底里 dǐlǐ inside story Origin Definitions Defs Strokes Stroke Words Sentences Sents 歇斯底里 xiēsīdǐlǐ hysterical Describing a person who has lost emotional control and is acting in an extreme or irrational way.封底里 fēngdǐlǐ inside back cover The inside surface of the back cover of a book or magazine; also called [[封三|封三|feng1 san1]] in Mainland China