I had thought factoid meant "a brief or trivial item of news or information"
But now I googled the meaning and it says,
In most examples of janus words online the meanings are quite exactly opposite. In this case I was not 100% sure. The opposite of a fact or news is an untruth. So since the alternative meaning is only unreliable news and not reliable untruth. Is this not a janus word? what do you all think?
factoid
/ˈfaktɔɪd/
noun
- an item of unreliable information that is reported and repeated so often that it becomes accepted as fact.
"he addresses the facts and factoids which have buttressed the film's legend"
NORTH AMERICAN
- a brief or trivial item of news or information.
"how does the brain retain factoids that you remember from a history test at school?"
I did not find it in this list.