare): Μελίκηρα melli albo subsimilis, Cels. 5, 26, 20: subsimile aliquid, Dig. 35, 3, 1 med.