子虚乌有 zǐxūwūyǒu sheer fiction Origin Definitions Defs Strokes Stroke Words Sentences Sents 子虚 子虛 zǐxū Zi Xu fictional character in the "Rhapsody of Sir Vacuous" (子虚赋 zǐxūfù) by the Han dynasty poet 司马相如 sīmǎxiāngrú, representing the state of Chu乌有 烏有 wūyǒu Mr. Wuyou a fictional character in Sima Xiangru's Han-dynasty piece 子虚赋 zǐxūfù, used to represent something nonexistent or imaginary