Definition of "unsupported"
adjective
comparative more unsupported, superlative most unsupported
Without confirmation from a credible source, without verifying support
Quotations
The newspaper wrote that Jorn Barger, who started his Robot Wisdom weblog in 1997, is "regarded by many" as the "first blogger". But who are these "many"? If a blogger had written that phrase, it would have come with a link to the source. The Wall Street Journal's unsupported claim, though hedged with admissions of other contenders to the "first blogger" title, only reinforced the feeling, endemic among bloggers, that the mainstream media, derisively acronymised as MSM, just can't get anything right.
2007 August 28, Scott Rosenberg, The Guardian