Accusing someone tentatively means to make an accusation in a hesitant or uncertain manner. There are several synonyms that can be used instead of "accuse tentatively." One option is to say "suggest" or "imply" instead of accuse to convey a less accusatory tone. Another synonym is "insinuate," which can imply an accusation indirectly. Using phrases like "it seems" or "it appears" can also convey a sense of uncertainty when making an accusation. Other synonyms for "accuse tentatively" include "allege," "hint at," "raise suspicion," or "cast doubt." It's important to choose words carefully when making accusations, as they can have serious implications.