The phrase "gotten off a technicality" implies that someone has escaped punishment due to a minor detail or loophole in the law. There are many synonyms that can be used to describe this situation, such as being acquitted, exonerated, cleared, released, or vindicated. Other phrases that can be used include "getting away with murder," "escaping punishment," or "slipping through the cracks." In some cases, the individual may be perceived as guilty, but due to technicalities in the legal system, they are unable to be held accountable. Regardless of the language used, it is important to ensure that justice is served, and technicalities should not be used to let criminals off the hook.