Most allegedly may be replaced with words like purportedly or supposedly. These words imply that something has been reported to have happened, but there is some doubt surrounding its accuracy. Another synonym for most allegedly is ostensibly, which denotes that something appears to be the case or is believed to be true, but there may be other factors influencing the situation. Other words that convey a similar meaning include putatively, reputedly, and seemingly. These synonyms should be used with care to avoid suggesting a bias or promoting unsubstantiated claims without clear evidence to support them.