The phrase "stinging indictment" means a strong criticism or accusation that is highly damaging or painful for the person or entity being criticized. It implies that the criticism is severe and will have a significant impact. Full definition
Satire only works when its most stinging indictments are directed toward the powerful. (rachelheldevans.com)
This is a stinging indictment of the shareholder value movement, but is it justified? (inc.com)
During Princeton Theological Seminary's 2014 Black Theology and Leadership Institute, of which I was a fellow, Dr. John Kinney, a professor of theology at Virginia Union, offered this stinging indictment: (religion.blogs.cnn.com)