indiscretion
/ˌɪndɪsˈkreʃən/noun
mass noun
- behaviour or speech that is indiscreet or displays a lack of good judgement（言行）不慎重, 轻率, 草率：
he knew himself all too prone to indiscretion
他清楚自己非常容易草率行事
count noun sexual indiscretions.性生活不检点。
词源
Middle English: from late Latin indiscretio（n-）, from in- (expressing negation) + discretio 'separation' （in late Latin 'discernment'）, from discernere 'separate out, discern'.