Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
offensĭbĭlĭs, e, adj. [1. offendo], liable to stumble, stumbling (eccl. Lat.): qui offensibilibus et caducis gressibus per viam mortis incedit (al. offensilibus), Lact. 4, 26, 10.