There are many synonyms for the phrase "cry out against", which means to express strong disapproval or condemnation. Some of these synonyms include denounce, condemn, criticize, censure, rebuke, reprimand, reprove, disapprove, object, protest, challenge, oppose, resist, and protest. These words can be used interchangeably depending on the context and the degree of severity of the disapproval expressed. When taking a stance against something, it is important to choose the right words to communicate the message clearly and with impact. Using synonyms can add variety to your language and make your message more powerful.