He acted wrongly and without scruple.

他做了错事毫不内疚.

《简明英汉词典》

He will do anything without scruple.

他任何(恶)事都做得出来.

辞典例句

She will tell lies without scruple.

她会肆无忌惮地说谎.

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He tells lies without scruple.

他毫无顾忌地说谎.

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Be ware, be ware! he'll cheat it without scruple, who can without fear.

当心, 当心! 行骗而无所畏惧者, 也将无所顾虑.

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