发虚 Traditional form: 發虛 Pinyin (reading): fāxū Definitions: to feel weak to be diffident Characters: 发 - to issue, to dispatch, to send out; hair 虚 - false; worthless, hollow, empty; vain Traditional characters: 發 - to issue, to dispatch, to send out; hair 虛 - false; worthless, hollow, empty; vain