无责任的

例句：

1. 1. He is an unreliable person who always makes mistakes.
   他是一位总是犯错的不可靠的人。
2. 2. The company's decision was unaccountable, and it caused a lot of confusion among employees.
   公司的决策是不负责任的，导致员工们感到困惑。
3. 3. The manager was accused of being irresponsible for the accident that occurred on the constructionsite.
   经理因工地发生的事故而被指责不负责任。