子虛烏有 [－虚乌－]

Jyutping zi2 heoi1 wu1 jau5
Pinyin zǐ xū wū yǒu

Definitions (CC-CEDICT)
  1. (idiom) to have no basis in fact; to be the product of sb's imagination
Definitions (CC-CANTO)
  1. nonexistent and imaginary
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. phrase, figuratively, idiomatic
    fictitious; nonexistent; made-up; fabricated
    (syn.) 有云无影, 有雲無影
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）