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Jyutping long6 dak1 heoi1 ming4
Pinyin làng dé xū míng

Definitions (CC-CEDICT)
  1. to have an undeserved reputation (idiom)
Definitions (粵典–words.hk)
  1. 語句
    空​有名​聲​,​但​就​冇​相​應​嘅​本​領
    to have an undeserved reputation
    • 呢間好出名嘅餐廳啲嘢好好食,唔係浪得虛名。
      呢间好出名嘅餐厅啲嘢好好食,唔系浪得虚名。
      ni1 gaan1 hou2 ceot1 meng2 ge3 caan1 teng1 di1 je5 hou2 hou2 sik6, m4 hai6 long6 dak1 heoi1 ming4.
      The dishes of this popular restaurant are really tasty, so their reputation isn't undeserved.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to not live up to one's illustrious reputation
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    呢间好出名嘅餐厅啲嘢好好食,唔系浪得虚名。
    呢間好出名嘅餐廳啲嘢好好食,唔係浪得虛名。
    ni1 gaan1 hou2 ceot1 meng2 ge3 caan1 teng1 di1 je5 hou2 hou2 sik6, m4 hai6 long6 dak1 heoi1 ming4.
    • The dishes of this popular restaurant are really tasty, so their reputation isn't undeserved.
  2. Cantonese
    浪得虚名
    浪得虛名
    • to enjoy an unwarranted reputation