The phrase "reprehensible acts" refers to actions or behaviors that are considered very wrong or deserving of strong criticism and disapproval. Full definition
If that mother wishes to inculcate virtuous hatred in her son, perhaps she should teach him to hate those who were responsible for the morally reprehensible act of intentionally bombing innocent German civilians in the city of Dresden during World War II. (firstthings.com)
This tactic is one of the most reprehensible acts by a video game company I've seen. (thekoalition.com)
Like Speaker Sheldon Silver and Vito Lopez, they appear to walk «Scott» free, to perform more morally reprehensible acts on our behalf. (nystateofpolitics.com)