How to Use "irretrievable" with Example Sentences

1. But it was all too late . The mogul empire was in irretrievable decline .
2. In that decade , general motors poured tens of billions of dollars into its pension fund - an irretrievable loss of opportunity .
3. You are supposed to get rid of carelessness , for it often leads to irretrievable .
4. You are supposed to get rid of carelessness , for it often leads to irretrievable errors .
5. You are supposed to get rid of careless , for it often leads to irretrievable errors .