noun, na-adjective
cruel and heartless; merciless; implacable
A yojijukugo describing a person or action that is utterly cold-hearted and devoid of compassion. Stronger and more literary than 冷酷 alone.
彼は冷酷無情な態度で部下を扱った。
He treated his subordinates with a cruel and heartless attitude.
その冷酷無情な決定に皆が反発した。
Everyone opposed that merciless decision.
A yojijukugo composed of 冷酷 (cold-hearted, cruel) and 無情 (heartless, unfeeling). The combination intensifies the meaning to 'utterly cruel and merciless'.