What is another word for an unconfirmed story?

Here are some words for an unconfirmed story, depending on the nuance you want to convey:

Neutral:

* Rumor

* Hearsay

* Unverified report

* Anecdote

* Allegation

* Speculation

* Whispers

Negative:

* Gossip

* Untruth

* Fabrication

* Falsehood

* Myth

* Legend

* Urban legend

Formal:

* Uncorroborated account

* Unsubstantiated claim

Informal:

* Buzz

* Chatter

* Word on the street

The best word to use will depend on the context and the level of certainty you want to convey.