If you talk about someone's indiscretion, you mean that they have done or said something that is risky, careless, or likely to upset people.
例句
Occasionally they paid for their indiscretion with their lives.有时候他们因自己的轻率而搭上性命。...punishing me for an indiscretion committed a decade ago.因10年前做过的糊涂事惩罚我
英汉词典释义
n.
不慎重的举止,轻率的言行
He had committed a minor sexual indiscretion.他在性方面曾有一次不太检点。He had never forgiven her for reporting his indiscretion in front of his friends.他一直没有原谅她在朋友面前揭发他的不检点行为。