"Supposedly" is close, but it could mean what people assume, rather than what has been said. It sounds a little awkward, but "accusedly" is a closer synonym. (So, we have another word for it, but not necessarily a better word for it.)
Another name for allegedly is purportedly.
Another name for the local court is the municipal court.
Another name for administrative law is regulatory law.
Another name for Newton's 1st law is the law of inertia.
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An alternate name for judge is justice, magistrate, or referee.
Soccer
The name of the myth which featured Scylla was the Odyssey allegedly written by Homer
He was allegedly guilty.She allegedly fired the gun. They allegedly started the riot.
The white woman who Emmett Till was accused of whistling at was Carolyn Bryant.
Cleopatra allegedly had one child with Julius Caesar.Cleopatra allegedly had one child with Julius Caesar.Cleopatra allegedly had one child with Julius Caesar.Cleopatra allegedly had one child with Julius Caesar.Cleopatra allegedly had one child with Julius Caesar.Cleopatra allegedly had one child with Julius Caesar.Cleopatra allegedly had one child with Julius Caesar.Cleopatra allegedly had one child with Julius Caesar.Cleopatra allegedly had one child with Julius Caesar.
Allegedly, it was the sixth stop on a railroad line; the map said, "No VI".
No, allegedly does not mean roughly. Allegedly actually means something that has been said, but has not yet proven true.
That is the correct spelling of the adverb "allegedly" (as claimed or professed).
J. D. Tippit
knee socks. the long socks are allegedly where the name "soccer" comes from.
She and Tim got divorced for several alleged reasons; she allegedly got pregnant by another man, etc.
Davina is pregnant with a child from another man and allegedly was having an affair. Tim has custody of his kids.