The phrase "dressing down" typically means a severe reprimand or criticism. There are many synonyms for this phrase, including dressing somebody down, giving someone a scolding, rebuking, reprimanding, scolding, berating, admonishing, reproaching, and upbraiding. Each of these synonyms conveys a strong sense of disapproval and censure. When someone is given a dressing down, they are being called out for their behavior or actions in a very direct and unforgiving way. The use of these synonyms can help writers add variety to their language and communicate a range of emotions.