子虚乌有

Explanation: Zixu not true; naught can there. Refers to the hypothetical, non-existent, unreal things. 　　Usage: Joint type; as the predicate attribute; containing derogatory 　　Source: Han Simaxiangru book "Zi Xu Fu" Chu Yu Qi to Zixu so, Wang noted hair Juji, and the Messengers a hunt. Tin strike, there is Mr. Wu Zi Xu Guo Cha, death is a public Cunyan. " 　　Examples: Man your levies, not Qi Zhen-odd, so ashamed scribes ~ s study also. However, Yin Qing Shen ★ "Romance of nations order" 　　Riddle: That do not care Thesaurus:  absurd and unreasonable, flyaway, castle in the air; daydream; ivory tower, a mare's nest, like a dream and a bubble's shadow, Mirage sea City, Ivory tower