Blacken name is an expression that portrays when someone has done something wrong and it has ruined their reputation. The antonyms for blacken name would be to clear, glorify or exonerate someone's reputation. When we clear someone's name, we eliminate all the false allegations and accusations that might have been levied against them. Glorifying someone's name would mean we are acknowledging and celebrating their good deeds, while exonerating someone's name would mean we are proclaiming them innocent, absolving them of any wrongdoing. Thus, these antonyms contribute to reinstating a person's dignity and reputation, which is an essential aspect of human life.