There are several synonyms for the phrase "get scot-free," which means to escape punishment or consequences for one's actions. One alternative is "get off scot-free," which has the same meaning. Another option is "walk away scot-free," which suggests a calm or arrogant attitude towards one's wrongdoing. Additionally, you can use "avoid punishment," "evade responsibility," or "escape unharmed" as phrases with similar meanings. Each of these expressions has a slightly different connotation, so it is essential to choose the one that best suits the context in which you want to use it. Overall, using synonyms can help to diversify your writing and make it more interesting and engaging.