Denshi Jisho — Online Japanese dictionary

冷酷 れいこく cruelty; coldheartedness; relentless; ruthless
Common word, Na-adjective, Noun 
冷酷無惨 れいこくむざん cruel and heartless; merciless; implacable; cold-blooded
Noun, Na-adjective 
冷酷無慙 れいこくむざん cruel and heartless; merciless; implacable; cold-blooded
Noun, Na-adjective 
冷酷無慚 れいこくむざん cruel and heartless; merciless; implacable; cold-blooded
Noun, Na-adjective 
冷酷無残 れいこくむざん cruel and heartless; merciless; implacable; cold-blooded
Noun, Na-adjective 
冷酷無情 れいこくむじょう cruel and heartless; merciless; implacable
Noun, Na-adjective 

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