supposedly
As a matter of supposition; in the beliefs or according to the claims of some people.
Example
“People from other planets have supposedly visited Earth in flying saucers.”
Other meanings
Used in place of "supposed to be," often in informal or colloquial speech, as a mispronunciation.
“My parents told me I am supposedly in bed by 10 P.M.”
Where this comes from
This definition is adapted from “supposedly” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.