There are many synonyms for the phrase "supposedly guilty" depending on the context of the situation. If someone is accused of a crime, one might say "allegedly guilty" or "suspected of being guilty". Terms like "presumed guilty" and "assumed guilty" suggest that people are jumping to conclusions before all the evidence is gathered. "Likely guilty" is another phrase that suggests strong evidence points to someone's guilt. It's important to remember that just because someone is "supposedly guilty" doesn't necessarily mean they are. In a court of law, the burden of proof lies with the prosecution to prove beyond a reasonable doubt that someone is truly guilty.