compunction

compunction
noun

[mass noun][usu. with negative]a feeling of guilt or moral scruple that prevents or follows the doing of something bad
良心的谴责；内疚；顾忌；后悔，悔恨
they used their tanks without compunction.
他们毫无顾忌地使用了坦克。

派生
compunctious
adjective
compunctiously
adverb
语源

Middle English: from Old French componction, from ecclesiastical Latin compunctio(n-), from Latin compungere 'prick sharply', from com- (expressing intensive force) + pungere 'to prick'