冷字 [－－]

Jyutping laang5 zi6
Pinyin lěng zì

Definitions (CC-CEDICT)
  1. obscure word
  2. unfamiliar character
Definitions (Wiktionary)
  1. noun
    unfamiliar character; rarely used character
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）