Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
offensĭuncŭla, ae, f. dim. [offensio, II. B.], a slight offence, disgust, displeasure; a slight mishap (class.): si qua offensiuncula facta est animi tui, Cic. Fam. 13, 1, 4: in istā aedilitate offensiuncula accepta, some slight check, id. Planc. 21, 51.