冷れい酷こく無む残ざん

• 冷れい酷こく

  冷酷 is a common word for 'cruelty' or 'cold-heartedness'. 冷酷無残 is a stronger, more emphatic yojijukugo that adds the nuance of being utterly merciless and without pity.

• 無む残ざん

  無残 alone means 'cruel' or 'merciless', but 冷酷無残 combines it with 冷酷 to intensify the meaning into a set four-character idiom.

• 冷れい酷こく無む残ざん

  Most common kanji spelling for this yojijukugo.

• 冷れい酷こく無む惨ざん

  Variant spelling using 惨 (cruelty/misery).

• 冷れい酷こく無む慚ざん

  Rare variant using 慚 (shame).

• 冷れい酷こく無む慙ざん

  Rare variant using 慙 (shame).

A yojijukugo combining 冷酷 (cold-hearted cruelty) and 無残 (mercilessness). The exact historical origin is uncertain, but it follows the typical pattern of intensifying compounds in classical Chinese-derived idioms.