C (無情) 无情 wu2qing2
no-feeling/ unfeeling/ heartless/ merciless/ ruthless
gefühllos, schonungslos, gnadenlos

D (無情無義) 无情无义 wu2qing2wu2yi4
heartless
erbarmungslos, rücksichtslos

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Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.

無 无 negative, no, not / KangXi radical 71
情 情 feeling, sentiment, emotion
無 无 negative, no, not / KangXi radical 71
義 义 right conduct, righteousness

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from CC-CEDICT under a Creative Commons Attribution-Share Alike 3.0 License

無情' + 无情* * + pitiless/ ruthless merciless