There are several synonyms that can be used in place of the phrase "not suspected." Some possible options include "unaccused," "unindicted," "unimputed," and "unheld." These terms can be used to describe someone who has not been accused or charged with a crime, or who has not been implicated in a particular situation. Additionally, the phrase "not under suspicion" can be used to convey a similar meaning, suggesting that someone is not currently being investigated or considered a possible suspect. Overall, there are a variety of ways to express the concept of "not suspected," depending on the specific context and tone desired.